loadstore.s

<B>Digital的Unix操作系统VAX 4.2源码</B>

/*	@(#)loadstore.s	4.1	(ULTRIX)	7/3/90				      */
#include <mips/regdef.h>
#include <mips/asm.h>

LEAF(unaligned_load_word)
XLEAF(unaligned_load_word_)
	ulw	v0, 0(a0)
	j	ra
END(unaligned_load_word)

LEAF(unaligned_load_half)
XLEAF(unaligned_load_half_)
	ulh	v0, 0(a0)
	j	ra
END(unaligned_load_half)

LEAF(unaligned_load_uhalf)
XLEAF(unaligned_load_uhalf_)
	ulhu	v0, 0(a0)
	j	ra
END(unaligned_load_uhalf)

LEAF(unaligned_load_float)
XLEAF(unaligned_load_float_)
	ulw	v0, 0(a0)
	mtc1	v0, $f0
	j	ra
END(unaligned_load_float)

LEAF(unaligned_load_double)
XLEAF(unaligned_load_double_)
	ulw	v0, 0(a0)
	ulw	v1, 4(a0)
	mtc1	v0, $f0
	mtc1	v1, $f1
	j	ra
END(unaligned_load_double)

LEAF(unaligned_store_word)
XLEAF(unaligned_store_word_)
	usw	a1, 0(a0)
	j	ra
END(unaligned_store_word)

LEAF(unaligned_store_half)
XLEAF(unaligned_store_half_)
	ush	a1, 0(a0)
	j	ra
END(unaligned_store_half)

LEAF(unaligned_store_float)
XLEAF(unaligned_store_float_)
	usw	a1, 0(a0)
	j	ra
END(unaligned_store_float)

LEAF(unaligned_store_double)
XLEAF(unaligned_store_double_)
	usw	a2, 0(a0)
	usw	a3, 4(a0)
	j	ra
END(unaligned_store_double)