2019-04-05 06:25:35 +00:00
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# Read a series of segments from stdin and concatenate segments with the same
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# name on stdout.
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#
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# Segments are emitted in order of first encounter.
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#
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# Drop lines that are all comments. They could get misleading after assortment
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# because we don't know if they refer to the line above or the line below.
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#
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# To run (from the subx/ directory):
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# $ ./subx translate *.subx apps/assort.subx -o apps/assort
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# $ cat x
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# == code
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# abc
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# == code
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# def
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# $ cat x |./subx run apps/assort
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# == code
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# abc
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# def
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== code
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# instruction effective address register displacement immediate
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# . op subop mod rm32 base index scale r32
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# . 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
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Entry: # run tests if necessary, convert stdin if not
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# for debugging: run a single test
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2019-04-06 07:08:32 +00:00
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#? e8/call test-get-or-insert-segment/disp32
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#? e8/call test-slice-equal-with-null/disp32
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2019-04-05 06:25:35 +00:00
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#? 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num-test-failures/disp32 # copy *Num-test-failures to EBX
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#? eb/jump $main:end/disp8
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# . prolog
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89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
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# - if argc > 1 and argv[1] == "test", then return run_tests()
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# . argc > 1
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81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 0/disp8 1/imm32 # compare *EBP
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7e/jump-if-lesser-or-equal $run-main/disp8
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# . argv[1] == "test"
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# . . push args
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68/push "test"/imm32
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ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
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# . . call
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e8/call kernel-string-equal?/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . check result
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3d/compare-EAX-and 1/imm32
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75/jump-if-not-equal $run-main/disp8
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# . run-tests()
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e8/call run-tests/disp32
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8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num-test-failures/disp32 # copy *Num-test-failures to EBX
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eb/jump $main:end/disp8
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$run-main:
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# - otherwise convert stdin
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# var ed/EAX : exit-descriptor
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81 5/subop/subtract 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # subtract from ESP
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89/copy 3/mod/direct 0/rm32/EAX . . . 4/r32/ESP . . # copy ESP to EAX
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# configure ed to really exit()
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# . ed->target = 0
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c7 0/subop/copy 0/mod/direct 0/rm32/EAX . . . . . 0/imm32 # copy to *EAX
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# return convert(Stdin, 1/stdout, 2/stderr, ed)
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# . . push args
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50/push-EAX/ed
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68/push Stderr/imm32
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68/push Stdout/imm32
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68/push Stdin/imm32
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# . . call
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e8/call convert/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0x10/imm32 # add to ESP
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# . syscall(exit, 0)
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bb/copy-to-EBX 0/imm32
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$main:end:
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b8/copy-to-EAX 1/imm32/exit
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cd/syscall 0x80/imm8
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# data structure:
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# row: pair of (address array byte) and (address stream byte)
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# table: (address stream row)
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convert: # in : (address buffered-file), out : (address buffered-file) -> <void>
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# pseudocode:
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2019-04-06 07:08:32 +00:00
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# var table : (address stream) = new-stream(10 rows, 8 bytes each)
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2019-04-05 06:25:35 +00:00
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# read-segments(in, table)
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# write-segments(out, table)
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#
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# . prolog
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55/push-EBP
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89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
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# . save registers
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51/push-ECX
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# var table/ECX : (address stream byte) = stream(10 * 8)
