source:
trunk/minix/lib/i386/em/em_csa4.s@
10
| Last change on this file since 10 was 9, checked in by , 15 years ago | |
|---|---|
| File size: 435 bytes | |
| Rev | Line | |
|---|---|---|
| [9] | 1 | .sect .text; .sect .rom; .sect .data; .sect .bss |
| 2 | .define .csa4 | |
| 3 | ||
| 4 | .sect .text | |
| 5 | .csa4: | |
| 6 | ! ebx, descriptor address | |
| 7 | ! eax, index | |
| 8 | mov edx,(ebx) ! default | |
| 9 | sub eax,4(ebx) | |
| 10 | cmp eax,8(ebx) | |
| 11 | ja 1f | |
| 12 | sal eax,2 | |
| 13 | add ebx,eax | |
| 14 | mov ebx,12(ebx) | |
| 15 | test ebx,ebx | |
| 16 | jnz 2f | |
| 17 | 1: | |
| 18 | mov ebx,edx | |
| 19 | test ebx,ebx | |
| 20 | jnz 2f | |
| 21 | .extern ECASE | |
| 22 | .extern .fat | |
| 23 | mov eax,ECASE | |
| 24 | push eax | |
| 25 | jmp .fat | |
| 26 | 2: | |
| 27 | jmp ebx |
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