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| author | Kartik K. Agaram <vc@akkartik.com> | 2018-06-27 22:58:08 -0700 |
|---|---|---|
| committer | Kartik K. Agaram <vc@akkartik.com> | 2018-06-27 22:58:08 -0700 |
| commit | 5cce54ebf3088b0411e4026de0545f3f9eb01828 (patch) | |
| tree | ecc08ed4eb1dd593789961291308984d6ea63cce | |
| parent | 582875bf3ae0a9e266fe9b49b93b8b8e1748c918 (diff) | |
| download | mu-5cce54ebf3088b0411e4026de0545f3f9eb01828.tar.gz | |
4280 - fix test program to use subx instructions
I don't know how to tell nasm to generate an imm32. It's a minor stepping-stone anyway; just emit the machine code directly.
| -rwxr-xr-x | subx/teensy/test5 | bin | 91 -> 99 bytes | |||
| -rw-r--r-- | subx/teensy/test5.s | 11 |
2 files changed, 7 insertions, 4 deletions
diff --git a/subx/teensy/test5 b/subx/teensy/test5 index da1c8cd6..a67a5299 100755 --- a/subx/teensy/test5 +++ b/subx/teensy/test5 Binary files differdiff --git a/subx/teensy/test5.s b/subx/teensy/test5.s index 3049615a..54a79846 100644 --- a/subx/teensy/test5.s +++ b/subx/teensy/test5.s @@ -35,9 +35,12 @@ phdr: ; Elf32_Phdr phdrsize equ $ - phdr _start: - mov bl, 42 - xor eax, eax - inc eax - int 0x80 + mov ebx, 42 + xor eax, eax + ; add eax, 0x00000001 + db 0x81 ; op + db 0xc0 ; modr/m + dd 0x00000001 ; imm32 operand + int 0x80 filesize equ $ - $$ |