source:
trunk/minix/lib/i86/em/em_csb2.s@
16
| Last change on this file since 16 was 9, checked in by , 14 years ago | |
|---|---|
| File size: 318 bytes | |
| Rev | Line | |
|---|---|---|
| [9] | 1 | .define .csb2 |
| 2 | ||
| 3 | .text | |
| 4 | .csb2: | |
| 5 | !bx, descriptor address | |
| 6 | !ax, index | |
| 7 | mov dx,(bx) | |
| 8 | mov cx,2(bx) | |
| 9 | 1: | |
| 10 | add bx,#4 | |
| 11 | dec cx | |
| 12 | jl 4f | |
| 13 | cmp ax,(bx) | |
| 14 | jne 1b | |
| 15 | mov bx,2(bx) | |
| 16 | 2: | |
| 17 | test bx,bx | |
| 18 | jnz 3f | |
| 19 | ECASE = 20 | |
| 20 | .extern .fat | |
| 21 | mov ax,#ECASE | |
| 22 | push ax | |
| 23 | jmp .fat | |
| 24 | 3: | |
| 25 | jmp (bx) | |
| 26 | 4: | |
| 27 | mov bx,dx | |
| 28 | jmp 2b |
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