Commit | Line | Data |
---|---|---|
086e9dc0 JH |
1 | ! Copyright (C) 2012 by Imagination Technologies Ltd. |
2 | ! | |
3 | ! 64-bit unsigned compare routine. | |
4 | ! | |
5 | ||
6 | .text | |
7 | .global ___ucmpdi2 | |
8 | .type ___ucmpdi2,function | |
9 | ||
10 | ! low high | |
11 | ! u64 a (D0Ar2, D1Ar1) | |
12 | ! u64 b (D0Ar4, D1Ar3) | |
13 | ___ucmpdi2: | |
14 | ! start at 1 (equal) and conditionally increment or decrement | |
15 | MOV D0Re0,#1 | |
16 | ||
17 | ! high words | |
18 | CMP D1Ar1,D1Ar3 | |
19 | ! or if equal, low words | |
20 | CMPEQ D0Ar2,D0Ar4 | |
21 | ||
22 | ! unsigned compare | |
23 | SUBLO D0Re0,D0Re0,#1 | |
24 | ADDHI D0Re0,D0Re0,#1 | |
25 | ||
26 | MOV PC,D1RtP | |
27 | .size ___ucmpdi2,.-___ucmpdi2 |