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Lines 299-305
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*/ |
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*/ |
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#define alternative(oldinstr, newinstr, feature) \ |
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#define alternative(oldinstr, newinstr, feature) \ |
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asm volatile ("661:\n\t" oldinstr "\n662:\n" \ |
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asm volatile ("661:\n\t" oldinstr "\n662:\n" \ |
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".section .altinstructions,\"a\"\n" \ |
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".section .altinstructions,\"aw\"\n" \ |
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" .align 4\n" \ |
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" .align 4\n" \ |
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" .long 661b\n" /* label */ \ |
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" .long 661b\n" /* label */ \ |
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" .long 663f\n" /* new instruction */ \ |
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" .long 663f\n" /* new instruction */ \ |
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Lines 307-313
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" .byte 662b-661b\n" /* sourcelen */ \ |
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" .byte 662b-661b\n" /* sourcelen */ \ |
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" .byte 664f-663f\n" /* replacementlen */ \ |
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" .byte 664f-663f\n" /* replacementlen */ \ |
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".previous\n" \ |
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".previous\n" \ |
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".section .altinstr_replacement,\"ax\"\n" \ |
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".section .altinstr_replacement,\"awx\"\n" \ |
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"663:\n\t" newinstr "\n664:\n" /* replacement */ \ |
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"663:\n\t" newinstr "\n664:\n" /* replacement */ \ |
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".previous" :: "i" (feature) : "memory") |
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".previous" :: "i" (feature) : "memory") |
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Lines 323-329
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*/ |
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*/ |
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#define alternative_input(oldinstr, newinstr, feature, input) \ |
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#define alternative_input(oldinstr, newinstr, feature, input) \ |
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asm volatile ("661:\n\t" oldinstr "\n662:\n" \ |
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asm volatile ("661:\n\t" oldinstr "\n662:\n" \ |
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".section .altinstructions,\"a\"\n" \ |
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".section .altinstructions,\"aw\"\n" \ |
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" .align 4\n" \ |
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" .align 4\n" \ |
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" .long 661b\n" /* label */ \ |
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" .long 661b\n" /* label */ \ |
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" .long 663f\n" /* new instruction */ \ |
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" .long 663f\n" /* new instruction */ \ |
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Lines 331-337
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" .byte 662b-661b\n" /* sourcelen */ \ |
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" .byte 662b-661b\n" /* sourcelen */ \ |
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" .byte 664f-663f\n" /* replacementlen */ \ |
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" .byte 664f-663f\n" /* replacementlen */ \ |
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".previous\n" \ |
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".previous\n" \ |
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".section .altinstr_replacement,\"ax\"\n" \ |
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".section .altinstr_replacement,\"awx\"\n" \ |
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"663:\n\t" newinstr "\n664:\n" /* replacement */ \ |
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"663:\n\t" newinstr "\n664:\n" /* replacement */ \ |
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".previous" :: "i" (feature), input) |
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".previous" :: "i" (feature), input) |
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