sparc32: debride memcpy.S a bit (fb2e6fdb) · Commits · 戴 / test

arch/sparc/lib/memcpy.S

+0 −79

Original line number	Diff line number	Diff line
		@@ -59,88 +59,9 @@ x:
		stb %t0, [%dst - (offset) - 0x02]; \
		stb %t1, [%dst - (offset) - 0x01];

		/* Both these macros have to start with exactly the same insn */
		#define RMOVE_BIGCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, t7) \
		ldd [%src - (offset) - 0x20], %t0; \
		ldd [%src - (offset) - 0x18], %t2; \
		ldd [%src - (offset) - 0x10], %t4; \
		ldd [%src - (offset) - 0x08], %t6; \
		st %t0, [%dst - (offset) - 0x20]; \
		st %t1, [%dst - (offset) - 0x1c]; \
		st %t2, [%dst - (offset) - 0x18]; \
		st %t3, [%dst - (offset) - 0x14]; \
		st %t4, [%dst - (offset) - 0x10]; \
		st %t5, [%dst - (offset) - 0x0c]; \
		st %t6, [%dst - (offset) - 0x08]; \
		st %t7, [%dst - (offset) - 0x04];

		#define RMOVE_BIGALIGNCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, t7) \
		ldd [%src - (offset) - 0x20], %t0; \
		ldd [%src - (offset) - 0x18], %t2; \
		ldd [%src - (offset) - 0x10], %t4; \
		ldd [%src - (offset) - 0x08], %t6; \
		std %t0, [%dst - (offset) - 0x20]; \
		std %t2, [%dst - (offset) - 0x18]; \
		std %t4, [%dst - (offset) - 0x10]; \
		std %t6, [%dst - (offset) - 0x08];

		#define RMOVE_LASTCHUNK(src, dst, offset, t0, t1, t2, t3) \
		ldd [%src + (offset) + 0x00], %t0; \
		ldd [%src + (offset) + 0x08], %t2; \
		st %t0, [%dst + (offset) + 0x00]; \
		st %t1, [%dst + (offset) + 0x04]; \
		st %t2, [%dst + (offset) + 0x08]; \
		st %t3, [%dst + (offset) + 0x0c];

		#define RMOVE_SHORTCHUNK(src, dst, offset, t0, t1) \
		ldub [%src + (offset) + 0x00], %t0; \
		ldub [%src + (offset) + 0x01], %t1; \
		stb %t0, [%dst + (offset) + 0x00]; \
		stb %t1, [%dst + (offset) + 0x01];

		#define SMOVE_CHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, prev, shil, shir, offset2) \
		ldd [%src + (offset) + 0x00], %t0; \
		ldd [%src + (offset) + 0x08], %t2; \
		srl %t0, shir, %t5; \
		srl %t1, shir, %t6; \
		sll %t0, shil, %t0; \
		or %t5, %prev, %t5; \
		sll %t1, shil, %prev; \
		or %t6, %t0, %t0; \
		srl %t2, shir, %t1; \
		srl %t3, shir, %t6; \
		sll %t2, shil, %t2; \
		or %t1, %prev, %t1; \
		std %t4, [%dst + (offset) + (offset2) - 0x04]; \
		std %t0, [%dst + (offset) + (offset2) + 0x04]; \
		sll %t3, shil, %prev; \
		or %t6, %t2, %t4;

		#define SMOVE_ALIGNCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, prev, shil, shir, offset2) \
		ldd [%src + (offset) + 0x00], %t0; \
		ldd [%src + (offset) + 0x08], %t2; \
		srl %t0, shir, %t4; \
		srl %t1, shir, %t5; \
		sll %t0, shil, %t6; \
		or %t4, %prev, %t0; \
		sll %t1, shil, %prev; \
		or %t5, %t6, %t1; \
		srl %t2, shir, %t4; \
		srl %t3, shir, %t5; \
		sll %t2, shil, %t6; \
		or %t4, %prev, %t2; \
		sll %t3, shil, %prev; \
		or %t5, %t6, %t3; \
		std %t0, [%dst + (offset) + (offset2) + 0x00]; \
		std %t2, [%dst + (offset) + (offset2) + 0x08];

		.text
		.align 4

		0:
		retl
		nop ! Only bcopy returns here and it retuns void...

		FUNC(memmove)
		EXPORT_SYMBOL(memmove)
		cmp %o0, %o1

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