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81 5/subop/subtract 3/mod/direct 4/rm32/ESP . . . . . 0x50/imm32 # subtract from ESP
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68/push 0x50/imm32/length
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68/push 0/imm32/read
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68/push 0/imm32/write
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89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
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# clear-stream(table)
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# . . push args
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51/push-ECX
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# . . call
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e8/call clear-stream/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
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$convert:read:
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# read-segments(in, table)
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# . . push args
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51/push-ECX
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ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
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# . . call
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e8/call read-segments/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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$convert:write:
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# write-segments(out, table)
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# . . push args
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51/push-ECX
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ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
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# . . call
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e8/call write-segments/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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$convert:end:
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# . reclaim locals
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0x5c/imm32 # add to ESP
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# . restore registers
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59/pop-to-ECX
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# . epilog
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89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
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5d/pop-to-EBP
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c3/return
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test-convert:
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# . prolog
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55/push-EBP
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89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
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# setup
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# . clear-stream(_test-input-stream)
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# . . push args
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68/push _test-input-stream/imm32
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# . . call
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e8/call clear-stream/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
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# . clear-stream(_test-input-buffered-file+4)
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# . . push args
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b8/copy-to-EAX _test-input-buffered-file/imm32
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05/add-to-EAX 4/imm32
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50/push-EAX
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# . . call
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e8/call clear-stream/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
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# . clear-stream(_test-output-stream)
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# . . push args
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68/push _test-output-stream/imm32
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# . . call
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e8/call clear-stream/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
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# . clear-stream(_test-output-buffered-file+4)
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# . . push args
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b8/copy-to-EAX _test-output-buffered-file/imm32
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05/add-to-EAX 4/imm32
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50/push-EAX
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# . . call
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e8/call clear-stream/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
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# initialize input (meta comments in parens)
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# # comment 1
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# # comment 2 indented
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# == code (new segment)
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# # comment 3 inside a segment
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# 1
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# (empty line)
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# 2 3 # comment 4 inline with other contents
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# == data (new segment)
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# 4 5/imm32
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# == code (existing segment but non-contiguous with previous iteration)
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# 6 7
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# 8 9 (multiple lines)
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# == code (existing segment contiguous with previous iteration)
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# 10 11
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# . write(_test-input-stream, "# comment 1")
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# . . push args
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68/push "# comment 1"/imm32
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68/push _test-input-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . write(_test-input-stream, "\n")
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# . . push args
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68/push Newline/imm32
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68/push _test-input-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . write(_test-input-stream, " # comment 2 indented")
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# . . push args
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68/push " # comment 2 indented"/imm32
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68/push _test-input-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . write(_test-input-stream, "\n")
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# . . push args
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68/push Newline/imm32
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68/push _test-input-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . write(_test-input-stream, "== code")
