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< title > Mu - linux/crenshaw2-1.subx< / title >
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< a href = 'https://github.com/akkartik/mu/blob/main/linux/crenshaw2-1.subx' > https://github.com/akkartik/mu/blob/main/linux/crenshaw2-1.subx< / a >
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< pre id = 'vimCodeElement' >
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< span id = "L1" class = "LineNr" > 1 < / span > < span class = "subxComment" > # Port of < a href = "https://github.com/akkartik/crenshaw/blob/master/tutor2.1.pas" > https://github.com/akkartik/crenshaw/blob/master/tutor2.1.pas< / a > < / span >
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< span id = "L2" class = "LineNr" > 2 < / span > < span class = "subxComment" > # which corresponds to the section " single digits" in < a href = "https://compilers.iecc.com/crenshaw/tutor2.txt" > https://compilers.iecc.com/crenshaw/tutor2.txt< / a > < / span >
< span id = "L3" class = "LineNr" > 3 < / span > < span class = "subxComment" > # except that we support hex digits.< / span >
< span id = "L4" class = "LineNr" > 4 < / span > < span class = "subxComment" > #< / span >
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< span id = "L5" class = "LineNr" > 5 < / span > < span class = "subxComment" > # To run:< / span >
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< span id = "L6" class = "LineNr" > 6 < / span > < span class = "subxComment" > # $ bootstrap/bootstrap translate [01]*.subx apps/crenshaw2-1.subx -o apps/crenshaw2-1< / span >
< span id = "L7" class = "LineNr" > 7 < / span > < span class = "subxComment" > # $ echo '3' |bootstrap/bootstrap run crenshaw2-1< / span >
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< span id = "L8" class = "LineNr" > 8 < / span > < span class = "subxComment" > # Expected output:< / span >
< span id = "L9" class = "LineNr" > 9 < / span > < span class = "subxComment" > # # syscall(exit, 3)< / span >
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< span id = "L10" class = "LineNr" > 10 < / span > < span class = "subxComment" > # bb/copy-to-ebx 3/imm32< / span >
< span id = "L11" class = "LineNr" > 11 < / span > < span class = "subxComment" > # b8/copy-to-eax 1/imm32/exit< / span >
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< span id = "L12" class = "LineNr" > 12 < / span > < span class = "subxComment" > # cd/syscall 0x80/imm8< / span >
< span id = "L13" class = "LineNr" > 13 < / span > < span class = "subxComment" > #< / span >
< span id = "L14" class = "LineNr" > 14 < / span > < span class = "subxComment" > # To run the generated output:< / span >
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< span id = "L15" class = "LineNr" > 15 < / span > < span class = "subxComment" > # $ echo '3' |bootstrap/bootstrap run crenshaw2-1 > z1.subx< / span >
< span id = "L16" class = "LineNr" > 16 < / span > < span class = "subxComment" > # $ bootstrap/bootstrap translate z1.subx -o z1< / span >
< span id = "L17" class = "LineNr" > 17 < / span > < span class = "subxComment" > # $ bootstrap/bootstrap run z1< / span >
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< span id = "L18" class = "LineNr" > 18 < / span > < span class = "subxComment" > # $ echo $?< / span >
< span id = "L19" class = "LineNr" > 19 < / span > < span class = "subxComment" > # 3< / span >
< span id = "L20" class = "LineNr" > 20 < / span > < span class = "subxComment" > #< / span >
< span id = "L21" class = "LineNr" > 21 < / span > < span class = "subxComment" > # Stdin must contain just a single hex digit. Other input will print an error:< / span >
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< span id = "L22" class = "LineNr" > 22 < / span > < span class = "subxComment" > # $ echo 'xyz' |bootstrap/bootstrap run crenshaw2-1< / span >
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< span id = "L23" class = "LineNr" > 23 < / span > < span class = "subxComment" > # Error: integer expected< / span >
< span id = "L24" class = "LineNr" > 24 < / span > < span class = "subxComment" > #< / span >
< span id = "L25" class = "LineNr" > 25 < / span > < span class = "subxComment" > # Names in this file sometimes follow Crenshaw's original rather than my usual< / span >
< span id = "L26" class = "LineNr" > 26 < / span > < span class = "subxComment" > # naming conventions.< / span >
< span id = "L27" class = "LineNr" > 27 < / span >
< span id = "L28" class = "LineNr" > 28 < / span > == code
< span id = "L29" class = "LineNr" > 29 < / span > < span class = "subxComment" > # instruction effective address register displacement immediate< / span >
< span id = "L30" class = "LineNr" > 30 < / span > < span class = "subxS1Comment" > # . op subop mod rm32 base index scale r32< / span >
< span id = "L31" class = "LineNr" > 31 < / span > < span class = "subxS1Comment" > # . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes< / span >
< span id = "L32" class = "LineNr" > 32 < / span >
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< span id = "L33" class = "LineNr" > 33 < / span > < span class = "SpecialChar" > Entry< / span > : < span class = "subxComment" > # run tests if necessary, call 'compile' if not< / span >
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< span id = "L34" class = "LineNr" > 34 < / span > < span class = "subxS1Comment" > # . prologue< / span >
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< span id = "L35" class = "LineNr" > 35 < / span > 89/copy 3/mod/direct 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/r32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy esp to ebp< / span >
< span id = "L36" class = "LineNr" > 36 < / span >
< span id = "L37" class = "LineNr" > 37 < / span > < span class = "subxComment" > # initialize heap< / span >
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< span id = "L38" class = "LineNr" > 38 < / span > < span class = "subxS1Comment" > # . Heap = new-segment(Heap-size)< / span >
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< span id = "L39" class = "LineNr" > 39 < / span > < span class = "subxS2Comment" > # . . push args< / span >
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< span id = "L40" class = "LineNr" > 40 < / span > 68/push < span class = "SpecialChar" > < a href = '120allocate.subx.html#L27' > Heap< / a > < / span > /imm32
< span id = "L41" class = "LineNr" > 41 < / span > ff 6/subop/push 0/mod/indirect 5/rm32/.disp32 < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "SpecialChar" > < a href = '120allocate.subx.html#L34' > Heap-size< / a > < / span > /disp32 < span class = "subxComment" > # push *Heap-size< / span >
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< span id = "L42" class = "LineNr" > 42 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L43" class = "LineNr" > 43 < / span > e8/call < a href = '104new-segment.subx.html#L40' > new-segment< / a > /disp32
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< span id = "L44" class = "LineNr" > 44 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L45" class = "LineNr" > 45 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L46" class = "LineNr" > 46 < / span >
< span id = "L47" class = "LineNr" > 47 < / span > < span class = "subxH1Comment" > # - if argc > 1 and argv[1] == " test" , then return run_tests()< / span >
< span id = "L48" class = "LineNr" > 48 < / span > < span class = "subxComment" > # if (argc < = 1) goto run-main< / span >
< span id = "L49" class = "LineNr" > 49 < / span > 81 7/subop/compare 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0/disp8 1/imm32 < span class = "subxComment" > # compare *ebp< / span >
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< span id = "L50" class = "LineNr" > 50 < / span > 7e/jump-if-< = $run-main/disp8
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< span id = "L51" class = "LineNr" > 51 < / span > < span class = "subxComment" > # if (!kernel-string-equal?(argv[1], " test" )) goto run-main< / span >
< span id = "L52" class = "LineNr" > 52 < / span > < span class = "subxS1Comment" > # . eax = kernel-string-equal?(argv[1], " test" )< / span >
< span id = "L53" class = "LineNr" > 53 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L54" class = "LineNr" > 54 < / span > 68/push < span class = "Constant" > " test" < / span > /imm32
< span id = "L55" class = "LineNr" > 55 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+8)< / span >
< span id = "L56" class = "LineNr" > 56 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L57" class = "LineNr" > 57 < / span > e8/call < a href = '103kernel-string-equal.subx.html#L31' > kernel-string-equal?< / a > /disp32
