diff options
| author | Kartik Agaram <vc@akkartik.com> | 2018-10-16 23:02:42 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-10-16 23:02:42 -0700 |
| commit | 04be5eb2aead455137a756a7eff47cc31d08f4e3 (patch) | |
| tree | b513346ad639b33a6d3f66a6e311054849962281 /subx/apps/factorial.subx | |
| parent | ca5a3fcb12b00498d198902edf57472248cbfc63 (diff) | |
| download | mu-04be5eb2aead455137a756a7eff47cc31d08f4e3.tar.gz | |
4703
Diffstat (limited to 'subx/apps/factorial.subx')
| -rw-r--r-- | subx/apps/factorial.subx | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/subx/apps/factorial.subx b/subx/apps/factorial.subx index 1ed438e6..282ec9ae 100644 --- a/subx/apps/factorial.subx +++ b/subx/apps/factorial.subx @@ -39,7 +39,7 @@ # then return run-tests() e8/call run-tests/disp32 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 0/r32/EAX Num-test-failures/disp32 # copy *Num-test-failures to EAX - eb/jump $main:exit/disp8 # where EAX will get copied to EBX + eb/jump $main:end/disp8 # where EAX will get copied to EBX # else EAX = factorial(5) $run-main: # push arg @@ -48,7 +48,7 @@ $run-main: e8/call factorial/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP -$main:exit: +$main:end: # exit(EAX) 89/copy 3/mod/direct 3/rm32/EBX . . . 0/r32/EAX . . # copy EAX to EBX b8/copy-to-EAX 1/imm32 @@ -64,7 +64,7 @@ factorial: b8/copy-to-EAX 1/imm32 # if (n <= 1) jump exit 81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 8/disp8 1/imm32 # compare *(EBP+8) - 7e/jump-if-<= $factorial:exit/disp8 + 7e/jump-if-<= $factorial:end/disp8 # EBX = n-1 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 3/r32/EBX 8/disp8 . # copy *(EBP+8) to EBX 81 5/subop/subtract 3/mod/direct 3/rm32/EBX . . . . . 1/imm32 # subtract from EBX @@ -78,7 +78,7 @@ factorial: # return n * factorial(n-1) f7 4/subop/multiply 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 8/disp8 . # multiply *(EBP+8) into EAX # TODO: check for overflow -$factorial:exit: +$factorial:end: # epilog 5b/pop-to-EBX 89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP |