diff options
Diffstat (limited to 'subx/apps')
| -rw-r--r-- | subx/apps/crenshaw2-1.subx | 12 | ||||
| -rw-r--r-- | subx/apps/factorial.subx | 4 |
2 files changed, 8 insertions, 8 deletions
diff --git a/subx/apps/crenshaw2-1.subx b/subx/apps/crenshaw2-1.subx index 400a0bfe..d5bd2a01 100644 --- a/subx/apps/crenshaw2-1.subx +++ b/subx/apps/crenshaw2-1.subx @@ -27,8 +27,8 @@ # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # exit(0) - bb/copy . . . . . . . 0/imm32 # copy to EBX - b8/copy . . . . . . . 1/imm32/exit # copy to EAX + bb/copy-to-EBX 0/imm32 + b8/copy-to-EAX 1/imm32/exit cd/syscall 0x80/imm8 ## helpers @@ -44,8 +44,8 @@ abort: # s : (address array byte) -> <void> # discard arg 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # exit(1) - bb/copy . . . . . . . 1/imm32 # copy to EBX - b8/copy . . . . . . . 1/imm32/exit # copy to EAX + bb/copy-to-EBX 1/imm32 + b8/copy-to-EAX 1/imm32/exit cd/syscall 0x80/imm8 # print out "Error: #{s} expected\n" to stderr @@ -92,7 +92,7 @@ write-stdout: # s : (address array byte) -> <void> 53/push-EBX # write(1/stdout, (data) s+4, (size) *s) # fd = 1 (stdout) - bb/copy . . . . . . . 1/imm32 # copy to EBX + bb/copy-to-EBX 1/imm32 # x = s+4 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX 81 0/subop/add 3/mod/direct 1/rm32/ECX . . . . . 4/imm32 # add to ECX @@ -100,7 +100,7 @@ write-stdout: # s : (address array byte) -> <void> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 2/r32/EDX 8/disp8 . # copy *(EBP+8) to EDX 8b/copy 0/mod/indirect 2/rm32/EDX . . . 2/r32/EDX . . # copy *EDX to EDX # call write() - b8/copy . . . . . . . 4/imm32/write # copy to EAX + b8/copy-to-EAX 4/imm32/write cd/syscall 0x80/imm8 # restore registers 5b/pop-to-EBX diff --git a/subx/apps/factorial.subx b/subx/apps/factorial.subx index c3b63209..fa0d58b2 100644 --- a/subx/apps/factorial.subx +++ b/subx/apps/factorial.subx @@ -50,7 +50,7 @@ $run-main: $main-exit: # exit(EAX) 89/copy 3/mod/direct 3/rm32/EBX . . . 0/r32/EAX . . # copy EAX to EBX - b8/copy . . . . . . . 1/imm32 # copy to EAX + b8/copy-to-EAX 1/imm32 cd/syscall 0x80/imm8 # factorial(n) @@ -60,7 +60,7 @@ factorial: 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP 53/push-EBX # initialize EAX to 1 (base case) - b8/copy . . . . . . . 1/imm32 # copy to EAX + 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 |