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< span id = "L58" class = "LineNr" > 58 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L59" class = "LineNr" > 59 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
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< span id = "L60" class = "LineNr" > 60 < / span > < span class = "subxS1Comment" > # . if (eax == false) goto run-main< / span >
< span id = "L61" class = "LineNr" > 61 < / span > 3d/compare-eax-and 0/imm32/false
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< span id = "L62" class = "LineNr" > 62 < / span > 74/jump-if-= $run-main/disp8
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< span id = "L63" class = "LineNr" > 63 < / span > < span class = "subxComment" > # run-tests()< / span >
< span id = "L64" class = "LineNr" > 64 < / span > e8/call run-tests/disp32
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< span id = "L65" class = "LineNr" > 65 < / span > < span class = "subxComment" > # syscall(exit, *Num-test-failures)< / span >
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< span id = "L66" class = "LineNr" > 66 < / span > 8b/copy 0/mod/indirect 5/rm32/.disp32 < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 3/r32/ebx < span class = "SpecialChar" > < a href = '102test.subx.html#L89' > Num-test-failures< / a > < / span > /disp32 < span class = "subxComment" > # copy *Num-test-failures to ebx< / span >
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< span id = "L67" class = "LineNr" > 67 < / span > eb/jump $main:end/disp8
< span id = "L68" class = "LineNr" > 68 < / span > < span class = "Constant" > $run-main< / span > :
< span id = "L69" class = "LineNr" > 69 < / span > < span class = "subxH1Comment" > # - otherwise read a program from stdin and emit its translation to stdout< / span >
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< span id = "L70" class = "LineNr" > 70 < / span > < span class = "subxS1Comment" > # . compile(Stdin, 1/stdout, 2/stderr, ed)< / span >
< span id = "L71" class = "LineNr" > 71 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L72" class = "LineNr" > 72 < / span > 68/push 0/imm32/exit-descriptor
< span id = "L73" class = "LineNr" > 73 < / span > 68/push 2/imm32/stderr
< span id = "L74" class = "LineNr" > 74 < / span > 68/push 1/imm32/stdout
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< span id = "L75" class = "LineNr" > 75 < / span > 68/push < span class = "SpecialChar" > < a href = '112read-byte.subx.html#L14' > Stdin< / a > < / span > /imm32
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< span id = "L76" class = "LineNr" > 76 < / span > < span class = "subxS2Comment" > # . . call< / span >
< span id = "L77" class = "LineNr" > 77 < / span > e8/call < a href = 'crenshaw2-1.subx.html#L86' > compile< / a > /disp32
< span id = "L78" class = "LineNr" > 78 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L79" class = "LineNr" > 79 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0x10/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L80" class = "LineNr" > 80 < / span > < span class = "subxComment" > # syscall(exit, 0)< / span >
< span id = "L81" class = "LineNr" > 81 < / span > bb/copy-to-ebx 0/imm32
< span id = "L82" class = "LineNr" > 82 < / span > < span class = "Constant" > $main:end< / span > :
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< span id = "L83" class = "LineNr" > 83 < / span > e8/call < a href = '000init.subx.html#L18' > syscall_exit< / a > /disp32
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< span id = "L84" class = "LineNr" > 84 < / span >
< span id = "L85" class = "LineNr" > 85 < / span > < span class = "subxComment" > # the main entry point< / span >
< span id = "L86" class = "LineNr" > 86 < / span > < span class = "subxFunction" > compile< / span > : < span class = "subxComment" > # in: (addr buffered-file), out: fd or (addr stream byte), err: fd or (addr stream byte), ed: (addr exit-descriptor)< / span >
< span id = "L87" class = "LineNr" > 87 < / span > < span class = "subxS1Comment" > # . prologue< / span >
< span id = "L88" class = "LineNr" > 88 < / span > 55/push-ebp
< span id = "L89" class = "LineNr" > 89 < / span > 89/copy 3/mod/direct 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/r32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy esp to ebp< / span >
< span id = "L90" class = "LineNr" > 90 < / span > < span class = "subxS1Comment" > # . save registers< / span >
< span id = "L91" class = "LineNr" > 91 < / span > 50/push-eax
< span id = "L92" class = "LineNr" > 92 < / span > 51/push-ecx
< span id = "L93" class = "LineNr" > 93 < / span > < span class = "subxComment" > # prime the pump< / span >
< span id = "L94" class = "LineNr" > 94 < / span > < span class = "subxS1Comment" > # . Look = get-char(in)< / span >
< span id = "L95" class = "LineNr" > 95 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L96" class = "LineNr" > 96 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+8)< / span >
< span id = "L97" class = "LineNr" > 97 < / span > < span class = "subxS2Comment" > # . . call< / span >
< span id = "L98" class = "LineNr" > 98 < / span > e8/call < a href = 'crenshaw2-1.subx.html#L508' > get-char< / a > /disp32
< span id = "L99" class = "LineNr" > 99 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L100" class = "LineNr" > 100 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L101" class = "LineNr" > 101 < / span > < span class = "subxComment" > # var num/ecx: (stream byte 7)< / span >
< span id = "L102" class = "LineNr" > 102 < / span > < span class = "subxComment" > # Numbers can be 32 bits or 8 hex bytes long. One of them will be in 'Look', so we need space for 7 bytes.< / span >
< span id = "L103" class = "LineNr" > 103 < / span > < span class = "subxComment" > # Sizing the stream just right buys us overflow-handling for free inside 'get-num'.< / span >
< span id = "L104" class = "LineNr" > 104 < / span > < span class = "subxComment" > # Add 12 bytes for 'read', 'write' and 'size' fields, for a total of 19 bytes, or 0x13 in hex.< / span >
< span id = "L105" class = "LineNr" > 105 < / span > < span class = "subxComment" > # The stack pointer is no longer aligned, so dump_stack() can be misleading past this point.< / span >
< span id = "L106" class = "LineNr" > 106 < / span > 81 5/subop/subtract 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0x13/imm32 < span class = "subxComment" > # subtract from esp< / span >
< span id = "L107" class = "LineNr" > 107 < / span > 89/copy 3/mod/direct 1/rm32/ecx < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/r32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy esp to ecx< / span >
< span id = "L108" class = "LineNr" > 108 < / span > < span class = "subxComment" > # initialize the stream< / span >
< span id = "L109" class = "LineNr" > 109 < / span > < span class = "subxS1Comment" > # . num-> size = 7< / span >
< span id = "L110" class = "LineNr" > 110 < / span > c7 0/subop/copy 1/mod/*+disp8 1/rm32/ecx < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/disp8 7/imm32 < span class = "subxComment" > # copy to *(ecx+8)< / span >
< span id = "L111" class = "LineNr" > 111 < / span > < span class = "subxS1Comment" > # . clear-stream(num)< / span >
< span id = "L112" class = "LineNr" > 112 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L113" class = "LineNr" > 113 < / span > 51/push-ecx
< span id = "L114" class = "LineNr" > 114 < / span > < span class = "subxS2Comment" > # . . call< / span >
2021-03-24 00:31:08 +00:00
< span id = "L115" class = "LineNr" > 115 < / span > e8/call < a href = '106stream.subx.html#L17' > clear-stream< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L116" class = "LineNr" > 116 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L117" class = "LineNr" > 117 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L118" class = "LineNr" > 118 < / span > < span class = "subxComment" > # read a digit from 'in' into 'num'< / span >
< span id = "L119" class = "LineNr" > 119 < / span > < span class = "subxS1Comment" > # . get-num(in, num, err, ed)< / span >
< span id = "L120" class = "LineNr" > 120 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L121" class = "LineNr" > 121 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0x14/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+20)< / span >
< span id = "L122" class = "LineNr" > 122 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0x10/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+16)< / span >
< span id = "L123" class = "LineNr" > 123 < / span > 51/push-ecx/num
< span id = "L124" class = "LineNr" > 124 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+8)< / span >
< span id = "L125" class = "LineNr" > 125 < / span > < span class = "subxS2Comment" > # . . call< / span >
< span id = "L126" class = "LineNr" > 126 < / span > e8/call < a href = 'crenshaw2-1.subx.html#L187' > get-num< / a > /disp32
