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 | |
| Rev | Line | |
|---|---|---|
| [9] | 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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