diff options
Diffstat (limited to 'subx/examples/ex7.subx')
| -rw-r--r-- | subx/examples/ex7.subx | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/subx/examples/ex7.subx b/subx/examples/ex7.subx index 6e0294d9..c3265c21 100644 --- a/subx/examples/ex7.subx +++ b/subx/examples/ex7.subx @@ -15,78 +15,78 @@ # 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 - ## creat(filename) + # creat(filename) bb/copy . . . . . . . filename/imm32 # copy to EBX b9/copy . . . . . . . 0x180/imm32/fixed-perms # copy to ECX b8/copy . . . . . . . 8/imm32/creat # copy 8 to EAX cd/syscall . . . . . . . 0x80/imm8 # int 80h - ## stream = open(filename, O_WRONLY, 0) # we can't use 'fd' because it looks like a hex byte + # stream = open(filename, O_WRONLY, 0) # we can't use 'fd' because it looks like a hex byte bb/copy . . . . . . . filename/imm32 # copy to EBX b9/copy . . . . . . . 1/imm32/wronly # copy 1 to ECX ba/copy . . . . . . . 0x180/imm32/fixed-perms # copy 0 to EDX b8/copy . . . . . . . 5/imm32/open # copy 5 to EAX cd/syscall . . . . . . . 0x80/imm8 # int 80h - # save stream + # save stream bb/copy . . . . . . . stream/imm32 # copy to EBX 89/copy 0/mod/indirect 3/rm32/EBX 0/r32/EAX # copy EAX to *EBX - ## write(stream, "a", 1) - # load stream + # write(stream, "a", 1) + # load stream bb/copy . . . . . . . stream/imm32 # copy to EBX 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX # copy *EBX to EBX - # + # b9/copy . . . . . . . a/imm32 # copy to ECX ba/copy . . . . . . . 1/imm32/size # copy 1 to EDX b8/copy . . . . . . . 4/imm32/write # copy 4 to EAX cd/syscall . . . . . . . 0x80/imm8 # int 80h - ## close(stream) - # load stream + # close(stream) + # load stream bb/copy . . . . . . . stream/imm32 # copy to EBX 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX # copy *EBX to EBX - # + # b8/copy . . . . . . . 6/imm32/close # copy 6 to EAX cd/syscall . . . . . . . 0x80/imm8 # int 80h - ## stream = open(filename, O_RDONLY, 0) + # stream = open(filename, O_RDONLY, 0) bb/copy . . . . . . . filename/imm32 # copy to EBX b9/copy . . . . . . . 0/imm32/rdonly # copy 0 to ECX ba/copy . . . . . . . 0x180/imm32/fixed-perms # copy to EDX b8/copy . . . . . . . 5/imm32/open # copy 5 to EAX cd/syscall . . . . . . . 0x80/imm8 # int 80h - # save stream + # save stream bb/copy . . . . . . . stream/imm32 # copy to EBX 89/copy 0/mod/indirect 3/rm32/EBX 0/r32/EAX # copy EAX to *EBX - ## read(stream, b, 1) - # load stream + # read(stream, b, 1) + # load stream bb/copy . . . . . . . stream/imm32 # copy to EBX 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX # copy *EBX to EBX - # + # b9/copy . . . . . . . b/imm32 # copy to ECX ba/copy . . . . . . . 1/imm32/size # copy 1 to EDX b8/copy . . . . . . . 3/imm32/read # copy 3 to EAX cd/syscall . . . . . . . 0x80/imm8 # int 80h - ## close(stream) - # load stream + # close(stream) + # load stream bb/copy . . . . . . . stream/imm32 # copy to EBX 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX # copy *EBX to EBX - # + # b8/copy . . . . . . . 6/imm32/close # copy 6 to EAX cd/syscall . . . . . . . 0x80/imm8 # int 80h - ## unlink(filename) + # unlink(filename) bb/copy . . . . . . . filename/imm32 # copy to EBX b8/copy . . . . . . . 0xa/imm32/unlink # copy 10 to EAX cd/syscall . . . . . . . 0x80/imm8 # int 80h - ## exit(b) - # load b + # exit(b) + # load b bb/copy . . . . . . . b/imm32 # copy to EBX 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX # copy *EBX to EBX - # + # b8/copy . . . . . . . 1/imm32/exit # copy 1 to EAX cd/syscall . . . . . . . 0x80/imm8 # int 80h |