source:
trunk/minix/lib/i86/em/em_cms.s@
20
Last change on this file since 20 was 9, checked in by , 14 years ago | |
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File size: 276 bytes |
Rev | Line | |
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[9] | 1 | .define .cms |
2 | ||
3 | ! #bytes in cx | |
4 | .text | |
5 | .cms: | |
6 | pop bx ! return address | |
7 | mov dx,sp | |
8 | push si | |
9 | push di | |
10 | mov si,dx | |
11 | add dx,cx | |
12 | mov di,dx | |
13 | add dx,cx | |
14 | sar cx,#1 | |
15 | repe | |
16 | cmp | |
17 | je 1f | |
18 | inc cx | |
19 | 1: | |
20 | pop di | |
21 | pop si | |
22 | mov sp,dx | |
23 | jmp (bx) |
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