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# . . push args
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68/push "== code"/imm32
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68/push _test-input-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . write(_test-input-stream, "\n")
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# . . push args
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68/push Newline/imm32
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68/push _test-input-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . write(_test-input-stream, "# comment 3 inside a segment")
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# . . push args
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68/push "# comment 3 inside a segment"/imm32
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68/push _test-input-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . write(_test-input-stream, "\n")
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# . . push args
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68/push Newline/imm32
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68/push _test-input-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . write(_test-input-stream, "1")
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# . . push args
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68/push "1"/imm32
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68/push _test-input-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . write(_test-input-stream, "\n")
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# . . push args
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68/push Newline/imm32
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68/push _test-input-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . write(_test-input-stream, "\n") # empty line
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# . . push args
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68/push Newline/imm32
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68/push _test-input-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . write(_test-input-stream, "2 3 # comment 4 inline with other comments")
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# . . push args
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68/push "2 3 # comment 4 inline with other comments"/imm32
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68/push _test-input-stream/imm32
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# . . call
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e8/call write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . write(_test-input-stream, "\n")
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# . . push args
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68/push Newline/imm32
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68/push _test-input-stream/imm32
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# . . call
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|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "== data")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "== data"/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "\n")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push Newline/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "4 5/imm32")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "4 5/imm32"/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "\n")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push Newline/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "== code")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "== code"/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "\n")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push Newline/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "6 7")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "6 7"/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "\n")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push Newline/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "8 9")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "6 7"/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "\n")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push Newline/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "== code")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "== code"/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "\n")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push Newline/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "10 11")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "10 11"/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . write(_test-input-stream, "\n")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push Newline/imm32
|
|
|
|
|
68/push _test-input-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# convert(_test-input-buffered-file, _test-output-buffered-file)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push _test-output-buffered-file/imm32
|
|
|
|
|
68/push _test-input-buffered-file/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call convert/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# check output
|
|
|
|
|
# == code
|
|
|
|
|
# 1
|
|
|
|
|
# 2 3 # comment 4 inline with other contents
|
|
|
|
|
# 6 7
|
|
|
|
|
# 8 9
|
|
|
|
|
# 10 11
|
|
|
|
|
# == data
|
|
|
|
|
# 4 5/imm32
|
|
|
|
|
#? # debug print {{{
|
|
|
|
|
#? # . write(2/stderr, "^")
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push "^"/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # . write-stream(2/stderr, _test-output-stream)
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push _test-output-stream/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write-stream/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # . write(2/stderr, "$")
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push "$"/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # . write(2/stderr, "\n")
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push Newline/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # }}}
|
|
|
|
|
# . flush(_test-output-buffered-file)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push _test-output-buffered-file/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call flush/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
|
|
|
# . check-next-stream-line-equal(_test-output-stream, "== code", msg)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "F - test-convert-code-and-data-segments/0"/imm32
|
|
|
|
|
68/push "== code"/imm32
|
|
|
|
|
68/push _test-output-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call check-next-stream-line-equal/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
|
|
|
# . check-next-stream-line-equal(_test-output-stream, "1", msg)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "F - test-convert-code-and-data-segments/1"/imm32
|
|
|
|
|
68/push "e8 20 00 00 00 # e8/call 20/disp32"/imm32
|
|
|
|
|
68/push _test-output-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call check-next-stream-line-equal/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
|
|
|
# . check-next-stream-line-equal(_test-output-stream, "2 3 # comment 4 inline with other contents", msg)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "F - test-convert-code-and-data-segments/2"/imm32
|
|
|
|
|
68/push "2 3 # comment 4 inline with other contents"/imm32
|
|
|
|
|
68/push _test-output-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call check-next-stream-line-equal/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
|
|
|
