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linux-sg2042/arch/sh/lib/div64.S

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
sh: Correct __xdiv64_32/div64_32 return value size. These should be returning a uint32_t, whereas they were erroneously returning a u64 before. As the register sizes are 32-bits, this doesn't really make a lot of sense. Reported-by: Katsuya MATSUBARA <matsu@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-06 09:58:04 +08:00
* unsigned long __xdiv64_32(unsigned long long n, unsigned long d);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*/
#include <linux/linkage.h>
.text
ENTRY(__xdiv64_32)
sh: Correct __xdiv64_32/div64_32 return value size. These should be returning a uint32_t, whereas they were erroneously returning a u64 before. As the register sizes are 32-bits, this doesn't really make a lot of sense. Reported-by: Katsuya MATSUBARA <matsu@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-06 09:58:04 +08:00
#ifdef CONFIG_CPU_LITTLE_ENDIAN
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mov r4, r0
mov r5, r1
#else
mov r4, r1
mov r5, r0
#endif
cmp/hs r6, r1
bf.s 1f
mov #0, r2
mov r1, r2
mov #0, r3
div0u
.rept 32
rotcl r2
div1 r6, r3
.endr
rotcl r2
mul.l r6, r2
sts macl, r3
sub r3, r1
1:
div0u
.rept 32
rotcl r0
div1 r6, r1
.endr
sh: Correct __xdiv64_32/div64_32 return value size. These should be returning a uint32_t, whereas they were erroneously returning a u64 before. As the register sizes are 32-bits, this doesn't really make a lot of sense. Reported-by: Katsuya MATSUBARA <matsu@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-06 09:58:04 +08:00
#ifdef CONFIG_CPU_LITTLE_ENDIAN
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
mov r2, r1
rts
rotcl r0
#else
rotcl r0
mov r0, r1
rts
mov r2, r0
#endif