< span id = "L127" class = "LineNr" > 127 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L128" class = "LineNr" > 128 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0x10/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L129" class = "LineNr" > 129 < / span > < span class = "subxComment" > # render 'num' into the following template on 'out':< / span >
< span id = "L130" class = "LineNr" > 130 < / span > < span class = "subxComment" > # bb/copy-to-ebx _num_< / span >
< span id = "L131" class = "LineNr" > 131 < / span > < span class = "subxComment" > # b8/copy-to-eax 1/imm32/exit< / span >
< span id = "L132" class = "LineNr" > 132 < / span > < span class = "subxComment" > # cd/syscall 0x80/imm8< / span >
< span id = "L133" class = "LineNr" > 133 < / span > < span class = "subxComment" > #< / span >
< span id = "L134" class = "LineNr" > 134 < / span > < span class = "subxS1Comment" > # . write(out, " bb/copy-to-ebx " )< / span >
< span id = "L135" class = "LineNr" > 135 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L136" class = "LineNr" > 136 < / span > 68/push < span class = "Constant" > " bb/copy-to-ebx " < / span > /imm32
< span id = "L137" class = "LineNr" > 137 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+12)< / span >
< span id = "L138" class = "LineNr" > 138 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L139" class = "LineNr" > 139 < / span > e8/call < a href = '108write.subx.html#L24' > write< / a > /disp32
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< span id = "L140" class = "LineNr" > 140 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L141" class = "LineNr" > 141 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L142" class = "LineNr" > 142 < / span > < span class = "subxS1Comment" > # . write-stream(out, num)< / span >
< span id = "L143" class = "LineNr" > 143 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L144" class = "LineNr" > 144 < / span > 51/push-ecx/num
< span id = "L145" class = "LineNr" > 145 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+12)< / span >
< span id = "L146" class = "LineNr" > 146 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L147" class = "LineNr" > 147 < / span > e8/call < a href = '113write-stream.subx.html#L17' > write-stream< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L148" class = "LineNr" > 148 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L149" class = "LineNr" > 149 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L150" class = "LineNr" > 150 < / span > < span class = "subxS1Comment" > # . write(out, Newline)< / span >
< span id = "L151" class = "LineNr" > 151 < / span > < span class = "subxS2Comment" > # . . push args< / span >
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< span id = "L152" class = "LineNr" > 152 < / span > 68/push < span class = "SpecialChar" > < a href = '102test.subx.html#L82' > Newline< / a > < / span > /imm32
2020-06-12 14:57:27 +00:00
< span id = "L153" class = "LineNr" > 153 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+12)< / span >
< span id = "L154" class = "LineNr" > 154 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L155" class = "LineNr" > 155 < / span > e8/call < a href = '108write.subx.html#L24' > write< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L156" class = "LineNr" > 156 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L157" class = "LineNr" > 157 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L158" class = "LineNr" > 158 < / span > < span class = "subxS1Comment" > # . write(out, " b8/copy-to-eax 1/imm32/exit\n" )< / span >
< span id = "L159" class = "LineNr" > 159 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L160" class = "LineNr" > 160 < / span > 68/push < span class = "Constant" > " b8/copy-to-eax 1/imm32/exit\n" < / span > /imm32
< span id = "L161" class = "LineNr" > 161 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+12)< / span >
< span id = "L162" class = "LineNr" > 162 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L163" class = "LineNr" > 163 < / span > e8/call < a href = '108write.subx.html#L24' > write< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L164" class = "LineNr" > 164 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L165" class = "LineNr" > 165 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L166" class = "LineNr" > 166 < / span > < span class = "subxS1Comment" > # . write(out, " cd/syscall 0x80/imm8\n" )< / span >
< span id = "L167" class = "LineNr" > 167 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L168" class = "LineNr" > 168 < / span > 68/push < span class = "Constant" > " cd/syscall 0x80/imm8\n" < / span > /imm32
< span id = "L169" class = "LineNr" > 169 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+12)< / span >
< span id = "L170" class = "LineNr" > 170 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L171" class = "LineNr" > 171 < / span > e8/call < a href = '108write.subx.html#L24' > write< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L172" class = "LineNr" > 172 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L173" class = "LineNr" > 173 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L174" class = "LineNr" > 174 < / span > < span class = "Constant" > $compile:end< / span > :
< span id = "L175" class = "LineNr" > 175 < / span > < span class = "subxS1Comment" > # . restore registers< / span >
< span id = "L176" class = "LineNr" > 176 < / span > 59/pop-to-ecx
< span id = "L177" class = "LineNr" > 177 < / span > 58/pop-to-eax
< span id = "L178" class = "LineNr" > 178 < / span > < span class = "subxS1Comment" > # . epilogue< / span >
< span id = "L179" class = "LineNr" > 179 < / span > 89/copy 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 5/r32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy ebp to esp< / span >
< span id = "L180" class = "LineNr" > 180 < / span > 5d/pop-to-ebp
< span id = "L181" class = "LineNr" > 181 < / span > c3/return
< span id = "L182" class = "LineNr" > 182 < / span >
< span id = "L183" class = "LineNr" > 183 < / span > < span class = "subxComment" > # Read a single digit into 'out'. Abort if there are none, or if there is no< / span >
< span id = "L184" class = "LineNr" > 184 < / span > < span class = "subxComment" > # space in 'out'.< / span >
< span id = "L185" class = "LineNr" > 185 < / span > < span class = "subxComment" > # Input comes from the global variable 'Look' (first byte) and the argument< / span >
< span id = "L186" class = "LineNr" > 186 < / span > < span class = "subxComment" > # 'in' (rest). We leave the next byte from 'in' into 'Look' on exit.< / span >
< span id = "L187" class = "LineNr" > 187 < / span > < span class = "subxFunction" > get-num< / span > : < span class = "subxComment" > # in: (addr buffered-file), out: (addr stream byte), err: fd or (addr stream byte), ed: (addr exit-descriptor)< / span >
< span id = "L188" class = "LineNr" > 188 < / span > < span class = "subxComment" > # pseudocode:< / span >
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< span id = "L189" class = "LineNr" > 189 < / span > < span class = "subxComment" > # if (!digit?(Look)) expected(ed, err, " integer" )< / span >
2020-06-12 14:57:27 +00:00
< span id = "L190" class = "LineNr" > 190 < / span > < span class = "subxComment" > # if out-> write > = out-> size< / span >
< span id = "L191" class = "LineNr" > 191 < / span > < span class = "subxComment" > # write(err, " Error: too many digits in number\n" )< / span >
< span id = "L192" class = "LineNr" > 192 < / span > < span class = "subxComment" > # stop(ed, 1)< / span >
< span id = "L193" class = "LineNr" > 193 < / span > < span class = "subxComment" > # out-> data[out-> write] = LSB(Look)< / span >
< span id = "L194" class = "LineNr" > 194 < / span > < span class = "subxComment" > # ++out-> write< / span >
< span id = "L195" class = "LineNr" > 195 < / span > < span class = "subxComment" > # Look = get-char(in)< / span >
< span id = "L196" class = "LineNr" > 196 < / span > < span class = "subxComment" > #< / span >
< span id = "L197" class = "LineNr" > 197 < / span > < span class = "subxComment" > # registers:< / span >
< span id = "L198" class = "LineNr" > 198 < / span > < span class = "subxComment" > # in: esi< / span >
< span id = "L199" class = "LineNr" > 199 < / span > < span class = "subxComment" > # out: edi< / span >
< span id = "L200" class = "LineNr" > 200 < / span > < span class = "subxComment" > # out-> write: ecx (cached copy; need to keep in sync)< / span >
< span id = "L201" class = "LineNr" > 201 < / span > < span class = "subxComment" > # out-> size: edx< / span >
< span id = "L202" class = "LineNr" > 202 < / span > < span class = "subxComment" > # temporaries: eax, ebx< / span >
< span id = "L203" class = "LineNr" > 203 < / span > < span class = "subxComment" > # We can't allocate Look to a register because it gets written implicitly in< / span >
< span id = "L204" class = "LineNr" > 204 < / span > < span class = "subxComment" > # get-char in each iteration of the loop. (Thereby demonstrating that it's< / span >
< span id = "L205" class = "LineNr" > 205 < / span > < span class = "subxComment" > # not the right interface for us. But we'll keep it just to follow Crenshaw.)< / span >
< span id = "L206" class = "LineNr" > 206 < / span > < span class = "subxComment" > #< / span >
< span id = "L207" class = "LineNr" > 207 < / span > < span class = "subxS1Comment" > # . prologue< / span >
< span id = "L208" class = "LineNr" > 208 < / span > 55/push-ebp
< span id = "L209" class = "LineNr" > 209 < / span > 89/copy 3/mod/direct 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/r32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy esp to ebp< / span >
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< span id = "L210" class = "LineNr" > 210 < / span > < span class = "subxH1Comment" > # - if (digit?(Look)) expected(ed, err, " integer" )< / span >
< span id = "L211" class = "LineNr" > 211 < / span > < span class = "subxS1Comment" > # . eax = digit?(Look)< / span >
2020-06-12 14:57:27 +00:00
< span id = "L212" class = "LineNr" > 212 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L213" class = "LineNr" > 213 < / span > ff 6/subop/push 0/mod/indirect 5/rm32/.disp32 < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "SpecialChar" > < a href = 'crenshaw2-1.subx.html#L553' > Look< / a > < / span > /disp32 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *Look< / span >
< span id = "L214" class = "LineNr" > 214 < / span > < span class = "subxS2Comment" > # . . call< / span >
2021-03-24 00:31:08 +00:00
< span id = "L215" class = "LineNr" > 215 < / span > e8/call < a href = 'crenshaw2-1.subx.html#L531' > digit?< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L216" class = "LineNr" > 216 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L217" class = "LineNr" > 217 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L218" class = "LineNr" > 218 < / span > < span class = "subxS1Comment" > # . if (eax == false)< / span >
< span id = "L219" class = "LineNr" > 219 < / span > 3d/compare-eax-and 0/imm32/false
2020-07-11 07:02:29 +00:00
< span id = "L220" class = "LineNr" > 220 < / span > 75/jump-if-!= $get-num:main/disp8
2020-06-12 14:57:27 +00:00
< span id = "L221" class = "LineNr" > 221 < / span > < span class = "subxS1Comment" > # . expected(ed, err, " integer" )< / span >
< span id = "L222" class = "LineNr" > 222 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L223" class = "LineNr" > 223 < / span > 68/push < span class = "Constant" > " integer" < / span > /imm32
< span id = "L224" class = "LineNr" > 224 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0x10/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+16)< / span >
< span id = "L225" class = "LineNr" > 225 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0x14/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+20)< / span >
< span id = "L226" class = "LineNr" > 226 < / span > < span class = "subxS2Comment" > # . . call< / span >
< span id = "L227" class = "LineNr" > 227 < / span > e8/call < a href = 'crenshaw2-1.subx.html#L466' > expected< / a > /disp32 < span class = "subxComment" > # never returns< / span >
< span id = "L228" class = "LineNr" > 228 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L229" class = "LineNr" > 229 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/imm32 < span class = "subxComment" > # add to esp< / span >
2020-07-11 07:02:29 +00:00
< span id = "L230" class = "LineNr" > 230 < / span > < span class = "Constant" > $get-num:main< / span > :
2020-06-12 14:57:27 +00:00
< span id = "L231" class = "LineNr" > 231 < / span > < span class = "subxH1Comment" > # - otherwise read a digit< / span >
< span id = "L232" class = "LineNr" > 232 < / span > < span class = "subxS1Comment" > # . save registers< / span >
< span id = "L233" class = "LineNr" > 233 < / span > 50/push-eax
< span id = "L234" class = "LineNr" > 234 < / span > 51/push-ecx
< span id = "L235" class = "LineNr" > 235 < / span > 52/push-edx
< span id = "L236" class = "LineNr" > 236 < / span > 53/push-ebx
< span id = "L237" class = "LineNr" > 237 < / span > 56/push-esi
< span id = "L238" class = "LineNr" > 238 < / span > 57/push-edi
< span id = "L239" class = "LineNr" > 239 < / span > < span class = "subxComment" > # read necessary variables to registers< / span >
< span id = "L240" class = "LineNr" > 240 < / span > < span class = "subxComment" > # esi = in< / span >
< span id = "L241" class = "LineNr" > 241 < / span > 8b/copy 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 6/r32/esi 8/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # copy *(ebp+8) to esi< / span >
< span id = "L242" class = "LineNr" > 242 < / span > < span class = "subxComment" > # edi = out< / span >
< span id = "L243" class = "LineNr" > 243 < / span > 8b/copy 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 7/r32/edi 0xc/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # copy *(ebp+12) to edi< / span >
< span id = "L244" class = "LineNr" > 244 < / span > < span class = "subxComment" > # ecx = out-> write< / span >
< span id = "L245" class = "LineNr" > 245 < / span > 8b/copy 0/mod/indirect 7/rm32/edi < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 1/r32/ecx < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy *edi to ecx< / span >
< span id = "L246" class = "LineNr" > 246 < / span > < span class = "subxComment" > # edx = out-> size< / span >
< span id = "L247" class = "LineNr" > 247 < / span > 8b/copy 1/mod/*+disp8 7/rm32/edi < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 2/r32/edx 8/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # copy *(edi+8) to edx< / span >
< span id = "L248" class = "LineNr" > 248 < / span > < span class = "Constant" > $get-num:loop< / span > :
< span id = "L249" class = "LineNr" > 249 < / span > < span class = "subxComment" > # if (out-> write > = out-> size) error< / span >
< span id = "L250" class = "LineNr" > 250 < / span > 39/compare 3/mod/direct 2/rm32/edx < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 1/r32/ecx < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # compare edx with ecx< / span >
< span id = "L251" class = "LineNr" > 251 < / span > 7d/jump-if-< $get-num:stage2/disp8
< span id = "L252" class = "LineNr" > 252 < / span > < span class = "subxS1Comment" > # . error(ed, err, msg) # TODO: show full number< / span >
< span id = "L253" class = "LineNr" > 253 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L254" class = "LineNr" > 254 < / span > 68/push < span class = "Constant" > " get-num: too many digits in number" < / span > /imm32
< span id = "L255" class = "LineNr" > 255 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0x10/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+16)< / span >
< span id = "L256" class = "LineNr" > 256 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0x14/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+20)< / span >
< span id = "L257" class = "LineNr" > 257 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L258" class = "LineNr" > 258 < / span > e8/call < a href = '114error.subx.html#L9' > error< / a > /disp32 < span class = "subxComment" > # never returns< / span >
2020-06-12 14:57:27 +00:00
< span id = "L259" class = "LineNr" > 259 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L260" class = "LineNr" > 260 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L261" class = "LineNr" > 261 < / span > < span class = "Constant" > $get-num:stage2< / span > :
< span id = "L262" class = "LineNr" > 262 < / span > < span class = "subxComment" > # out-> data[out-> write] = LSB(Look)< / span >
< span id = "L263" class = "LineNr" > 263 < / span > 8d/copy-address 1/mod/*+disp8 4/rm32/sib 7/base/edi 1/index/ecx < span class = "Normal" > . < / span > 3/r32/ebx 0xc/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # copy edi+ecx+12 to ebx< / span >
< span id = "L264" class = "LineNr" > 264 < / span > 8b/copy 0/mod/indirect 5/rm32/.disp32 < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0/r32/eax < span class = "SpecialChar" > < a href = 'crenshaw2-1.subx.html#L553' > Look< / a > < / span > /disp32 < span class = "Normal" > . < / span > < span class = "subxComment" > # copy *Look to eax< / span >
< span id = "L265" class = "LineNr" > 265 < / span > 88/copy-byte 0/mod/indirect 3/rm32/ebx < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0/r32/AL < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy byte at AL to *ebx< / span >
< span id = "L266" class = "LineNr" > 266 < / span > < span class = "subxComment" > # ++out-> write< / span >
