1174 lines
60 KiB
Plaintext
1174 lines
60 KiB
Plaintext
# new data structure: a slice is an open interval of addresses [start, end)
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# that includes 'start' but not 'end'
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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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slice-empty?: # s : (address slice) -> EAX : boolean
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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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# ECX = s
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8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX
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# if (s->start == s->end) return true
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# . EAX = s->start
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8b/copy 0/mod/indirect 1/rm32/ECX . . . 0/r32/EAX . . # copy *ECX to EAX
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# . compare EAX and s->end
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39/compare 1/mod/*+disp8 1/rm32/ECX . . . 0/r32/EAX 4/disp8 . # compare EAX and *(ECX+4)
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b8/copy-to-EAX 1/imm32/true
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74/jump-if-equal $slice-empty?:end/disp8
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b8/copy-to-EAX 0/imm32/false
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$slice-empty?:end:
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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-slice-empty-true:
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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 slice/ECX = {34, 34}
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68/push 34/imm32/end
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68/push 34/imm32/start
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89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
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# slice-empty?(slice)
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# . . push args
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51/push-ECX
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# . . call
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e8/call slice-empty?/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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# check-ints-equal(EAX, 1, msg)
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# . . push args
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68/push "F - test-slice-empty-true"/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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# . 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-slice-empty-false:
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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 slice/ECX = {34, 23}
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68/push 23/imm32/end
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68/push 34/imm32/start
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89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
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# slice-empty?(slice)
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# . . push args
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51/push-ECX
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# . . call
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e8/call slice-empty?/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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# check-ints-equal(EAX, 0, msg)
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# . . push args
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68/push "F - test-slice-empty-false"/imm32
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68/push 0/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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# . 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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slice-equal?: # s : (address slice), p : (address string) -> EAX : boolean
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# pseudocode:
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# if (p == 0) return (s == 0)
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# currs = s->start
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# maxs = s->end
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# if (maxs - currs != p->length) return false
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# currp = p->data
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# while currs < maxs
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# if (*currs != *currp) return false
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# ++currs
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# ++currp
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# return true
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#
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# registers:
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# currs: EDX
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# maxs: ESI
