diff options
| -rwxr-xr-x | subx/apps/factorial | bin | 1210 -> 1200 bytes | |||
| -rw-r--r-- | subx/apps/factorial.subx | 8 |
2 files changed, 0 insertions, 8 deletions
diff --git a/subx/apps/factorial b/subx/apps/factorial index bc4c7711..00904aee 100755 --- a/subx/apps/factorial +++ b/subx/apps/factorial Binary files differdiff --git a/subx/apps/factorial.subx b/subx/apps/factorial.subx index 209206ca..3dd8bdaa 100644 --- a/subx/apps/factorial.subx +++ b/subx/apps/factorial.subx @@ -63,19 +63,11 @@ factorial: # EBX: n-1 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 3/r32/EBX 4/disp8 . # copy *(ESP+4) to EBX 81 5/subop/subtract 3/mod/direct 3/rm32/EBX . . . . . 1/imm32 # subtract 1 from EBX - # prepare call - 55/push-EBP - 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP # EAX: factorial(n-1) 53/push-EBX e8/call . . . . . . factorial/disp32 # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add 4 to ESP - # clean up after call - 89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP - 5d/pop . . . . . . . . # pop to EBP - # refresh n - 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 2/r32/EDX 4/disp8 . # copy *(ESP+4) to EDX # return n * factorial(n-1) f7 4/subop/multiply 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 4/disp8 . # multiply *(ESP+4) (n) into EAX (factorial(n-1)) # TODO: check for overflow |