< span id = "L267" class = "LineNr" > 267 < / span > 41/increment-ecx
< span id = "L268" class = "LineNr" > 268 < / span > < span class = "subxComment" > # Look = get-char(in)< / span >
< span id = "L269" class = "LineNr" > 269 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L270" class = "LineNr" > 270 < / span > 56/push-esi
< span id = "L271" class = "LineNr" > 271 < / span > < span class = "subxS2Comment" > # . . call< / span >
< span id = "L272" class = "LineNr" > 272 < / span > e8/call < a href = 'crenshaw2-1.subx.html#L508' > get-char< / a > /disp32
< span id = "L273" class = "LineNr" > 273 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L274" class = "LineNr" > 274 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L275" class = "LineNr" > 275 < / span > < span class = "Constant" > $get-num:loop-end< / span > :
< span id = "L276" class = "LineNr" > 276 < / span > < span class = "subxComment" > # persist necessary variables from registers< / span >
< span id = "L277" class = "LineNr" > 277 < / span > 89/copy 0/mod/indirect 7/rm32/edi < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 1/r32/ecx < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy ecx to *edi< / span >
< span id = "L278" class = "LineNr" > 278 < / span > < span class = "Constant" > $get-num:end< / span > :
< span id = "L279" class = "LineNr" > 279 < / span > < span class = "subxS1Comment" > # . restore registers< / span >
< span id = "L280" class = "LineNr" > 280 < / span > 5f/pop-to-edi
< span id = "L281" class = "LineNr" > 281 < / span > 5e/pop-to-esi
< span id = "L282" class = "LineNr" > 282 < / span > 5b/pop-to-ebx
< span id = "L283" class = "LineNr" > 283 < / span > 5a/pop-to-edx
< span id = "L284" class = "LineNr" > 284 < / span > 59/pop-to-ecx
< span id = "L285" class = "LineNr" > 285 < / span > 58/pop-to-eax
< span id = "L286" class = "LineNr" > 286 < / span > < span class = "subxS1Comment" > # . epilogue< / span >
< span id = "L287" class = "LineNr" > 287 < / span > 89/copy 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 5/r32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy ebp to esp< / span >
< span id = "L288" class = "LineNr" > 288 < / span > 5d/pop-to-ebp
< span id = "L289" class = "LineNr" > 289 < / span > c3/return
< span id = "L290" class = "LineNr" > 290 < / span >
< span id = "L291" class = "LineNr" > 291 < / span > < span class = "subxTest" > test-get-num-reads-single-digit< / span > :
< span id = "L292" class = "LineNr" > 292 < / span > < span class = "subxH1Comment" > # - check that get-num returns first character if it's a digit< / span >
< span id = "L293" class = "LineNr" > 293 < / span > < span class = "subxComment" > # This test uses exit-descriptors. Use ebp for setting up local variables.< / span >
< span id = "L294" class = "LineNr" > 294 < / span > 55/push-ebp
< span id = "L295" class = "LineNr" > 295 < / span > 89/copy 3/mod/direct 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/r32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy esp to ebp< / span >
< span id = "L296" class = "LineNr" > 296 < / span > < span class = "subxComment" > # clear all streams< / span >
< span id = "L297" class = "LineNr" > 297 < / span > < span class = "subxS1Comment" > # . clear-stream(_test-stream)< / span >
< span id = "L298" class = "LineNr" > 298 < / span > < span class = "subxS2Comment" > # . . push args< / span >
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< span id = "L299" class = "LineNr" > 299 < / span > 68/push < a href = '108write.subx.html#L151' > _test-stream< / a > /imm32
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< span id = "L300" class = "LineNr" > 300 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L301" class = "LineNr" > 301 < / span > e8/call < a href = '106stream.subx.html#L17' > clear-stream< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L302" class = "LineNr" > 302 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L303" class = "LineNr" > 303 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L304" class = "LineNr" > 304 < / span > < span class = "subxS1Comment" > # . clear-stream($_test-buffered-file-> buffer)< / span >
2019-12-09 09:26:58 +00:00
< span id = "L305" class = "LineNr" > 305 < / span > < span class = "subxS2Comment" > # . . push args< / span >
2020-06-12 14:57:27 +00:00
< span id = "L306" class = "LineNr" > 306 < / span > 68/push $_test-buffered-file-> buffer/imm32
2019-12-09 09:26:58 +00:00
< span id = "L307" class = "LineNr" > 307 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L308" class = "LineNr" > 308 < / span > e8/call < a href = '106stream.subx.html#L17' > clear-stream< / a > /disp32
2019-12-09 09:26:58 +00:00
< span id = "L309" class = "LineNr" > 309 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L310" class = "LineNr" > 310 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
2020-06-12 14:57:27 +00:00
< span id = "L311" class = "LineNr" > 311 < / span > < span class = "subxS1Comment" > # . clear-stream(_test-output-stream)< / span >
2019-12-09 09:26:58 +00:00
< span id = "L312" class = "LineNr" > 312 < / span > < span class = "subxS2Comment" > # . . push args< / span >
2021-03-24 00:31:08 +00:00
< span id = "L313" class = "LineNr" > 313 < / span > 68/push < a href = '115write-byte.subx.html#L287' > _test-output-stream< / a > /imm32
2019-12-09 09:26:58 +00:00
< span id = "L314" class = "LineNr" > 314 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L315" class = "LineNr" > 315 < / span > e8/call < a href = '106stream.subx.html#L17' > clear-stream< / a > /disp32
2019-12-09 09:26:58 +00:00
< span id = "L316" class = "LineNr" > 316 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L317" class = "LineNr" > 317 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
2020-06-12 14:57:27 +00:00
< span id = "L318" class = "LineNr" > 318 < / span > < span class = "subxS1Comment" > # . clear-stream(_test-error-stream)< / span >
2019-12-09 09:26:58 +00:00
< span id = "L319" class = "LineNr" > 319 < / span > < span class = "subxS2Comment" > # . . push args< / span >
2021-03-24 00:31:08 +00:00
< span id = "L320" class = "LineNr" > 320 < / span > 68/push < a href = '115write-byte.subx.html#L438' > _test-error-stream< / a > /imm32
2019-12-09 09:26:58 +00:00
< span id = "L321" class = "LineNr" > 321 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L322" class = "LineNr" > 322 < / span > e8/call < a href = '106stream.subx.html#L17' > clear-stream< / a > /disp32
2019-12-09 09:26:58 +00:00
< span id = "L323" class = "LineNr" > 323 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L324" class = "LineNr" > 324 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
2020-06-12 14:57:27 +00:00
< span id = "L325" class = "LineNr" > 325 < / span > < span class = "subxComment" > # initialize 'in'< / span >
< span id = "L326" class = "LineNr" > 326 < / span > < span class = "subxS1Comment" > # . write(_test-stream, " 3" )< / span >
< span id = "L327" class = "LineNr" > 327 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L328" class = "LineNr" > 328 < / span > 68/push < span class = "Constant" > " 3" < / span > /imm32
2021-03-24 00:31:08 +00:00
< span id = "L329" class = "LineNr" > 329 < / span > 68/push < a href = '108write.subx.html#L151' > _test-stream< / a > /imm32
2020-06-12 14:57:27 +00:00
< span id = "L330" class = "LineNr" > 330 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L331" class = "LineNr" > 331 < / span > e8/call < a href = '108write.subx.html#L24' > write< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L332" class = "LineNr" > 332 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L333" class = "LineNr" > 333 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L334" class = "LineNr" > 334 < / span > < span class = "subxComment" > # initialize exit-descriptor 'ed' for the call to 'get-num' below< / span >
< span id = "L335" class = "LineNr" > 335 < / span > < span class = "subxS1Comment" > # . var ed/eax: exit-descriptor< / span >
< span id = "L336" class = "LineNr" > 336 < / span > 81 5/subop/subtract 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # subtract from esp< / span >
< span id = "L337" class = "LineNr" > 337 < / span > 89/copy 3/mod/direct 0/rm32/eax < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/r32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy esp to eax< / span >
< span id = "L338" class = "LineNr" > 338 < / span > < span class = "subxS1Comment" > # . tailor-exit-descriptor(ed, 16)< / span >
< span id = "L339" class = "LineNr" > 339 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L340" class = "LineNr" > 340 < / span > 68/push 0x10/imm32/nbytes-of-args-for-get-num
< span id = "L341" class = "LineNr" > 341 < / span > 50/push-eax/ed