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# currp: EBX
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# *currs: EAX
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# *currp: ECX
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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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53/push-EBX
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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 8/disp8 . # copy *(EBP+8) to ESI
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# currs/EDX = s->start
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8b/copy 0/mod/indirect 6/rm32/ESI . . . 2/r32/EDX . . # copy *ESI to EDX
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# maxs/ESI = s->end
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8b/copy 1/mod/*+disp8 6/rm32/ESI . . . 6/r32/ESI 4/disp8 . # copy *(ESI+4) to ESI
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# EAX = maxs - currs
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89/copy 3/mod/direct 0/rm32/EAX . . . 6/r32/ESI . . # copy ESI to EAX
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29/subtract 3/mod/direct 0/rm32/EAX . . . 2/r32/EDX . . # subtract EDX from EAX
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# EBX = p
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8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 3/r32/EBX 0xc/disp8 . # copy *(EBP+12) to EBX
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# if (p != 0) goto next check
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81 7/subop/compare 3/mod/direct 3/rm32/EBX . . . . . 0/imm32 # compare EBX
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75/jump-if-not-equal $slice-equal?:nonnull-string/disp8
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$slice-equal?:null-string:
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# return s->start == s->end
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3d/compare-EAX-and 0/imm32
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74/jump-if-equal $slice-equal?:true/disp8
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eb/jump $slice-equal?:false/disp8
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$slice-equal?:nonnull-string:
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# if (EAX != p->length) return false
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39/compare 0/mod/indirect 3/rm32/EBX . . . 0/r32/EAX . . # compare *EBX and EAX
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75/jump-if-not-equal $slice-equal?:false/disp8
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# currp/EBX = p->data
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81 0/subop/add 3/mod/direct 3/rm32/EBX . . . . . 4/imm32 # add to EBX
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# EAX = ECX = 0
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31/xor 3/mod/direct 0/rm32/EAX . . . 0/r32/EAX . . # clear EAX
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31/xor 3/mod/direct 1/rm32/ECX . . . 1/r32/ECX . . # clear ECX
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$slice-equal?:loop:
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# if (currs >= maxs) return true
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39/compare 3/mod/direct 2/rm32/EDX . . . 6/r32/ESI . . # compare EDX with ESI
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73/jump-if-greater-or-equal-unsigned $slice-equal?:true/disp8
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# AL = *currp
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8a/copy-byte 0/mod/indirect 3/rm32/EBX . . . 0/r32/AL . . # copy byte at *EBX to AL
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# CL = *currs
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8a/copy-byte 0/mod/indirect 2/rm32/EDX . . . 1/r32/CL . . # copy byte at *EDX to CL
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# if (EAX != ECX) return false
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39/compare 3/mod/direct 0/rm32/EAX . . . 1/r32/ECX . . # compare EAX and ECX
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75/jump-if-not-equal $slice-equal?:false/disp8
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# ++currp
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43/increment-EBX
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# ++currs
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42/increment-EDX
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eb/jump $slice-equal?:loop/disp8
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$slice-equal?:false:
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b8/copy-to-EAX 0/imm32
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eb/jump $slice-equal?:end/disp8
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$slice-equal?:true:
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b8/copy-to-EAX 1/imm32
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$slice-equal?:end:
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# . restore registers
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5e/pop-to-ESI
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5b/pop-to-EBX
