wok-tiny annotate x86test/stuff/patch.S @ rev 181
x86test: add a patch for NMOS 8088
| author | Pascal Bellard <pascal.bellard@slitaz.org> |
|---|---|
| date | Wed Sep 20 13:53:13 2023 +0000 (8 months ago) |
| parents | |
| children | 34a0a4406539 |
| rev | line source |
|---|---|
| pascal@181 | 1 .code16 |
| pascal@181 | 2 |
| pascal@181 | 3 .org 0xc3 |
| pascal@181 | 4 str_8086: .string "8086 (16-bit NMOS)" |
| pascal@181 | 5 str_8088: .string "8088 (8-bit NMOS)" |
| pascal@181 | 6 str_80C86: .string "80C86 (16-bit CMOS)" |
| pascal@181 | 7 str_80C88: .string "80C88 (8-bit CMOS)" |
| pascal@181 | 8 str_80186: .string "80186 (16-bit)" |
| pascal@181 | 9 str_80188: .string "80188 (8-bit)" |
| pascal@181 | 10 str_80286: .string "80286" |
| pascal@181 | 11 |
| pascal@181 | 12 test_width8_16: |
| pascal@181 | 13 |
| pascal@181 | 14 .org 0x18a |
| pascal@181 | 15 test8086_88: |
| pascal@181 | 16 pushf |
| pascal@181 | 17 xorw %cx, %cx |
| pascal@181 | 18 movw %cx, %es |
| pascal@181 | 19 es movw 0x46c, %bx # BIOS tick count l.o. word |
| pascal@181 | 20 1: pushw %cx |
| pascal@181 | 21 sti |
| pascal@181 | 22 rep cs lodsb |
| pascal@181 | 23 cli |
| pascal@181 | 24 orw %cx, %cx |
| pascal@181 | 25 popw %cx |
| pascal@181 | 26 movw $str_8088, %ax |
| pascal@181 | 27 movw $str_8086, %si |
| pascal@181 | 28 jnz nmos_8086_88 |
| pascal@181 | 29 movb $str_80C88, %al |
| pascal@181 | 30 movw $str_80C86, %si |
| pascal@181 | 31 es cmpw 0x046c, %bx |
| pascal@181 | 32 loope 1b |
| pascal@181 | 33 nmos_8086_88: popf |
| pascal@181 | 34 call test_width8_16 |
| pascal@181 | 35 jz 1f |
| pascal@181 | 36 xchgw %ax, %si |
| pascal@181 | 37 1: ret |
| pascal@181 | 38 |
| pascal@181 | 39 .org 0x1bb |