# . check-next-stream-line-equal(_test-output-stream, "6 7", msg)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "F - test-convert-code-and-data-segments/3"/imm32
|
|
|
|
|
68/push "6 7"/imm32
|
|
|
|
|
68/push _test-output-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call check-next-stream-line-equal/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
|
|
|
# . check-next-stream-line-equal(_test-output-stream, "8 9", msg)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "F - test-convert-code-and-data-segments/4"/imm32
|
|
|
|
|
68/push "8 9"/imm32
|
|
|
|
|
68/push _test-output-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call check-next-stream-line-equal/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
|
|
|
# . check-next-stream-line-equal(_test-output-stream, "10 11", msg)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "F - test-convert-code-and-data-segments/5"/imm32
|
|
|
|
|
68/push "10 11"/imm32
|
|
|
|
|
68/push _test-output-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call check-next-stream-line-equal/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
|
|
|
# . check-next-stream-line-equal(_test-output-stream, "== data", msg)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "F - test-convert-code-and-data-segments/6"/imm32
|
|
|
|
|
68/push "== data"/imm32
|
|
|
|
|
68/push _test-output-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call check-next-stream-line-equal/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
|
|
|
# . check-next-stream-line-equal(_test-output-stream, "4 5/imm32", msg)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "F - test-convert-code-and-data-segments/4"/imm32
|
|
|
|
|
68/push "4 5/imm32"/imm32
|
|
|
|
|
68/push _test-output-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call check-next-stream-line-equal/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
|
|
|
# . epilog
|
|
|
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
|
|
|
5d/pop-to-EBP
|
|
|
|
|
c3/return
|
|
|
|
|
|
|
|
|
|
read-segments: # in : (address buffered-file), table : (address stream row)
|
|
|
|
|
# pseudocode:
|
|
|
|
|
# var curr-segment = null
|
|
|
|
|
# var line = new-stream(512, 1)
|
|
|
|
|
# while true
|
|
|
|
|
# clear-stream(line)
|
|
|
|
|
# read-line(in, line)
|
|
|
|
|
# if (line->write == 0) break # end of file
|
|
|
|
|
# var word-slice = next-word(line)
|
|
|
|
|
# if slice-empty?(word-slice) # whitespace
|
|
|
|
|
# continue
|
|
|
|
|
# if slice-starts-with?(word-slice, "#") # comment
|
|
|
|
|
# continue
|
|
|
|
|
# if (slice-equal?(word-slice, "=="))
|
|
|
|
|
# var segment-name = next-word(line)
|
2019-04-06 07:08:32 +00:00
|
|
|
# curr-segment = get-or-insert-segment(table, segment-name, N)
|
2019-04-05 06:25:35 +00:00
|
|
|
# else
|
|
|
|
|
# write-stream-data(curr-segment, line)
|
|
|
|
|
#
|
|
|
|
|
# . prolog
|
|
|
|
|
55/push-EBP
|
|
|
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
|
|
|
# . save registers
|
|
|
|
|
51/push-ECX
|
|
|
|
|
# var line/ECX : (address stream byte) = stream(512)
|
|
|
|
|
81 5/subop/subtract 3/mod/direct 4/rm32/ESP . . . . . 0x200/imm32 # subtract from ESP
|
|
|
|
|
68/push 0x200/imm32/length
|
|
|
|
|
68/push 0/imm32/read
|
|
|
|
|
68/push 0/imm32/write
|
|
|
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
|
|
|
# var word-slice/EDX = {0, 0}
|
|
|
|
|
68/push 0/imm32/end
|
|
|
|
|
68/push 0/imm32/curr
|
|
|
|
|
89/copy 3/mod/direct 2/rm32/EDX . . . 4/r32/ESP . . # copy ESP to EDX
|
|
|
|
|
# var curr-segment/EBX = null
|
|
|
|
|
31/xor 3/mod/direct 3/rm32/EBX . . . 3/r32/EBX . . # clear EBX
|
|
|
|
|
$read-segments:loop:
|
|
|
|
|
# clear-stream(line)
|
|
|
|
|
# . . push args
|
|
|
|
|
51/push-ECX
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call clear-stream/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
|
|
|
# read-line(in, line)
|
|
|
|
|
# . . push args
|
|
|
|
|
51/push-ECX
|
|
|
|
|
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call read-line/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
$read-segments:check0:
|
|
|
|
|
# if (line->write == 0) break
|
|
|
|
|
81 7/subop/compare 0/mod/indirect 1/rm32/ECX . . . . . 0/imm32 # compare *ECX
|
|
|
|
|
0f 84/jump-if-equal $read-segments:break/disp32
|
|
|
|
|
#? # dump line {{{
|
|
|
|
|
#? # . write(2/stderr, "LL: ")
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push "LL: "/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # . write-stream(2/stderr, line)
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 51/push-ECX
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write-stream/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # . write(2/stderr, "$")
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push "$"/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # . write(2/stderr, "\n")
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push Newline/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # }}}
|
|
|
|
|
# next-word(line, word-slice)
|
|
|
|
|
# . . push args
|
|
|
|
|
52/push-EDX
|
|
|
|
|
51/push-ECX
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call next-word/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
$read-segments:check1:
|
|
|
|
|
# if (slice-empty?(word-slice)) continue
|
|
|
|
|
# . EAX = slice-empty?(word-slice)
|
|
|
|
|
# . . push args
|
|
|
|
|
52/push-EDX
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call slice-empty?/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
|
|
|
# . if (EAX != 0) continue
|
|
|
|
|
3d/compare-EAX-and 0/imm32
|
|
|
|
|
0f 85/jump-if-not-equal $read-segments:loop/disp32
|
2019-04-06 16:27:45 +00:00
|
|
|
$read-segments:check-for-comment:
|
2019-04-05 06:25:35 +00:00
|
|
|
# if (slice-starts-with?(word-slice, "#"))
|
|
|
|
|
# . start/EDX = word-slice->start
|
|
|
|
|
8b/copy 0/mod/indirect 1/rm32/ECX . . . 2/r32/EDX . . # copy *ECX to EDX
|
|
|
|
|
# . c/EAX = *start
|
|
|
|
|
31/xor 3/mod/direct 0/rm32/EAX . . . 0/r32/EAX . . # clear EAX
|
|
|
|
|
8a/copy-byte 0/mod/indirect 2/rm32/EDX . . . 0/r32/AL . . # copy byte at *EDX to AL
|
|
|
|
|
# . if (EAX == '#') continue
|
|
|
|
|
3d/compare-EAX-and 0x23/imm32/hash
|
|
|
|
|
74/jump-if-equal $read-segments:loop/disp8
|
|
|
|
|
$read-segments:check-for-segment-header:
|
|
|
|
|
#? # dump word-slice {{{
|
|
|
|
|
#? # . write(2/stderr, "AA: ")
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push "AA: "/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # . clear-stream(Stderr+4)
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? b8/copy-to-EAX Stderr/imm32
|
|
|
|
|
#? 05/add-to-EAX 4/imm32
|
|
|
|
|
#? 50/push-EAX
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call clear-stream/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
|
|
|
#? # . write-slice(Stderr, word-slice)
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 52/push-EDX
|
|
|
|
|
#? 68/push Stderr/imm32
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write-slice/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # . flush(Stderr)
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push Stderr/imm32
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call flush/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
|
|
|
#? # . write(2/stderr, "$")
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push "$"/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # . write(2/stderr, "\n")
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push Newline/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # }}}
|
|
|
|
|
# if (slice-equal?(word-slice, "=="))
|
|
|
|
|
# segment-name = next-word(line)
|
|
|
|
|
# curr-segment = get-or-insert(table, segment-name)
|
|
