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b2441318 | 1 | ! SPDX-License-Identifier: GPL-2.0 |
086e9dc0 JH |
2 | ! Copyright (C) 2012 by Imagination Technologies Ltd. |
3 | ! | |
4 | ! 64-bit unsigned compare routine. | |
5 | ! | |
6 | ||
7 | .text | |
8 | .global ___ucmpdi2 | |
9 | .type ___ucmpdi2,function | |
10 | ||
11 | ! low high | |
12 | ! u64 a (D0Ar2, D1Ar1) | |
13 | ! u64 b (D0Ar4, D1Ar3) | |
14 | ___ucmpdi2: | |
15 | ! start at 1 (equal) and conditionally increment or decrement | |
16 | MOV D0Re0,#1 | |
17 | ||
18 | ! high words | |
19 | CMP D1Ar1,D1Ar3 | |
20 | ! or if equal, low words | |
21 | CMPEQ D0Ar2,D0Ar4 | |
22 | ||
23 | ! unsigned compare | |
24 | SUBLO D0Re0,D0Re0,#1 | |
25 | ADDHI D0Re0,D0Re0,#1 | |
26 | ||
27 | MOV PC,D1RtP | |
28 | .size ___ucmpdi2,.-___ucmpdi2 |