source:
trunk/minix/lib/i86/em/em_rck.s@
20
| Last change on this file since 20 was 9, checked in by , 14 years ago | |
|---|---|
| File size: 247 bytes | |
| Line | |
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| 1 | .define .rck |
| 2 | .text |
| 3 | |
| 4 | ! descriptor address in bx |
| 5 | ! value in ax, must be left there |
| 6 | .rck: |
| 7 | cmp ax,(bx) |
| 8 | jl 2f |
| 9 | cmp ax,2(bx) |
| 10 | jg 2f |
| 11 | ret |
| 12 | 2: |
| 13 | push ax |
| 14 | ERANGE = 1 |
| 15 | .extern .error |
| 16 | mov ax,#ERANGE |
| 17 | call .error |
| 18 | pop ax |
| 19 | ret |
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