|
|
|
# . EAX = slice-equal?(word-slice, "==")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "=="/imm32
|
|
|
|
|
52/push-EDX
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call slice-equal?/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . if (EAX == 0) goto check3
|
2019-04-06 07:08:32 +00:00
|
|
|
81 7/subop/compare 3/mod/direct 0/rm32/EAX . . . . . 0/imm32 # compare EAX
|
|
|
|
|
0f 84/jump-if-equal $read-segments:regular-line/disp32
|
2019-04-05 06:25:35 +00:00
|
|
|
# . next-word(line, segment-name)
|
|
|
|
|
# . . push args
|
|
|
|
|
52/push-EDX
|
|
|
|
|
51/push-ECX
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call next-word/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # dump segment name {{{
|
|
|
|
|
#? # . write(2/stderr, "AA: ")
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push "AA: "/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # . clear-stream(Stderr+4)
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? b8/copy-to-EAX Stderr/imm32
|
|
|
|
|
#? 05/add-to-EAX 4/imm32
|
|
|
|
|
#? 50/push-EAX
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call clear-stream/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
|
|
|
#? # . write-slice(Stderr, word-slice)
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 52/push-EDX
|
|
|
|
|
#? 68/push Stderr/imm32
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write-slice/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # . flush(Stderr)
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push Stderr/imm32
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call flush/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
|
|
|
#? # . write(2/stderr, "$")
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push "$"/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # . write(2/stderr, "\n")
|
|
|
|
|
#? # . . push args
|
|
|
|
|
#? 68/push Newline/imm32
|
|
|
|
|
#? 68/push 2/imm32/stderr
|
|
|
|
|
#? # . . call
|
|
|
|
|
#? e8/call write/disp32
|
|
|
|
|
#? # . . discard args
|
|
|
|
|
#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
#? # }}}
|
2019-04-06 07:08:32 +00:00
|
|
|
# . EAX = get-or-insert-segment(table, segment-name, N)
|
2019-04-05 06:25:35 +00:00
|
|
|
# . . push args
|
2019-04-06 07:08:32 +00:00
|
|
|
68/push 0x1000/imm32/segment-size/4KB
|
2019-04-05 06:25:35 +00:00
|
|
|
52/push-EDX
|
|
|
|
|
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
|
|
|
|
|
# . . call
|
2019-04-06 07:08:32 +00:00
|
|
|
e8/call get-or-insert-segment/disp32
|
2019-04-05 06:25:35 +00:00
|
|
|
# . . discard args
|
2019-04-06 07:08:32 +00:00
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
2019-04-05 06:25:35 +00:00
|
|
|
# . curr-segment = EAX
|
|
|
|
|
89/copy 3/mod/direct 3/rm32/EBX . . . 0/r32/EAX . . # copy EAX to EBX
|
|
|
|
|
# . continue
|
2019-04-06 07:08:32 +00:00
|
|
|
e9/jump $read-segments:loop/disp32
|
2019-04-05 06:25:35 +00:00
|
|
|
$read-segments:regular-line:
|
|
|
|
|
# write-stream-data(curr-segment, line)
|
|
|
|
|
# . . push args
|
|
|
|
|
51/push-ECX
|
|
|
|
|
53/push-EBX
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write-stream-data/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# loop
|
2019-04-06 07:08:32 +00:00
|
|
|
e9/jump $read-segments:loop/disp32
|
2019-04-05 06:25:35 +00:00
|
|
|
$read-segments:break:
|
|
|
|
|
$read-segments:end:
|
|
|
|
|
# . reclaim locals
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0x214/imm32 # add to ESP
|
|
|
|
|
# . restore registers
|
|
|
|
|
59/pop-to-ECX
|
|
|
|
|
# . epilog
|
|
|
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
|
|
|
5d/pop-to-EBP
|
|
|
|
|
c3/return
|
|
|
|
|
|
|
|
|
|
write-segments: # out : (address buffered-file), table : (address stream row)
|
|
|
|
|
# pseudocode:
|
|
|
|
|
# name, stream = table[0]
|
|
|
|
|
# var i = 0
|
|
|
|
|
# while i < table.length
|
|
|
|
|
# name = table[i].name
|
|
|
|
|
# if (name == null) break
|
|
|
|
|
# write-buffered(out, "== ")
|
|
|
|
|
# write-buffered(out, name)
|
|
|
|
|
# write-buffered(out, "\n")
|
|
|
|
|
# stream = table[i].stream
|
|
|
|
|
# write-stream-data(out, stream)
|
|
|
|
|
# ++i
|
|
|
|
|
# flush(out)
|
|
|
|
|
#
|
|
|
|
|
# . prolog
|
|
|
|
|
55/push-EBP
|
|
|
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
|
|
|
# . save registers
|
|
|
|
|
$write-segments:end:
|
|
|
|
|
# . reclaim locals
|
|
|
|
|
# . restore registers
|
|
|
|
|
# . epilog
|
|
|
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
|
|
|
5d/pop-to-EBP
|
|
|
|
|
c3/return
|
|
|
|
|
|
|
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## helpers
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2019-04-06 07:08:32 +00:00
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# TODO: pass in an allocation descriptor
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get-or-insert-segment: # table : (address stream row), s : (address slice), n : int -> EAX : (address stream)
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# pseudocode:
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# curr = table->data
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# max = &table->data[table->write]
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# while curr < max
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# if slice-equal?(s, *curr)
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# return *(curr+4)
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# curr += 8
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# if table->write < table->length
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# *max = slice-to-string(Heap, s)
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# result = new-stream(Heap, n, 1)
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# *(max+4) = result
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# table->write += 8
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# return result
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# return 0
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#
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# . prolog
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55/push-EBP
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89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
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# . save registers
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51/push-ECX
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52/push-EDX
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56/push-ESI
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# ESI = table
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8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI
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# curr/ECX = table->data
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8d/copy-address 1/mod/*+disp8 6/rm32/ESI . . . 1/r32/ECX 0xc/disp8 . # copy ESI+12 to ECX
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# max/EDX = table->data + table->write
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8b/copy 0/mod/indirect 6/rm32/ESI . . . 2/r32/EDX . . # copy *ESI to EDX
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8d/copy-address 0/mod/indirect 4/rm32/sib 1/base/ECX 2/index/EDX . 2/r32/EDX . . # copy ECX+EDX to EDX
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$get-or-insert-segment:search-loop:
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# if (curr >= max) break
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39/compare 3/mod/direct 1/rm32/ECX . . . 2/r32/EDX . . # compare ECX and EDX
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7d/jump-if-greater-or-equal $get-or-insert-segment:not-found/disp8