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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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test-slice-equal:
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# - slice-equal?(slice("Abc"), "Abc") == 1
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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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# (EAX..ECX) = "Abc"
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b8/copy-to-EAX "Abc"/imm32
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8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
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8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
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05/add-to-EAX 4/imm32
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# var slice/ECX = {EAX, ECX}
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51/push-ECX
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50/push-EAX
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89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
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# EAX = slice-equal?(ECX, "Abc")
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# . . push args
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68/push "Abc"/imm32
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51/push-ECX
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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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# check-ints-equal(EAX, 1, msg)
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# . . push args
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68/push "F - test-slice-equal"/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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# . 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-slice-equal-false:
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# - slice-equal?(slice("bcd"), "Abc") == 0
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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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# (EAX..ECX) = "bcd"
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b8/copy-to-EAX "bcd"/imm32
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8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
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8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
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05/add-to-EAX 4/imm32
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# var slice/ECX = {EAX, ECX}
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51/push-ECX
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50/push-EAX
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89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
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# EAX = slice-equal?(ECX, "Abc")
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# . . push args
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68/push "Abc"/imm32
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51/push-ECX
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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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# check-ints-equal(EAX, 0, msg)
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# . . push args
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68/push "F - test-slice-equal-false"/imm32
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68/push 0/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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# . 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-slice-equal-too-long:
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# - slice-equal?(slice("Abcd"), "Abc") == 0
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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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# (EAX..ECX) = "Abcd"
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b8/copy-to-EAX "Abcd"/imm32
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8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
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8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
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05/add-to-EAX 4/imm32
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# var slice/ECX = {EAX, ECX}
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51/push-ECX
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50/push-EAX
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89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
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# EAX = slice-equal?(ECX, "Abc")
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# . . push args
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68/push "Abc"/imm32
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51/push-ECX
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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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# check-ints-equal(EAX, 0, msg)
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# . . push args
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68/push "F - test-slice-equal-too-long"/imm32
