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OpenCloudOS-Kernel/arch/m32r/lib/ashxdi3.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
/*
* linux/arch/m32r/lib/ashxdi3.S
*
* Copyright (C) 2001,2002 Hiroyuki Kondo, and Hirokazu Takata
*
*/
;
; input (r0,r1) src
; input r2 shift val
; r3 scratch
; output (r0,r1)
;
#ifdef CONFIG_ISA_DUAL_ISSUE
#ifndef __LITTLE_ENDIAN__
.text
.align 4
.globl __ashrdi3
__ashrdi3:
cmpz r2 || ldi r3, #32
jc r14 || cmpu r2, r3
bc 1f
; case 32 =< shift
mv r1, r0 || srai r0, #31
addi r2, #-32
sra r1, r2
jmp r14
.fillinsn
1: ; case shift <32
mv r3, r0 || srl r1, r2
sra r0, r2 || neg r2, r2
sll r3, r2
or r1, r3 || jmp r14
.align 4
.globl __ashldi3
.globl __lshldi3
__ashldi3:
__lshldi3:
cmpz r2 || ldi r3, #32
jc r14 || cmpu r2, r3
bc 1f
; case 32 =< shift
mv r0, r1 || addi r2, #-32
sll r0, r2 || ldi r1, #0
jmp r14
.fillinsn
1: ; case shift <32
mv r3, r1 || sll r0, r2
sll r1, r2 || neg r2, r2
srl r3, r2
or r0, r3 || jmp r14
.align 4
.globl __lshrdi3
__lshrdi3:
cmpz r2 || ldi r3, #32
jc r14 || cmpu r2, r3
bc 1f
; case 32 =< shift
mv r1, r0 || addi r2, #-32
ldi r0, #0 || srl r1, r2
jmp r14
.fillinsn
1: ; case shift <32
mv r3, r0 || srl r1, r2
srl r0, r2 || neg r2, r2
sll r3, r2
or r1, r3 || jmp r14
#else /* LITTLE_ENDIAN */
.text
.align 4
.globl __ashrdi3
__ashrdi3:
cmpz r2 || ldi r3, #32
jc r14 || cmpu r2, r3
bc 1f
; case 32 =< shift
mv r0, r1 || srai r1, #31
addi r2, #-32
sra r0, r2
jmp r14
.fillinsn
1: ; case shift <32
mv r3, r1 || srl r0, r2
sra r1, r2 || neg r2, r2
sll r3, r2
or r0, r3 || jmp r14
.align 4
.globl __ashldi3
.globl __lshldi3
__ashldi3:
__lshldi3:
cmpz r2 || ldi r3, #32
jc r14 || cmpu r2, r3
bc 1f
; case 32 =< shift
mv r1, r0 || addi r2, #-32
sll r1, r2 || ldi r0, #0
jmp r14
.fillinsn
1: ; case shift <32
mv r3, r0 || sll r1, r2
sll r0, r2 || neg r2, r2
srl r3, r2
or r1, r3 || jmp r14
.align 4
.globl __lshrdi3
__lshrdi3:
cmpz r2 || ldi r3, #32
jc r14 || cmpu r2, r3
bc 1f
; case 32 =< shift
mv r0, r1 || addi r2, #-32
ldi r1, #0 || srl r0, r2
jmp r14
.fillinsn
1: ; case shift <32
mv r3, r1 || srl r0, r2
srl r1, r2 || neg r2, r2
sll r3, r2
or r0, r3 || jmp r14
#endif
#else /* not CONFIG_ISA_DUAL_ISSUE */
#ifndef __LITTLE_ENDIAN__
.text
.align 4
.globl __ashrdi3
__ashrdi3:
beqz r2, 2f
cmpui r2, #32
bc 1f
; case 32 =< shift
mv r1, r0
srai r0, #31
addi r2, #-32
sra r1, r2
jmp r14
.fillinsn
1: ; case shift <32
mv r3, r0
srl r1, r2
sra r0, r2
neg r2, r2
sll r3, r2
or r1, r3
.fillinsn
2:
jmp r14
.align 4
.globl __ashldi3
.globl __lshldi3
__ashldi3:
__lshldi3:
beqz r2, 2f
cmpui r2, #32
bc 1f
; case 32 =< shift
mv r0, r1
addi r2, #-32
sll r0, r2
ldi r1, #0
jmp r14
.fillinsn
1: ; case shift <32
mv r3, r1
sll r0, r2
sll r1, r2
neg r2, r2
srl r3, r2
or r0, r3
.fillinsn
2:
jmp r14
.align 4
.globl __lshrdi3
__lshrdi3:
beqz r2, 2f
cmpui r2, #32
bc 1f
; case 32 =< shift
mv r1, r0
ldi r0, #0
addi r2, #-32
srl r1, r2
jmp r14
.fillinsn
1: ; case shift <32
mv r3, r0
srl r1, r2
srl r0, r2
neg r2, r2
sll r3, r2
or r1, r3
.fillinsn
2:
jmp r14
#else
.text
.align 4
.globl __ashrdi3
__ashrdi3:
beqz r2, 2f
cmpui r2, #32
bc 1f
; case 32 =< shift
mv r0, r1
srai r1, #31
addi r2, #-32
sra r0, r2
jmp r14
.fillinsn
1: ; case shift <32
mv r3, r1
srl r0, r2
sra r1, r2
neg r2, r2
sll r3, r2
or r0, r3
.fillinsn
2:
jmp r14
.align 4
.globl __ashldi3
.globl __lshldi3
__ashldi3:
__lshldi3:
beqz r2, 2f
cmpui r2, #32
bc 1f
; case 32 =< shift
mv r1, r0
addi r2, #-32
sll r1, r2
ldi r0, #0
jmp r14
.fillinsn
1: ; case shift <32
mv r3, r0
sll r1, r2
sll r0, r2
neg r2, r2
srl r3, r2
or r1, r3
.fillinsn
2:
jmp r14
.align 4
.globl __lshrdi3
__lshrdi3:
beqz r2, 2f
cmpui r2, #32
bc 1f
; case 32 =< shift
mv r0, r1
ldi r1, #0
addi r2, #-32
srl r0, r2
jmp r14
.fillinsn
1: ; case shift <32
mv r3, r1
srl r0, r2
srl r1, r2
neg r2, r2
sll r3, r2
or r0, r3
.fillinsn
2:
jmp r14
#endif
#endif /* not CONFIG_ISA_DUAL_ISSUE */
.end