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# if (slice-equal?(s, *curr)) return *(curr+4)
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# . EAX = slice-equal?(s, *curr)
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# . . push args
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ff 6/subop/push 0/mod/indirect 1/rm32/ECX . . . . . . # push *ECX
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ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
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# . . call
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e8/call slice-equal?/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# curr += 8
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81 0/subop/add 3/mod/direct 1/rm32/ECX . . . . . 8/imm32 # add to ECX
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# loop
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eb/jump $get-or-insert-segment:search-loop/disp8
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$get-or-insert-segment:not-found:
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# result/EAX = 0
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31/xor 3/mod/direct 0/rm32/EAX . . . 0/r32/EAX . . # clear EAX
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# if (table->write >= table->length) abort
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8b/copy 0/mod/indirect 6/rm32/ESI . . . 1/r32/ECX . . # copy *ESI to ECX
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3b/compare 1/mod/*+disp8 6/rm32/ESI . . . 1/r32/ECX 8/disp8 . # compare ECX with *(ESI+8)
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7d/jump-if-greater-or-equal $get-or-insert-segment:abort/disp8
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# *max = slice-to-string(Heap, s)
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# . EAX = slice-to-string(Heap, s)
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# . . push args
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ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12)
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68/push Heap/imm32
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# . . call
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e8/call slice-to-string/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . *max = EAX <= writes to 0x0a003873
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89/copy 0/mod/indirect 2/rm32/EDX . . . 0/r32/EAX . . # copy EAX to *EDX
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# result/EAX = new-stream(Heap, n, 1)
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# . . push args
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68/push 1/imm32
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ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0x10/disp8 . # push *(EBP+16)
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68/push Heap/imm32
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# . . call
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e8/call new-stream/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
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# *(max+4) = result
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89/copy 1/mod/*+disp8 2/rm32/EDX . . . 0/r32/EAX 4/disp8 . # copy EAX to *(EDX+4)
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# table->write += 8
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81 0/subop/add 0/mod/indirect 6/rm32/ESI . . . . . 8/imm32 # add to *ESI
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$get-or-insert-segment:end:
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# . restore registers
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5e/pop-to-ESI
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5a/pop-to-EDX
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59/pop-to-ECX
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# . epilog
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89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
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5d/pop-to-EBP
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c3/return
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$get-or-insert-segment:abort:
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# . _write(2/stderr, error)
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# . . push args
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68/push "get-or-insert-segment: too many segments"/imm32
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68/push 2/imm32/stderr
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# . . call
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e8/call _write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . syscall(exit, 1)
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bb/copy-to-EBX 1/imm32
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b8/copy-to-EAX 1/imm32/exit
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cd/syscall 0x80/imm8
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# never gets here
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test-get-or-insert-segment:
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# . prolog
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55/push-EBP
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89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
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# var table/ECX : (address stream byte) = stream(2 * 8)
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81 5/subop/subtract 3/mod/direct 4/rm32/ESP . . . . . 0x10/imm32 # subtract from ESP
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68/push 0x10/imm32/length
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68/push 0/imm32/read
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68/push 0/imm32/write
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89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
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# var s/EDX : (address slice) = "code"
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68/push _test-code-segment-end/imm32/end
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68/push _test-code-segment/imm32/start
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89/copy 3/mod/direct 2/rm32/EDX . . . 4/r32/ESP . . # copy ESP to EDX
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# segment/EAX = get-or-insert-segment(table, s, 8)
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# . . push args
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68/push 8/imm32/segment-length
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52/push-EDX
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51/push-ECX
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# . . call
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e8/call get-or-insert-segment/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
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# if (segment != 0) goto next check
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3d/compare-EAX-and 0/imm32
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75/jump-if-not-equal $test-get-or-insert-segment:check1/disp8
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# fail test
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# . _write(2/stderr, msg)
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# . . push args
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68/push "F - test-get-or-insert-segment/0"/imm32