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68/push 0/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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# . 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-slice-equal-too-short:
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# - slice-equal?(slice("A"), "Abc") == 0
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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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# (EAX..ECX) = "A"
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b8/copy-to-EAX "A"/imm32
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8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
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8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
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05/add-to-EAX 4/imm32
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# var slice/ECX = {EAX, ECX}
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51/push-ECX
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50/push-EAX
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89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
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# EAX = slice-equal?(ECX, "Abc")
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# . . push args
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68/push "Abc"/imm32
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51/push-ECX
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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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# check-ints-equal(EAX, 0, msg)
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# . . push args
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68/push "F - test-slice-equal-too-short"/imm32
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68/push 0/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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# . 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-slice-equal-empty:
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# - slice-equal?(slice(""), "Abc") == 0
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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 slice/ECX
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68/push 0/imm32/end
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68/push 0/imm32/start
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89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
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# EAX = slice-equal?(ECX, "Abc")
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# . . push args
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68/push "Abc"/imm32
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51/push-ECX
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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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# check-ints-equal(EAX, 0, msg)
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# . . push args
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68/push "F - test-slice-equal-empty"/imm32
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68/push 0/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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# . 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-slice-equal-with-empty:
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# - slice-equal?(slice("Ab"), "") == 0
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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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# (EAX..ECX) = "Ab"
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b8/copy-to-EAX "Ab"/imm32
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8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
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8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
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05/add-to-EAX 4/imm32
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# var slice/ECX = {EAX, ECX}
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51/push-ECX
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50/push-EAX
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89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
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# EAX = slice-equal?(ECX, "")
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# . . push args
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68/push ""/imm32
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51/push-ECX
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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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# check-ints-equal(EAX, 0, msg)
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# . . push args
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68/push "F - test-slice-equal-with-empty"/imm32
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68/push 0/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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# . epilog
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|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