< span id = "L342" class = "LineNr" > 342 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L343" class = "LineNr" > 343 < / span > e8/call < a href = '110stop.subx.html#L44' > tailor-exit-descriptor< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L344" class = "LineNr" > 344 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L345" class = "LineNr" > 345 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L346" class = "LineNr" > 346 < / span > < span class = "subxComment" > # prime the pump< / span >
< span id = "L347" class = "LineNr" > 347 < / span > < span class = "subxS1Comment" > # . get-char(_test-buffered-file)< / span >
< span id = "L348" class = "LineNr" > 348 < / span > < span class = "subxS2Comment" > # . . push args< / span >
2021-03-24 00:31:08 +00:00
< span id = "L349" class = "LineNr" > 349 < / span > 68/push < a href = '112read-byte.subx.html#L318' > _test-buffered-file< / a > /imm32
2020-06-12 14:57:27 +00:00
< span id = "L350" class = "LineNr" > 350 < / span > < span class = "subxS2Comment" > # . . call< / span >
< span id = "L351" class = "LineNr" > 351 < / span > e8/call < a href = 'crenshaw2-1.subx.html#L508' > get-char< / a > /disp32
< span id = "L352" class = "LineNr" > 352 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L353" class = "LineNr" > 353 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L354" class = "LineNr" > 354 < / span > < span class = "subxComment" > # get-num(in, out, err, ed)< / span >
2019-12-09 09:26:58 +00:00
< span id = "L355" class = "LineNr" > 355 < / span > < span class = "subxS2Comment" > # . . push args< / span >
2020-06-12 14:57:27 +00:00
< span id = "L356" class = "LineNr" > 356 < / span > 50/push-eax/ed
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< span id = "L357" class = "LineNr" > 357 < / span > 68/push < a href = '115write-byte.subx.html#L438' > _test-error-stream< / a > /imm32
< span id = "L358" class = "LineNr" > 358 < / span > 68/push < a href = '115write-byte.subx.html#L287' > _test-output-stream< / a > /imm32
< span id = "L359" class = "LineNr" > 359 < / span > 68/push < a href = '112read-byte.subx.html#L318' > _test-buffered-file< / a > /imm32
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< span id = "L360" class = "LineNr" > 360 < / span > < span class = "subxS2Comment" > # . . call< / span >
< span id = "L361" class = "LineNr" > 361 < / span > e8/call < a href = 'crenshaw2-1.subx.html#L187' > get-num< / a > /disp32
< span id = "L362" class = "LineNr" > 362 < / span > < span class = "subxComment" > # registers except esp may be clobbered at this point< / span >
< span id = "L363" class = "LineNr" > 363 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L364" class = "LineNr" > 364 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0x10/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L365" class = "LineNr" > 365 < / span > < span class = "subxComment" > # check-ints-equal(*_test-output-stream-> data, '3', msg)< / span >
< span id = "L366" class = "LineNr" > 366 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L367" class = "LineNr" > 367 < / span > 68/push < span class = "Constant" > " F - test-get-num-reads-single-digit" < / span > /imm32
< span id = "L368" class = "LineNr" > 368 < / span > 68/push 0x33/imm32
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< span id = "L369" class = "LineNr" > 369 < / span > b8/copy-to-eax < a href = '115write-byte.subx.html#L287' > _test-output-stream< / a > /imm32
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< span id = "L370" class = "LineNr" > 370 < / span > ff 6/subop/push 1/mod/*+disp8 0/rm32/eax < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(eax+12)< / span >
< span id = "L371" class = "LineNr" > 371 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L372" class = "LineNr" > 372 < / span > e8/call < a href = '102test.subx.html#L23' > check-ints-equal< / a > /disp32
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< span id = "L373" class = "LineNr" > 373 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L374" class = "LineNr" > 374 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L375" class = "LineNr" > 375 < / span > < span class = "subxS1Comment" > # . reclaim locals< / span >
< span id = "L376" class = "LineNr" > 376 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L377" class = "LineNr" > 377 < / span > 5d/pop-to-ebp
< span id = "L378" class = "LineNr" > 378 < / span > c3/return
< span id = "L379" class = "LineNr" > 379 < / span >
< span id = "L380" class = "LineNr" > 380 < / span > < span class = "subxTest" > test-get-num-aborts-on-non-digit-in-Look< / span > :
< span id = "L381" class = "LineNr" > 381 < / span > < span class = "subxH1Comment" > # - check that get-num returns first character if it's a digit< / span >
< span id = "L382" class = "LineNr" > 382 < / span > < span class = "subxComment" > # This test uses exit-descriptors. Use ebp for setting up local variables.< / span >
< span id = "L383" class = "LineNr" > 383 < / span > 55/push-ebp
< span id = "L384" class = "LineNr" > 384 < / span > 89/copy 3/mod/direct 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/r32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy esp to ebp< / span >
< span id = "L385" class = "LineNr" > 385 < / span > < span class = "subxComment" > # clear all streams< / span >
< span id = "L386" class = "LineNr" > 386 < / span > < span class = "subxS1Comment" > # . clear-stream(_test-stream)< / span >
< span id = "L387" class = "LineNr" > 387 < / span > < span class = "subxS2Comment" > # . . push args< / span >
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< span id = "L388" class = "LineNr" > 388 < / span > 68/push < a href = '108write.subx.html#L151' > _test-stream< / a > /imm32
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< span id = "L389" class = "LineNr" > 389 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L390" class = "LineNr" > 390 < / span > e8/call < a href = '106stream.subx.html#L17' > clear-stream< / a > /disp32
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< span id = "L391" class = "LineNr" > 391 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L392" class = "LineNr" > 392 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L393" class = "LineNr" > 393 < / span > < span class = "subxS1Comment" > # . clear-stream($_test-buffered-file-> buffer)< / span >
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< span id = "L394" class = "LineNr" > 394 < / span > < span class = "subxS2Comment" > # . . push args< / span >
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< span id = "L395" class = "LineNr" > 395 < / span > 68/push $_test-buffered-file-> buffer/imm32
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< span id = "L396" class = "LineNr" > 396 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L397" class = "LineNr" > 397 < / span > e8/call < a href = '106stream.subx.html#L17' > clear-stream< / a > /disp32
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< span id = "L398" class = "LineNr" > 398 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L399" class = "LineNr" > 399 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
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< span id = "L400" class = "LineNr" > 400 < / span > < span class = "subxS1Comment" > # . clear-stream(_test-output-stream)< / span >
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< span id = "L401" class = "LineNr" > 401 < / span > < span class = "subxS2Comment" > # . . push args< / span >
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< span id = "L402" class = "LineNr" > 402 < / span > 68/push < a href = '115write-byte.subx.html#L287' > _test-output-stream< / a > /imm32
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< span id = "L403" class = "LineNr" > 403 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L404" class = "LineNr" > 404 < / span > e8/call < a href = '106stream.subx.html#L17' > clear-stream< / a > /disp32
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< span id = "L405" class = "LineNr" > 405 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L406" class = "LineNr" > 406 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
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< span id = "L407" class = "LineNr" > 407 < / span > < span class = "subxS1Comment" > # . clear-stream(_test-error-stream)< / span >
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< span id = "L408" class = "LineNr" > 408 < / span > < span class = "subxS2Comment" > # . . push args< / span >
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< span id = "L409" class = "LineNr" > 409 < / span > 68/push < a href = '115write-byte.subx.html#L438' > _test-error-stream< / a > /imm32
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< span id = "L410" class = "LineNr" > 410 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L411" class = "LineNr" > 411 < / span > e8/call < a href = '106stream.subx.html#L17' > clear-stream< / a > /disp32