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68/push 2/imm32/stderr
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# . . call
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e8/call _write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . _write(2/stderr, Newline)
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# . . push args
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68/push Newline/imm32
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68/push 2/imm32/stderr
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# . . call
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e8/call _write/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . increment Num-test-failures
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ff 0/subop/increment 0/mod/indirect 5/rm32/.disp32 . . . Num-test-failures/disp32 # increment *Num-test-failures
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eb/jump $test-get-or-insert-segment:end/disp8
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$test-get-or-insert-segment:check1:
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# check-ints-equal(segment->length, 8, msg)
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# . . push args
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68/push "F - test-get-or-insert-segment/1"/imm32
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68/push 8/imm32/segment-length
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ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX . . . . 8/disp8 . # push *(EAX+8)
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# . . call
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e8/call check-ints-equal/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
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$test-get-or-insert-segment:check2:
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# check-ints-equal(table->write, rowsize = 8, msg)
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# . . push args
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68/push "F - test-get-or-insert-segment/2"/imm32
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68/push 8/imm32/row-size
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ff 6/subop/push 0/mod/indirect 1/rm32/ECX . . . . . . # push *ECX
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# . . call
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e8/call check-ints-equal/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
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# EAX = string-equal?(*table->data, "code")
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# . . push args
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68/push "code"/imm32
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ff 6/subop/push 1/mod/*+disp8 1/rm32/ECX . . . . 0xc/disp8 . # push *(ECX+12)
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# . . call
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e8/call string-equal?/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# check-ints-equal(EAX, 1, msg)
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# . . push args
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68/push "F - test-get-or-insert-segment/3"/imm32
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68/push 1/imm32
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50/push-EAX
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# . . call
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e8/call check-ints-equal/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
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$test-get-or-insert-segment:check3:
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# stream/EAX = *(table->data+4)
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8b/copy 1/mod/*+disp8 1/rm32/ECX . . . 0/r32/EAX 0x10/disp8 . # copy *(ECX+16) to EAX
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# check-ints-equal(stream->length, 8, msg)
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# . . push args
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68/push "F - test-get-or-insert-segment/4"/imm32
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68/push 8/imm32/row-size
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ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX . . . . 8/disp8 . # push *(EAX+8)
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# . . call
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e8/call check-ints-equal/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
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$test-get-or-insert-segment:end:
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# . epilog
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89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
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5d/pop-to-EBP
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c3/return
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2019-04-05 06:25:35 +00:00
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# write an entire stream's contents to a buffered-file
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# ways to do this:
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# - construct a 'maximal slice' and pass it to write-slice
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# - flush the buffered-file and pass the stream directly to its fd (disabling buffering)
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# we'll go with the first way for now
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write-stream-data: # f : (address buffered-file), s : (address stream) -> <void>
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# . prolog
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55/push-EBP
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89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
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# . save registers
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50/push-EAX
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51/push-ECX
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56/push-ESI
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# ESI = s
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8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
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# var slice/ECX = {s->data, s->data + s->write}
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# . push s->data + s->write
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8b/copy 0/mod/indirect 6/rm32/ESI . . . 0/r32/EAX . . # copy *ESI to EAX
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8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/ESI 0/index/EAX . 0/r32/EAX 0xc/disp8 . # copy ESI+EAX+12 to EAX
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50/push-EAX
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# . push s->data
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8d/copy-address 1/mod/*+disp8 6/rm32/ESI . . . 0/r32/EAX 0xc/disp8 . # copy ESI+12 to EAX
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50/push-EAX
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# . ECX = ESP
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89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
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# write-slice(f, slice)
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# . . push args
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51/push-ECX
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ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