test-slice-equal-empty-with-empty:
|
|
# - slice-equal?(slice(""), "") == 1
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# var slice/ECX
|
|
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
|
|
# EAX = slice-equal?(ECX, "")
|
|
# . . push args
|
|
68/push ""/imm32
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call slice-equal?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 1, msg)
|
|
# . . push args
|
|
68/push "F - test-slice-equal-empty-with-empty"/imm32
|
|
68/push 1/imm32
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-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
|
|
|
|
test-slice-equal-with-null:
|
|
# - slice-equal?(slice("Ab"), null) == 0
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# (EAX..ECX) = "Ab"
|
|
b8/copy-to-EAX "Ab"/imm32
|
|
8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
|
|
05/add-to-EAX 4/imm32
|
|
# var slice/ECX = {EAX, ECX}
|
|
51/push-ECX
|
|
50/push-EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
# EAX = slice-equal?(ECX, 0)
|
|
# . . push args
|
|
68/push 0/imm32
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call slice-equal?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 0, msg)
|
|
# . . push args
|
|
68/push "F - test-slice-equal-with-null"/imm32
|
|
68/push 0/imm32
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-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
|
|
|
|
slice-starts-with?: # s : (address slice), head : (address string) -> EAX : boolean
|
|
# pseudocode
|
|
# lenh = head->length
|
|
# if (lenh > s->end - s->start) return false
|
|
# i = 0
|
|
# currs = s->start
|
|
# currp = head->data
|
|
# while i < lenh
|
|
# if (*currs != *currh) return false
|
|
# ++i
|
|
# ++currs
|
|
# ++currh
|
|
# return true
|
|
#
|
|
# registers:
|
|
# currs: ESI
|
|
# currh: EDI
|
|
# *currs: EAX
|
|
# *currh: EBX
|
|
# i: ECX
|
|
# lenh: EDX
|
|
#
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# . save registers
|
|
51/push-ECX
|
|
52/push-EDX
|
|
53/push-EBX
|
|
56/push-ESI
|
|
57/push-EDI
|
|
# ESI = s
|
|
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI
|
|
# ECX = s->end - s->start
|
|
8b/copy 1/mod/*+disp8 6/rm32/ESI . . . 1/r32/ECX 4/disp8 . # copy *(ESI+4) to ECX
|
|
2b/subtract 0/mod/indirect 6/rm32/ESI . . . 1/r32/ECX . . # subtract *ESI from ECX
|
|
# EDI = head
|
|
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 7/r32/EDI 0xc/disp8 . # copy *(EBP+12) to EDI
|
|
# lenh/EDX = head->length
|
|
8b/copy 0/mod/indirect 7/rm32/EDI . . . 2/r32/EDX . . # copy *EDI to EDX
|
|
# if (lenh > s->end - s->start) return false
|
|
39/compare 3/mod/direct 2/rm32/EDX . . . 1/r32/ECX . . # compare EDX with ECX
|
|
7f/jump-if-greater $slice-starts-with?:false/disp8
|
|
# currs/ESI = s->start
|
|
8b/subtract 0/mod/indirect 6/rm32/ESI . . . 6/r32/ESI . . # copy *ESI to ESI
|
|
# currh/EDI = head->data
|
|
81 0/subop/add 3/mod/direct 7/rm32/EDI . . . . . 4/imm32 # add to EDI
|
|
# i/ECX = 0
|
|
31/xor 3/mod/direct 1/rm32/ECX . . . 1/r32/ECX . . # clear ECX
|
|
# EAX = EBX = 0
|
|
31/xor 3/mod/direct 0/rm32/EAX . . . 0/r32/EAX . . # clear EAX
|
|
31/xor 3/mod/direct 3/rm32/EBX . . . 3/r32/EBX . . # clear EBX
|
|
$slice-starts-with?:loop:
|
|
# if (i >= lenh) return true
|
|
39/compare 3/mod/direct 1/rm32/ECX . . . 2/r32/EDX . . # compare ECX with EDX
|
|
7d/jump-if-greater-or-equal $slice-starts-with?:true/disp8
|
|
# AL = *currs
|
|
8a/copy-byte 0/mod/indirect 6/rm32/ESI . . . 0/r32/AL . . # copy byte at *ESI to AL
|
|
# BL = *currh
|
|
8a/copy-byte 0/mod/indirect 7/rm32/EDI . . . 3/r32/BL . . # copy byte at *EDI to BL
|
|
# if (*currs != *currh) return false
|
|
39/compare 3/mod/direct 0/rm32/EAX . . . 3/r32/EBX . . # compare EAX and EBX
|
|
75/jump-if-not-equal $slice-starts-with?:false/disp8
|
|
# ++i
|
|
41/increment-ECX
|
|
# ++currs
|
|
46/increment-ESI
|
|
# ++currh
|
|
47/increment-EDI
|
|
eb/jump $slice-starts-with?:loop/disp8
|
|
$slice-starts-with?:true:
|
|
b8/copy-to-EAX 1/imm32
|
|
eb/jump $slice-starts-with?:end/disp8
|
|
$slice-starts-with?:false:
|
|
b8/copy-to-EAX 0/imm32
|
|
$slice-starts-with?:end:
|
|
# . restore registers
|
|
5f/pop-to-EDI
|
|
5e/pop-to-ESI
|
|
5b/pop-to-EBX
|
|
5a/pop-to-EDX
|
|
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
|
|
|
|
test-slice-starts-with-single-character:
|
|
# - slice-starts-with?(slice("Abc"), "A") == 1
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# (EAX..ECX) = "Abc"
|
|
b8/copy-to-EAX "Abc"/imm32
|
|
8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
|
|
05/add-to-EAX 4/imm32
|
|
# var slice/ECX = {EAX, ECX}
|
|
51/push-ECX
|
|
50/push-EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
# EAX = slice-starts-with?(ECX, "A")
|
|
# . . push args
|
|
68/push "A"/imm32
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call slice-starts-with?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 1, msg)
|
|
# . . push args
|
|
68/push "F - test-slice-starts-with-single-character"/imm32
|
|
68/push 1/imm32
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-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
|
|
|
|
test-slice-starts-with-empty-string:
|
|
# - slice-starts-with?(slice("Abc"), "") == 1
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# (EAX..ECX) = "Abc"
|
|
b8/copy-to-EAX "Abc"/imm32
|
|