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< span id = "L412" class = "LineNr" > 412 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L413" class = "LineNr" > 413 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
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< span id = "L414" class = "LineNr" > 414 < / span > < span class = "subxComment" > # initialize 'in'< / span >
< span id = "L415" class = "LineNr" > 415 < / span > < span class = "subxS1Comment" > # . write(_test-stream, " 3" )< / span >
< span id = "L416" class = "LineNr" > 416 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L417" class = "LineNr" > 417 < / span > 68/push < span class = "Constant" > " 3" < / span > /imm32
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< span id = "L418" class = "LineNr" > 418 < / span > 68/push < a href = '108write.subx.html#L151' > _test-stream< / a > /imm32
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< span id = "L419" class = "LineNr" > 419 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L420" class = "LineNr" > 420 < / span > e8/call < a href = '108write.subx.html#L24' > write< / a > /disp32
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< span id = "L421" class = "LineNr" > 421 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L422" class = "LineNr" > 422 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L423" class = "LineNr" > 423 < / span > < span class = "subxComment" > # initialize exit-descriptor 'ed' for the call to 'get-num' below< / span >
< span id = "L424" class = "LineNr" > 424 < / span > < span class = "subxS1Comment" > # . var ed/eax: exit-descriptor< / span >
< span id = "L425" class = "LineNr" > 425 < / span > 81 5/subop/subtract 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # subtract from esp< / span >
< span id = "L426" class = "LineNr" > 426 < / span > 89/copy 3/mod/direct 0/rm32/eax < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/r32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy esp to eax< / span >
< span id = "L427" class = "LineNr" > 427 < / span > < span class = "subxS1Comment" > # . tailor-exit-descriptor(ed, 16)< / span >
< span id = "L428" class = "LineNr" > 428 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L429" class = "LineNr" > 429 < / span > 68/push 0x10/imm32/nbytes-of-args-for-get-num
< span id = "L430" class = "LineNr" > 430 < / span > 50/push-eax/ed
< span id = "L431" class = "LineNr" > 431 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L432" class = "LineNr" > 432 < / span > e8/call < a href = '110stop.subx.html#L44' > tailor-exit-descriptor< / a > /disp32
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< span id = "L433" class = "LineNr" > 433 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L434" class = "LineNr" > 434 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L435" class = "LineNr" > 435 < / span > < span class = "subxComment" > # *don't* prime the pump< / span >
< span id = "L436" class = "LineNr" > 436 < / span > < span class = "subxComment" > # get-num(in, out, err, ed)< / span >
< span id = "L437" class = "LineNr" > 437 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L438" class = "LineNr" > 438 < / span > 50/push-eax/ed
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< span id = "L439" class = "LineNr" > 439 < / span > 68/push < a href = '115write-byte.subx.html#L438' > _test-error-stream< / a > /imm32
< span id = "L440" class = "LineNr" > 440 < / span > 68/push < a href = '115write-byte.subx.html#L287' > _test-output-stream< / a > /imm32
< span id = "L441" class = "LineNr" > 441 < / span > 68/push < a href = '112read-byte.subx.html#L318' > _test-buffered-file< / a > /imm32
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< span id = "L442" class = "LineNr" > 442 < / span > < span class = "subxS2Comment" > # . . call< / span >
< span id = "L443" class = "LineNr" > 443 < / span > e8/call < a href = 'crenshaw2-1.subx.html#L187' > get-num< / a > /disp32
< span id = "L444" class = "LineNr" > 444 < / span > < span class = "subxComment" > # registers except esp may be clobbered at this point< / span >
< span id = "L445" class = "LineNr" > 445 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L446" class = "LineNr" > 446 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0x10/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L447" class = "LineNr" > 447 < / span > < span class = "subxComment" > # check that get-num tried to call exit(1)< / span >
< span id = "L448" class = "LineNr" > 448 < / span > < span class = "subxS1Comment" > # . check-ints-equal(ed-> value, 2, msg) # i.e. stop was called with value 1< / span >
< span id = "L449" class = "LineNr" > 449 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L450" class = "LineNr" > 450 < / span > 68/push < span class = "Constant" > " F - test-get-num-aborts-on-non-digit-in-Look" < / span > /imm32
< span id = "L451" class = "LineNr" > 451 < / span > 68/push 2/imm32
< span id = "L452" class = "LineNr" > 452 < / span > < span class = "subxS2Comment" > # . . push ed-> value< / span >
< span id = "L453" class = "LineNr" > 453 < / span > ff 6/subop/push 1/mod/*+disp8 0/rm32/eax < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(eax+4)< / span >
< span id = "L454" class = "LineNr" > 454 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L455" class = "LineNr" > 455 < / span > e8/call < a href = '102test.subx.html#L23' > check-ints-equal< / a > /disp32
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< span id = "L456" class = "LineNr" > 456 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L457" class = "LineNr" > 457 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L458" class = "LineNr" > 458 < / span > < span class = "subxS1Comment" > # . reclaim locals< / span >
< span id = "L459" class = "LineNr" > 459 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L460" class = "LineNr" > 460 < / span > 5d/pop-to-ebp
< span id = "L461" class = "LineNr" > 461 < / span > c3/return
< span id = "L462" class = "LineNr" > 462 < / span >
< span id = "L463" class = "LineNr" > 463 < / span > < span class = "subxComment" > ## helpers< / span >
< span id = "L464" class = "LineNr" > 464 < / span >
< span id = "L465" class = "LineNr" > 465 < / span > < span class = "subxComment" > # write(f, " Error: " +s+" expected\n" ) then stop(ed, 1)< / span >
< span id = "L466" class = "LineNr" > 466 < / span > < span class = "subxFunction" > expected< / span > : < span class = "subxComment" > # ed: (addr exit-descriptor), f: fd or (addr stream byte), s: (addr array byte)< / span >
< span id = "L467" class = "LineNr" > 467 < / span > < span class = "subxS1Comment" > # . prologue< / span >
< span id = "L468" class = "LineNr" > 468 < / span > 55/push-ebp
< span id = "L469" class = "LineNr" > 469 < / span > 89/copy 3/mod/direct 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/r32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy esp to ebp< / span >
< span id = "L470" class = "LineNr" > 470 < / span > < span class = "subxComment" > # write(f, " Error: " )< / span >
< span id = "L471" class = "LineNr" > 471 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L472" class = "LineNr" > 472 < / span > 68/push < span class = "Constant" > " Error: " < / span > /imm32
< span id = "L473" class = "LineNr" > 473 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+12)< / span >
< span id = "L474" class = "LineNr" > 474 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L475" class = "LineNr" > 475 < / span > e8/call < a href = '108write.subx.html#L24' > write< / a > /disp32
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< span id = "L476" class = "LineNr" > 476 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L477" class = "LineNr" > 477 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L478" class = "LineNr" > 478 < / span > < span class = "subxComment" > # write(f, s)< / span >
< span id = "L479" class = "LineNr" > 479 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L480" class = "LineNr" > 480 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0x10/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+16)< / span >
< span id = "L481" class = "LineNr" > 481 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+12)< / span >
< span id = "L482" class = "LineNr" > 482 < / span > < span class = "subxS2Comment" > # . . call< / span >
2021-03-24 00:31:08 +00:00
< span id = "L483" class = "LineNr" > 483 < / span > e8/call < a href = '108write.subx.html#L24' > write< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L484" class = "LineNr" > 484 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L485" class = "LineNr" > 485 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L486" class = "LineNr" > 486 < / span > < span class = "subxComment" > # write(f, " expected\n" )< / span >
