| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */
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| 2 | /*
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| 3 | * Quadword loads and stores
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| 4 | * for use in instruction emulation.
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| 5 | *
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| 6 | * Copyright 2017 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
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| 7 | */
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| 8 |
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| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | |
| 14 | |
| 15 |
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| 16 | /* do_lq(unsigned long ea, unsigned long *regs) */
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| 17 | _GLOBAL(do_lq)
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| 18 | 1: lq r6, 0(r3)
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| 19 | std r6, 0(r4)
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| 20 | std r7, 8(r4)
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| 21 | li r3, 0
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| 22 | blr
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| 23 | 2: li r3, -EFAULT
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| 24 | blr
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| 25 | EX_TABLE(1b, 2b)
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| 26 |
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| 27 | /* do_stq(unsigned long ea, unsigned long val0, unsigned long val1) */
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| 28 | _GLOBAL(do_stq)
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| 29 | 1: stq r4, 0(r3)
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| 30 | li r3, 0
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| 31 | blr
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| 32 | 2: li r3, -EFAULT
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| 33 | blr
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| 34 | EX_TABLE(1b, 2b)
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| 35 |
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| 36 | /* do_lqarx(unsigned long ea, unsigned long *regs) */
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| 37 | _GLOBAL(do_lqarx)
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| 38 | 1: PPC_LQARX(6, 0, 3, 0)
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| 39 | std r6, 0(r4)
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| 40 | std r7, 8(r4)
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| 41 | li r3, 0
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| 42 | blr
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| 43 | 2: li r3, -EFAULT
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| 44 | blr
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| 45 | EX_TABLE(1b, 2b)
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| 46 |
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| 47 | /* do_stqcx(unsigned long ea, unsigned long val0, unsigned long val1,
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| 48 | unsigned int *crp) */
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| 49 |
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| 50 | _GLOBAL(do_stqcx)
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| 51 | 1: PPC_STQCX(4, 0, 3)
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| 52 | mfcr r5
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| 53 | stw r5, 0(r6)
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| 54 | li r3, 0
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| 55 | blr
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| 56 | 2: li r3, -EFAULT
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| 57 | blr
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| 58 | EX_TABLE(1b, 2b)
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