8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
|
|
05/add-to-EAX 4/imm32
|
|
# var slice/ECX = {EAX, ECX}
|
|
51/push-ECX
|
|
50/push-EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
# EAX = slice-starts-with?(ECX, "")
|
|
# . . push args
|
|
68/push ""/imm32
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call slice-starts-with?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 1, msg)
|
|
# . . push args
|
|
68/push "F - test-slice-starts-with-empty-string"/imm32
|
|
68/push 1/imm32
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-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
|
|
|
|
test-slice-starts-with-multiple-characters:
|
|
# - slice-starts-with?(slice("Abc"), "Ab") == 1
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# (EAX..ECX) = "Abc"
|
|
b8/copy-to-EAX "Abc"/imm32
|
|
8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
|
|
05/add-to-EAX 4/imm32
|
|
# var slice/ECX = {EAX, ECX}
|
|
51/push-ECX
|
|
50/push-EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
# EAX = slice-starts-with?(ECX, "Ab")
|
|
# . . push args
|
|
68/push "Ab"/imm32
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call slice-starts-with?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 1, msg)
|
|
# . . push args
|
|
68/push "F - test-slice-starts-with-multiple-characters"/imm32
|
|
68/push 1/imm32
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-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
|
|
|
|
test-slice-starts-with-entire-string:
|
|
# - slice-starts-with?(slice("Abc"), "Abc") == 1
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# (EAX..ECX) = "Abc"
|
|
b8/copy-to-EAX "Abc"/imm32
|
|
8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
|
|
05/add-to-EAX 4/imm32
|
|
# var slice/ECX = {EAX, ECX}
|
|
51/push-ECX
|
|
50/push-EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
# EAX = slice-starts-with?(ECX, "Abc")
|
|
# . . push args
|
|
68/push "Abc"/imm32
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call slice-starts-with?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 1, msg)
|
|
# . . push args
|
|
68/push "F - test-slice-starts-with-entire-string"/imm32
|
|
68/push 1/imm32
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-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
|
|
|
|
test-slice-starts-with-fails:
|
|
# - slice-starts-with?(slice("Abc"), "Abd") == 1
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# (EAX..ECX) = "Abc"
|
|
b8/copy-to-EAX "Abc"/imm32
|
|
8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
|
|
05/add-to-EAX 4/imm32
|
|
# var slice/ECX = {EAX, ECX}
|
|
51/push-ECX
|
|
50/push-EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
# EAX = slice-starts-with?(ECX, "Abd")
|
|
# . . push args
|
|
68/push "Abd"/imm32
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call slice-starts-with?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 0, msg)
|
|
# . . push args
|
|
68/push "F - test-slice-starts-with-fails"/imm32
|
|
68/push 0/imm32
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-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
|
|
|
|
test-slice-starts-with-fails-2:
|
|
# - slice-starts-with?(slice("Abc"), "Ac") == 1
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# (EAX..ECX) = "Abc"
|
|
b8/copy-to-EAX "Abc"/imm32
|
|
8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
|
|
05/add-to-EAX 4/imm32
|
|
# var slice/ECX = {EAX, ECX}
|
|
51/push-ECX
|
|
50/push-EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
# EAX = slice-starts-with?(ECX, "Ac")
|
|
# . . push args
|
|
68/push "Ac"/imm32
|
|
51/push-ECX
|
|
# . . call
|
|
e8/call slice-starts-with?/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-ints-equal(EAX, 0, msg)
|
|
# . . push args
|
|
68/push "F - test-slice-starts-with-fails-2"/imm32
|
|
68/push 0/imm32
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call check-ints-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
|
|
|
|
# write a slice to a stream
|
|
# abort if the stream doesn't have enough space
|
|
write-slice: # out : (address stream), s : (address slice)
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# . save registers
|
|
50/push-EAX
|
|
51/push-ECX
|
|
52/push-EDX
|
|
53/push-EBX
|
|
56/push-ESI
|
|
57/push-EDI
|
|
# ESI = s
|
|
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
|
|
# curr/ECX = s->start
|
|
8b/copy 0/mod/indirect 6/rm32/ESI . . . 1/r32/ECX . . # copy *ESI to ECX
|
|
# max/ESI = s->end
|
|
8b/copy 1/mod/*+disp8 6/rm32/ESI . . . 6/r32/ESI 4/disp8 . # copy *(ESI+4) to ESI
|
|
# EDI = out
|
|
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
|
|
# EDX = out->length
|
|
8b/copy 1/mod/*+disp8 7/rm32/EDI . . . 2/r32/EDX 8/disp8 . # copy *(EDI+8) to EDX
|
|
# EBX = out->write
|
|
8b/copy 0/mod/indirect 7/rm32/EDI . . . 3/r32/EBX . . # copy *EDI to EBX
|
|
$write-slice:loop:
|
|
# if (curr >= max) break
|
|
39/compare 3/mod/direct 1/rm32/ECX . . . 6/r32/ESI . . # compare ECX with ESI
|
|
73/jump-if-greater-or-equal-unsigned $write-slice:loop-end/disp8
|
|
# if (out->write >= out->length) abort
|
|
39/compare 3/mod/direct 3/rm32/EBX . . . 2/r32/EDX . . # compare EBX with EDX
|
|
7d/jump-if-greater-or-equal $write-slice:abort/disp8
|
|
# out->data[out->write] = *in
|
|
# . AL = *in
|
|
31/xor 3/mod/direct 0/rm32/EAX . . . 0/r32/EAX . . # clear EAX
|
|
