source:
trunk/minix/lib/i86/int64/make64.s@
20
| Last change on this file since 20 was 9, checked in by , 15 years ago | |
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| File size: 358 bytes | |
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| 1 | ! make64() - make a 64 bit number from two 32 bit halves |
| 2 | ! Author: Kees J. Bot |
| 3 | ! 24 Dec 1995 |
| 4 | .sect .text |
| 5 | .define _make64 |
| 6 | |
| 7 | _make64: ! u64_t make64(unsigned long lo, unsigned long hi); |
| 8 | mov bx, sp |
| 9 | mov ax, 4(bx) |
| 10 | mov dx, 6(bx) |
| 11 | mov cx, 8(bx) |
| 12 | push 10(bx) |
| 13 | mov bx, 2(bx) |
| 14 | mov (bx), ax |
| 15 | mov 2(bx), dx |
| 16 | mov 4(bx), cx |
| 17 | pop 6(bx) |
| 18 | mov ax, bx |
| 19 | ret |
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