diff options
Diffstat (limited to 'subx/051test.subx')
| -rw-r--r-- | subx/051test.subx | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/subx/051test.subx b/subx/051test.subx deleted file mode 100644 index 6f8cda7a..00000000 --- a/subx/051test.subx +++ /dev/null @@ -1,93 +0,0 @@ -# Rudimentary test harness - -== code -# instruction effective address register displacement immediate -# . op subop mod rm32 base index scale r32 -# . 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 - -Entry: # manual test - # check-ints-equal(34, 34) - # . . push args - 68/push "error in check-ints-equal"/imm32 - 68/push 34/imm32 - 68/push 34/imm32 - # . . call - e8/call check-ints-equal/disp32 - # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP - # syscall(exit, 0) - bb/copy-to-EBX 0/imm32 - b8/copy-to-EAX 1/imm32/exit - cd/syscall 0x80/imm8 - -# print msg to stderr if a != b, otherwise print "." -check-ints-equal: # (a : int, b : int, msg : (address array byte)) -> <void> - # . 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 - 53/push-EBX - # load first 2 args into EAX and EBX - 8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 0/r32/EAX 8/disp8 . # copy *(EBP+8) to EAX - 8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 3/r32/EBX 0xc/disp8 . # copy *(EBP+12) to EBX - # if (EAX == EBX) success - 39/compare 3/mod/direct 0/rm32/EAX . . . 3/r32/EBX . . # compare EAX and EBX - 75/jump-if-unequal $check-ints-equal:else/disp8 - # . _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 - # . return - eb/jump $check-ints-equal:end/disp8 - # otherwise print error message -$check-ints-equal:else: - # . _write(2/stderr, msg) - # . . push args - 8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 1/r32/ECX 0x10/disp8 . # copy *(EBP+16) to ECX - 51/push-ECX - 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, Newline) - # . . 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 - # increment Num-test-failures - ff 0/subop/increment 0/mod/indirect 5/rm32/.disp32 . . . Num-test-failures/disp32 # increment *Num-test-failures -$check-ints-equal:end: - # . restore registers - 5b/pop-to-EBX - 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 - -== data - -# length-prefixed string containing just a single newline -# convenient to have when printing messages and so on -Newline: - # size - 1/imm32 - # data - 0a/newline - -# every test failure increments this counter -Num-test-failures: - 0/imm32 - -# . . vim:nowrap:textwidth=0 |