8a/copy-byte 0/mod/indirect 1/rm32/ECX . . . 0/r32/AL . . # copy byte at *ECX to AL
|
|
# . out->data[out->write] = AL
|
|
88/copy-byte 1/mod/*+disp8 4/rm32/sib 7/base/EDI 3/index/EBX . 0/r32/AL 0xc/disp8 . # copy AL to *(EDI+EBX+12)
|
|
# ++out->write
|
|
43/increment-EBX
|
|
# ++in
|
|
41/increment-ECX
|
|
eb/jump $write-slice:loop/disp8
|
|
$write-slice:loop-end:
|
|
# persist out->write
|
|
89/copy 0/mod/indirect 7/rm32/EDI . . . 3/r32/EBX . . # copy EBX to *EDI
|
|
$write-slice:end:
|
|
# . restore registers
|
|
5f/pop-to-EDI
|
|
5e/pop-to-ESI
|
|
5b/pop-to-EBX
|
|
5a/pop-to-EDX
|
|
59/pop-to-ECX
|
|
58/pop-to-EAX
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
$write-slice:abort:
|
|
# . _write(2/stderr, error)
|
|
# . . push args
|
|
68/push "write-slice: out of space"/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
|
|
# . syscall(exit, 1)
|
|
bb/copy-to-EBX 1/imm32
|
|
b8/copy-to-EAX 1/imm32/exit
|
|
cd/syscall 0x80/imm8
|
|
# never gets here
|
|
|
|
test-write-slice:
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-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
|
|
# (EAX..ECX) = "Abc"
|
|
b8/copy-to-EAX "Abc"/imm32
|
|
8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
|
|
05/add-to-EAX 4/imm32
|
|
# var slice/ECX = {EAX, ECX}
|
|
51/push-ECX
|
|
50/push-EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
# write-slice(_test-stream, slice)
|
|
# . . push args
|
|
51/push-ECX
|
|
68/push _test-stream/imm32
|
|
# . . call
|
|
e8/call write-slice/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# check-stream-equal(_test-stream, "Abc", msg)
|
|
# . . push args
|
|
68/push "F - test-write-slice"/imm32
|
|
68/push "Abc"/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
|
|
|
|
# write a slice to a buffered-file
|
|
write-slice-buffered: # out : (address buffered-file), s : (address slice)
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# . save registers
|
|
50/push-EAX
|
|
51/push-ECX
|
|
52/push-EDX
|
|
53/push-EBX
|
|
56/push-ESI
|
|
57/push-EDI
|
|
# ESI = s
|
|
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
|
|
# curr/ECX = s->start
|
|
8b/copy 0/mod/indirect 6/rm32/ESI . . . 1/r32/ECX . . # copy *ESI to ECX
|
|
# max/ESI = s->end
|
|
8b/copy 1/mod/*+disp8 6/rm32/ESI . . . 6/r32/ESI 4/disp8 . # copy *(ESI+4) to ESI
|
|
# EDI = out
|
|
8b/copy 1/mod/*+disp8 5/rm32/EBP . . 7/r32/EDI 8/disp8 . # copy *(EBP+8) to EDI
|
|
# EDX = out->length
|
|
8b/copy 1/mod/*+disp8 7/rm32/EDI . . . 2/r32/EDX 0xc/disp8 . # copy *(EDI+12) to EDX
|
|
# EBX = out->write
|
|
8b/copy 1/mod/*+disp8 7/rm32/EDI . . . 3/r32/EBX 4/disp8 . # copy *(EDI+4) to EBX
|
|
$write-slice-buffered:loop:
|
|
# if (curr >= max) break
|
|
39/compare 3/mod/direct 1/rm32/ECX . . . 6/r32/ESI . . # compare ECX with ESI
|
|
73/jump-if-greater-or-equal-unsigned $write-slice-buffered:loop-end/disp8
|
|
# if (out->write >= out->length) flush and clear out's stream
|
|
39/compare 3/mod/direct 3/rm32/EBX . . . 2/r32/EDX . . # compare EBX with EDX
|
|
7c/jump-if-lesser $write-slice-buffered:to-stream/disp8
|
|
# . persist out->write
|
|
89/copy 1/mod/*+disp8 7/rm32/EDI . . . 3/r32/EBX 4/disp8 . # copy EBX to *(EDI+4)
|
|
# . flush(out)
|
|
# . . push args
|
|
57/push-EDI
|
|
# . . call
|
|
e8/call flush/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP
|
|
# . clear-stream(stream = out+4)
|
|
# . . push args
|
|
8d/copy-address 1/mod/*+disp8 7/rm32/EDI . . . 0/r32/EAX 4/disp8 . # copy EDI+4 to EAX
|
|
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
|
|
# . out->write must now be 0; update its cache at EBX
|
|
31/xor 3/mod/direct 3/rm32/EBX . . . 3/r32/EBX . . # clear EBX
|
|
$write-slice-buffered:to-stream:
|
|
# out->data[out->write] = *in
|
|
# . AL = *in
|
|
31/xor 3/mod/direct 0/rm32/EAX . . . 0/r32/EAX . . # clear EAX
|
|
8a/copy-byte 0/mod/indirect 1/rm32/ECX . . . 0/r32/AL . . # copy byte at *ECX to AL
|
|
# . out->data[out->write] = AL
|
|
88/copy-byte 1/mod/*+disp8 4/rm32/sib 7/base/EDI 3/index/EBX . 0/r32/AL 0x10/disp8 . # copy AL to *(EDI+EBX+16)
|
|
# ++out->write
|
|
43/increment-EBX
|
|
# ++in
|
|
41/increment-ECX
|
|
eb/jump $write-slice-buffered:loop/disp8
|
|
$write-slice-buffered:loop-end:
|
|
# persist necessary variables from registers
|
|
89/copy 1/mod/*+disp8 7/rm32/EDI . . . 3/r32/EBX 4/disp8 . # copy EBX to *(EDI+4)
|
|
$write-slice-buffered:end:
|
|
# . restore registers
|
|
5f/pop-to-EDI
|
|
5e/pop-to-ESI
|
|
5b/pop-to-EBX
|
|
5a/pop-to-EDX
|
|
59/pop-to-ECX
|
|
58/pop-to-EAX
|
|
# . epilog
|
|
89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP
|
|
5d/pop-to-EBP
|
|
c3/return
|
|
|
|
test-write-slice-buffered:
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# setup
|
|
# . clear-stream(_test-stream)
|
|
# . . push args
|
|
68/push _test-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
|
|
# . 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
|
|
# (EAX..ECX) = "Abc"
|
|
b8/copy-to-EAX "Abc"/imm32
|
|
8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
|
|
05/add-to-EAX 4/imm32
|
|
# var slice/ECX = {EAX, ECX}
|
|
51/push-ECX
|
|
50/push-EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
# write-slice-buffered(_test-buffered-file, slice)
|
|
# . . push args
|
|
51/push-ECX
|
|
68/push _test-buffered-file/imm32
|
|
# . . call
|
|