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# . . call
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e8/call write-slice/disp32
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# . . discard args
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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$write-stream-data:end:
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# . restore locals
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81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
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# . restore registers
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5e/pop-to-ESI
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59/pop-to-ECX
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58/pop-to-EAX
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# . epilog
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89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
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5d/pop-to-EBP
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c3/return
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test-write-stream-data:
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# . prolog
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55/push-EBP
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89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
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# setup
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# . clear-stream(_test-stream)
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# . . push args
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68/push _test-stream/imm32
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# . . call
|
|
|
|
|
e8/call clear-stream/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
|
|
|
# . clear-stream(_test-buffered-file+4)
|
|
|
|
|
# . . push args
|
|
|
|
|
b8/copy-to-EAX _test-buffered-file/imm32
|
|
|
|
|
05/add-to-EAX 4/imm32
|
|
|
|
|
50/push-EAX
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call clear-stream/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
|
|
|
# . clear-stream(_test-tmp-stream)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push _test-tmp-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call clear-stream/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
|
|
|
# initialize input
|
|
|
|
|
# . write(_test-tmp-stream, "abcd")
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "abcd"/imm32
|
|
|
|
|
68/push _test-tmp-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# write-stream-data(_test-buffered-file, _test-tmp-stream)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push _test-tmp-stream/imm32
|
|
|
|
|
68/push _test-buffered-file/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call write-stream-data/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# check that the write happened as expected
|
|
|
|
|
# . flush(_test-buffered-file)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push _test-buffered-file/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call flush/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
|
|
|
# . check-stream-equal(_test-stream, "abcd", msg)
|
|
|
|
|
# . . push args
|
|
|
|
|
68/push "F - test-write-stream-data"/imm32
|
|
|
|
|
68/push "abcd"/imm32
|
|
|
|
|
68/push _test-stream/imm32
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call check-stream-equal/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP
|
|
|
|
|
# . epilog
|
|
|
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
|
|
|
5d/pop-to-EBP
|
|
|
|
|
c3/return
|
|
|
|
|
|
|
|
|
|
# shortcut for parse-hex-int(next-token-from-slice(word->start, word->end, '/'))
|
|
|
|
|
parse-datum-of-word: # word : (address slice) -> value/EAX
|
|
|
|
|
# . prolog
|
|
|
|
|
55/push-EBP
|
|
|
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
|
|
|
# . save registers
|
|
|
|
|
51/push-ECX
|
|
|
|
|
56/push-ESI
|
|
|
|
|
# ESI = word
|
|
|
|
|
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI
|
|
|
|
|
# var slice/ECX = {0, 0}
|
|
|
|
|
68/push 0/imm32/end
|
|
|
|
|
68/push 0/imm32/start
|
|
|
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
|
|
|
# slice = next-token-from-slice(word->start, word->end, '/')
|
|
|
|
|
# . . push args
|
|
|
|
|
51/push-ECX
|
|
|
|
|
68/push 0x2f/imm32/slash
|
|
|
|
|
ff 6/subop/push 1/mod/*+disp8 6/rm32/ESI . . . . 4/disp8 . # push *(ESI+4)
|
|
|
|
|
ff 6/subop/push 0/mod/indirect 6/rm32/ESI . . . . . . # push *ESI
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call next-token-from-slice/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0x10/imm32 # add to ESP
|
|
|
|
|
# value/EAX = parse-hex-int(slice)
|
|
|
|
|
# . . push args
|
|
|
|
|
51/push-ECX
|
|
|
|
|
# . . call
|
|
|
|
|
e8/call parse-hex-int/disp32
|
|
|
|
|
# . . discard args
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
|
|
|
$parse-datum-of-word:end:
|
|
|
|
|
# . reclaim locals
|
|
|
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
|
|
|
# . restore registers
|
|
|
|
|
5e/pop-to-ESI
|
|
|
|
|
59/pop-to-ECX
|
|
|
|
|
# . epilog
|
|
|
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
|
|
|
5d/pop-to-EBP
|
|
|
|
|
c3/return
|
|
|
|
|
|
|
|
|
|
== data
|
|
|
|
|
|
|
|
|
|
_test-slice-negative-two:
|
|
|
|
|
2d/- 32/2
|
|
|
|
|
_test-slice-negative-two-end:
|
|
|
|
|
2f/slash 66/f 6f/o 6f/o
|
|
|
|
|
_test-slice-negative-two-metadata-end:
|
|
|
|
|
|
|
|
|
|
_test-slice-three-zero:
|
|
|
|
|
33/3 30/0
|
|
|
|
|
_test-slice-three-zero-end:
|
|
|
|
|
|
|
|
|
|
_test-slice-non-number-word:
|
|
|
|
|
78/x 79/y 7a/z
|
|
|
|
|
_test-slice-non-number-word-end:
|
|
|
|
|
2f/slash
|
|
|
|
|
_test-slice-non-number-word-metadata-end:
|
|
|
|
|
|
|
|
|
|
_test-input-stream:
|
|
|
|
|
# current write index
|
|
|
|
|
0/imm32
|
|
|
|
|
# current read index
|
|
|
|
|
0/imm32
|
|
|
|
|
# length
|
|
|
|
|
0x80/imm32
|
|
|
|
|
# data
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
|
|
|
|
|
# a test buffered file for _test-input-stream
|
|
|
|
|
_test-input-buffered-file:
|
|
|
|
|
# file descriptor or (address stream)
|
|
|
|
|
_test-input-stream/imm32
|
|
|
|
|
# current write index
|
|
|
|
|
0/imm32
|
|
|
|
|
# current read index
|
|
|
|
|
0/imm32
|
|
|
|
|
# length
|
|
|
|
|
6/imm32
|
|
|
|
|
# data
|
|
|
|
|
00 00 00 00 00 00 # 6 bytes
|
|
|
|
|
|
|
|
|
|
_test-output-stream:
|
|
|
|
|
# current write index
|
|
|
|
|
0/imm32
|
|
|
|
|
# current read index
|
|
|
|
|
0/imm32
|
|
|
|
|
# length
|
|
|
|
|
0x80/imm32
|
|
|
|
|
# data
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
00 00 00 00 00 00 00 00 # 8 bytes
|
|
|
|
|
|
|
|
|
|
# a test buffered file for _test-output-stream
|
|
|
|
|
_test-output-buffered-file:
|
|
|
|
|
# file descriptor or (address stream)
|
|
|
|
|
_test-output-stream/imm32
|
|
|
|
|
# current write index
|
|
|
|
|
0/imm32
|
|
|
|
|
# current read index
|
|
|
|
|
0/imm32
|
|
|
|
|
# length
|
|
|
|
|
6/imm32
|
|
|
|
|
# data
|
|
|
|
|
00 00 00 00 00 00 # 6 bytes
|
|
|
|
|
|
|
|
|
|
_test-slice-hexlike-non-number-word:
|
|
|
|
|
61/a 62/b 63/c 64/d
|
|
|
|
|
_test-slice-hexlike-non-number-word-end:
|
|
|
|
|
2f/slash
|
|
|
|
|
78/x 79/y 7a/z
|
|
|
|
|
_test-slice-hexlike-non-number-word-metadata-end:
|
|
|
|
|
|
|
|
|
|
_test-slice-with-slash-prefix:
|
|
|
|
|
2f/slash 30/0 33/3
|
|
|
|
|
_test-slice-with-slash-prefix-end:
|
|
|
|
|
|
2019-04-06 07:08:32 +00:00
|
|
|
_test-code-segment:
|
|
|
|
|
63/c 6f/o 64/d 65/e
|
|
|
|
|
_test-code-segment-end:
|
|
|
|
|
|
2019-04-05 06:25:35 +00:00
|
|
|
# . . vim:nowrap:textwidth=0
|