< span id = "L487" class = "LineNr" > 487 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L488" class = "LineNr" > 488 < / span > 68/push < span class = "Constant" > " expected\n" < / span > /imm32
< span id = "L489" class = "LineNr" > 489 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0xc/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+12)< / span >
< span id = "L490" class = "LineNr" > 490 < / span > < span class = "subxS2Comment" > # . . call< / span >
2021-03-24 00:31:08 +00:00
< span id = "L491" class = "LineNr" > 491 < / span > e8/call < a href = '108write.subx.html#L24' > write< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L492" class = "LineNr" > 492 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L493" class = "LineNr" > 493 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L494" class = "LineNr" > 494 < / span > < span class = "subxComment" > # stop(ed, 1)< / span >
< span id = "L495" class = "LineNr" > 495 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L496" class = "LineNr" > 496 < / span > 68/push 1/imm32
< span id = "L497" class = "LineNr" > 497 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+8)< / span >
< span id = "L498" class = "LineNr" > 498 < / span > < span class = "subxS2Comment" > # . . call< / span >
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< span id = "L499" class = "LineNr" > 499 < / span > e8/call < a href = '110stop.subx.html#L92' > stop< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L500" class = "LineNr" > 500 < / span > < span class = "subxComment" > # should never get past this point< / span >
< span id = "L501" class = "LineNr" > 501 < / span > < span class = "Constant" > $expected:dead-end< / span > :
< span id = "L502" class = "LineNr" > 502 < / span > < span class = "subxS1Comment" > # . epilogue< / span >
< span id = "L503" class = "LineNr" > 503 < / span > 89/copy 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 5/r32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy ebp to esp< / span >
< span id = "L504" class = "LineNr" > 504 < / span > 5d/pop-to-ebp
< span id = "L505" class = "LineNr" > 505 < / span > c3/return
< span id = "L506" class = "LineNr" > 506 < / span >
< span id = "L507" class = "LineNr" > 507 < / span > < span class = "subxComment" > # read a byte from 'f', and save it in 'Look'< / span >
< span id = "L508" class = "LineNr" > 508 < / span > < span class = "subxFunction" > get-char< / span > : < span class = "subxComment" > # f: (addr buffered-file)< / span >
< span id = "L509" class = "LineNr" > 509 < / span > < span class = "subxS1Comment" > # . prologue< / span >
< span id = "L510" class = "LineNr" > 510 < / span > 55/push-ebp
< span id = "L511" class = "LineNr" > 511 < / span > 89/copy 3/mod/direct 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/r32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy esp to ebp< / span >
< span id = "L512" class = "LineNr" > 512 < / span > < span class = "subxS1Comment" > # . save registers< / span >
< span id = "L513" class = "LineNr" > 513 < / span > 50/push-eax
< span id = "L514" class = "LineNr" > 514 < / span > < span class = "subxComment" > # eax = read-byte-buffered(f)< / span >
< span id = "L515" class = "LineNr" > 515 < / span > < span class = "subxS2Comment" > # . . push args< / span >
< span id = "L516" class = "LineNr" > 516 < / span > ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/disp8 < span class = "Normal" > . < / span > < span class = "subxComment" > # push *(ebp+8)< / span >
< span id = "L517" class = "LineNr" > 517 < / span > < span class = "subxS2Comment" > # . . call< / span >
2021-03-24 00:31:08 +00:00
< span id = "L518" class = "LineNr" > 518 < / span > e8/call < a href = '112read-byte.subx.html#L38' > read-byte-buffered< / a > /disp32
2020-06-12 14:57:27 +00:00
< span id = "L519" class = "LineNr" > 519 < / span > < span class = "subxS2Comment" > # . . discard args< / span >
< span id = "L520" class = "LineNr" > 520 < / span > 81 0/subop/add 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/imm32 < span class = "subxComment" > # add to esp< / span >
< span id = "L521" class = "LineNr" > 521 < / span > < span class = "subxComment" > # save eax to Look< / span >
< span id = "L522" class = "LineNr" > 522 < / span > 89/copy 0/mod/indirect 5/rm32/.disp32 < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 0/r32/eax < span class = "SpecialChar" > < a href = 'crenshaw2-1.subx.html#L553' > Look< / a > < / span > /disp32 < span class = "Normal" > . < / span > < span class = "subxComment" > # copy eax to *Look< / span >
< span id = "L523" class = "LineNr" > 523 < / span > < span class = "Constant" > $get-char:end< / span > :
< span id = "L524" class = "LineNr" > 524 < / span > < span class = "subxS1Comment" > # . restore registers< / span >
< span id = "L525" class = "LineNr" > 525 < / span > 58/pop-to-eax
< span id = "L526" class = "LineNr" > 526 < / span > < span class = "subxS1Comment" > # . epilogue< / span >
< span id = "L527" class = "LineNr" > 527 < / span > 89/copy 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 5/r32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy ebp to esp< / span >
< span id = "L528" class = "LineNr" > 528 < / span > 5d/pop-to-ebp
< span id = "L529" class = "LineNr" > 529 < / span > c3/return
< span id = "L530" class = "LineNr" > 530 < / span >
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< span id = "L531" class = "LineNr" > 531 < / span > < span class = "subxFunction" > digit?< / span > : < span class = "subxComment" > # c: int -> eax: boolean< / span >
2020-06-12 14:57:27 +00:00
< span id = "L532" class = "LineNr" > 532 < / span > < span class = "subxS1Comment" > # . prologue< / span >
< span id = "L533" class = "LineNr" > 533 < / span > 55/push-ebp
< span id = "L534" class = "LineNr" > 534 < / span > 89/copy 3/mod/direct 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 4/r32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy esp to ebp< / span >
< span id = "L535" class = "LineNr" > 535 < / span > < span class = "subxComment" > # eax = false< / span >
< span id = "L536" class = "LineNr" > 536 < / span > b8/copy-to-eax 0/imm32
< span id = "L537" class = "LineNr" > 537 < / span > < span class = "subxComment" > # if (c < '0') return false< / span >
< span id = "L538" class = "LineNr" > 538 < / span > 81 7/subop/compare 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/disp8 0x30/imm32 < span class = "subxComment" > # compare *(ebp+8)< / span >
2021-03-24 00:31:08 +00:00
< span id = "L539" class = "LineNr" > 539 < / span > 7c/jump-if-< $digit?:end/disp8
2020-06-12 14:57:27 +00:00
< span id = "L540" class = "LineNr" > 540 < / span > < span class = "subxComment" > # if (c > '9') return false< / span >
< span id = "L541" class = "LineNr" > 541 < / span > 81 7/subop/compare 1/mod/*+disp8 5/rm32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 8/disp8 0x39/imm32 < span class = "subxComment" > # compare *(ebp+8)< / span >
2021-03-24 00:31:08 +00:00
< span id = "L542" class = "LineNr" > 542 < / span > 7f/jump-if-> $digit?:end/disp8
2020-06-12 14:57:27 +00:00
< span id = "L543" class = "LineNr" > 543 < / span > < span class = "subxComment" > # otherwise return true< / span >
< span id = "L544" class = "LineNr" > 544 < / span > b8/copy-to-eax 1/imm32
2021-03-24 00:31:08 +00:00
< span id = "L545" class = "LineNr" > 545 < / span > < span class = "Constant" > $digit?:end< / span > :
2020-06-12 14:57:27 +00:00
< span id = "L546" class = "LineNr" > 546 < / span > < span class = "subxS1Comment" > # . epilogue< / span >
< span id = "L547" class = "LineNr" > 547 < / span > 89/copy 3/mod/direct 4/rm32/esp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > 5/r32/ebp < span class = "Normal" > . < / span > < span class = "Normal" > . < / span > < span class = "subxComment" > # copy ebp to esp< / span >
< span id = "L548" class = "LineNr" > 548 < / span > 5d/pop-to-ebp
< span id = "L549" class = "LineNr" > 549 < / span > c3/return
< span id = "L550" class = "LineNr" > 550 < / span >
< span id = "L551" class = "LineNr" > 551 < / span > == data
< span id = "L552" class = "LineNr" > 552 < / span >
< span id = "L553" class = "LineNr" > 553 < / span > < span class = "SpecialChar" > Look< / span > : < span class = "subxComment" > # (char with some extra padding)< / span >
< span id = "L554" class = "LineNr" > 554 < / span > 0/imm32
< span id = "L555" class = "LineNr" > 555 < / span >
< span id = "L556" class = "LineNr" > 556 < / span > < span class = "subxS2Comment" > # . . vim: nowrap:textwidth=0< / span >
2018-09-22 07:32:03 +00:00
< / pre >
< / body >
< / html >
<!-- vim: set foldmethod=manual : -->