e8/call write-slice-buffered/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# 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, "Abc", msg)
|
|
# . . push args
|
|
68/push "F - test-write-slice-buffered"/imm32
|
|
68/push "Abc"/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
|
|
|
|
# copy a slice into a new (dynamically allocated) string
|
|
slice-to-string: # ad : (address allocation-descriptor), in : (address slice) -> out/EAX : (address array)
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# . save registers
|
|
51/push-ECX
|
|
52/push-EDX
|
|
53/push-EBX
|
|
56/push-ESI
|
|
# ESI = in
|
|
8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 0xc/disp8 . # copy *(EBP+12) to ESI
|
|
# curr/EDX = in->start
|
|
8b/copy 0/mod/indirect 6/rm32/ESI . . . 2/r32/EDX . . # copy *ESI to EDX
|
|
# max/EBX = in->end
|
|
8b/copy 1/mod/*+disp8 6/rm32/ESI . . . 3/r32/EBX 4/disp8 . # copy *(ESI+4) to EBX
|
|
# size/ECX = max - curr + 4 # total size of output string (including the initial length)
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 3/r32/EBX . . # copy EBX to ECX
|
|
29/subtract 3/mod/direct 1/rm32/ECX . . . 2/r32/EDX . . # subtract EDX from ECX
|
|
81 0/subop/add 3/mod/direct 1/rm32/ECX . . . . . 4/imm32 # add to ECX
|
|
# out/EAX = allocate(ad, size)
|
|
# . . push args
|
|
51/push-ECX
|
|
ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8)
|
|
# . . call
|
|
e8/call allocate/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# if (EAX == 0) abort
|
|
3d/compare-EAX-and 0/imm32
|
|
74/jump-if-equal $slice-to-string:abort/disp8
|
|
# *out = size-4
|
|
89/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy ECX to *EAX
|
|
81 5/subop/subtract 0/mod/indirect 0/rm32/EAX . . . . . 4/imm32 # subtract 4 from *EAX
|
|
# save out
|
|
50/push-EAX
|
|
# EAX = _append-4(EAX+4, EAX+size, curr, max) # clobbering ECX
|
|
# . . push args
|
|
53/push-EBX
|
|
52/push-EDX
|
|
# . . push EAX+size (clobbering ECX)
|
|
01/add 3/mod/direct 1/rm32/ECX . . . 0/r32/EAX . . # add EAX to ECX
|
|
51/push-ECX
|
|
# . . push EAX+4 (clobbering EAX)
|
|
81 0/subop/add 3/mod/direct 0/rm32/EAX . . . . . 4/imm32 # add to EAX
|
|
50/push-EAX
|
|
# . . call
|
|
e8/call _append-4/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0x10/imm32 # add to ESP
|
|
# restore out (assumes _append-4 can't error)
|
|
58/pop-to-EAX
|
|
$slice-to-string:end:
|
|
# . restore registers
|
|
5e/pop-to-ESI
|
|
5b/pop-to-EBX
|
|
5a/pop-to-EDX
|
|
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
|
|
|
|
$slice-to-string:abort:
|
|
# . _write(2/stderr, error)
|
|
# . . push args
|
|
68/push "slice-to-string: out of space\n"/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
|
|
# . syscall(exit, 1)
|
|
bb/copy-to-EBX 1/imm32
|
|
b8/copy-to-EAX 1/imm32/exit
|
|
cd/syscall 0x80/imm8
|
|
# never gets here
|
|
|
|
test-slice-to-string:
|
|
# . prolog
|
|
55/push-EBP
|
|
89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP
|
|
# var heap/EDX : (address allocation-descriptor) = {0, 0}
|
|
68/push 0/imm32/limit
|
|
68/push 0/imm32/curr
|
|
89/copy 3/mod/direct 2/rm32/EDX . . . 4/r32/ESP . . # copy ESP to EDX
|
|
# heap = new-segment(512)
|
|
# . . push args
|
|
52/push-EDX
|
|
68/push 0x200/imm32
|
|
# . . call
|
|
e8/call new-segment/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
# (EAX..ECX) = "Abc"
|
|
b8/copy-to-EAX "Abc"/imm32
|
|
8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX
|
|
8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX
|
|
05/add-to-EAX 4/imm32
|
|
# var slice/ECX = {EAX, ECX}
|
|
51/push-ECX
|
|
50/push-EAX
|
|
89/copy 3/mod/direct 1/rm32/ECX . . . 4/r32/ESP . . # copy ESP to ECX
|
|
# EAX = slice-to-string(heap, slice)
|
|
# . . push args
|
|
51/push-ECX
|
|
52/push-EDX
|
|
# . . call
|
|
e8/call slice-to-string/disp32
|
|
# . . discard args
|
|
81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP
|
|
#? # 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
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#? # . write(2/stderr, EAX)
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#? # . . push args
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#? 50/push-EAX
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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, "$\n")
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#? # . . push args
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#? 68/push "$\n"/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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#? # }}}
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# EAX = string-equal?(EAX, "Abc")
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# . . push args
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68/push "Abc"/imm32
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50/push-EAX
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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-slice-to-string"/imm32
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68/push 1/imm32/true
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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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# . 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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# . . vim:nowrap:textwidth=0
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