diff options
Diffstat (limited to 'subx/examples/ex7.subx')
| -rw-r--r-- | subx/examples/ex7.subx | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/subx/examples/ex7.subx b/subx/examples/ex7.subx index 615f5d21..2cf65ab3 100644 --- a/subx/examples/ex7.subx +++ b/subx/examples/ex7.subx @@ -15,13 +15,13 @@ # 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) + # syscall(creat, filename) bb/copy-to-EBX filename/imm32 b9/copy-to-ECX 0x180/imm32/fixed-perms b8/copy-to-EAX 8/imm32/creat cd/syscall 0x80/imm8 - # stream = open(filename, O_WRONLY, 0) # we can't use 'fd' because it looks like a hex byte + # stream = syscall(open, filename, O_WRONLY, 0) # we can't use 'fd' because it looks like a hex byte bb/copy-to-EBX filename/imm32 b9/copy-to-ECX 1/imm32/wronly ba/copy-to-EDX 0x180/imm32/fixed-perms @@ -31,7 +31,7 @@ bb/copy-to-EBX stream/imm32 89/copy 0/mod/indirect 3/rm32/EBX . . . 0/r32/EAX . . # copy EAX to *EBX - # write(stream, "a", 1) + # syscall(write, stream, "a", 1) # load stream bb/copy-to-EBX stream/imm32 8b/copy 0/mod/indirect 3/rm32/EBX . . . 3/r32/EBX . . # copy *EBX to EBX @@ -41,7 +41,7 @@ b8/copy-to-EAX 4/imm32/write cd/syscall 0x80/imm8 - # close(stream) + # syscall(close, stream) # load stream bb/copy-to-EBX stream/imm32 8b/copy 0/mod/indirect 3/rm32/EBX . . . 3/r32/EBX . . # copy *EBX to EBX @@ -49,7 +49,7 @@ b8/copy-to-EAX 6/imm32/close cd/syscall 0x80/imm8 - # stream = open(filename, O_RDONLY, 0) + # stream = syscall(open, filename, O_RDONLY, 0) bb/copy-to-EBX filename/imm32 b9/copy-to-ECX 0/imm32/rdonly ba/copy-to-EDX 0x180/imm32/fixed-perms @@ -59,7 +59,7 @@ bb/copy-to-EBX stream/imm32 89/copy 0/mod/indirect 3/rm32/EBX . . . 0/r32/EAX . . # copy EAX to *EBX - # read(stream, b, 1) + # syscall(read, stream, b, 1) # load stream bb/copy-to-EBX stream/imm32 8b/copy 0/mod/indirect 3/rm32/EBX . . . 3/r32/EBX . . # copy *EBX to EBX @@ -69,7 +69,7 @@ b8/copy-to-EAX 3/imm32/read cd/syscall 0x80/imm8 - # close(stream) + # syscall(close, stream) # load stream bb/copy-to-EBX stream/imm32 8b/copy 0/mod/indirect 3/rm32/EBX . . . 3/r32/EBX . . # copy *EBX to EBX @@ -77,12 +77,12 @@ b8/copy-to-EAX 6/imm32/close cd/syscall 0x80/imm8 - # unlink(filename) + # syscall(unlink, filename) bb/copy-to-EBX filename/imm32 b8/copy-to-EAX 0xa/imm32/unlink cd/syscall 0x80/imm8 - # exit(b) + # syscall(exit, b) # load b bb/copy-to-EBX b/imm32 8b/copy 0/mod/indirect 3/rm32/EBX . . . 3/r32/EBX . . # copy *EBX to EBX |