URL
https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [bootloaders/] [orpmon/] [common/] [or32.S] - Rev 568
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.align 4
.global ___udivsi3
___udivsi3:
l.addi r1,r1,-4
l.sw 0(r1),r9
l.addi r11,r0,0
l.addi r8,r4,0
l.addi r5,r3,0
l.sfne r8,r11
l.bnf 4f
l.addi r7,r0,0
l.sfgtu r8,r5
l.bf 5f
l.sfeq r8,r5
l.bf 6f
l.sfltu r11,r8
l.bnf 2f
l.addi r13,r0,32
l.movhi r9,hi(0x80000000)
l.addi r6,r0,-1
1:
l.and r3,r5,r9
l.slli r4,r7,1
l.addi r15,r5,0
l.srli r3,r3,31
l.add r13,r13,r6
l.or r7,r4,r3
l.sfltu r7,r8
l.bf 1b
l.slli r5,r5,1
2:
l.srli r7,r7,1
l.addi r13,r13,1
l.addi r9,r0,0
l.sfltu r9,r13
l.bnf 4f
l.addi r5,r15,0
l.movhi r15,hi(0x80000000)
l.addi r17,r0,0
3:
l.and r3,r5,r15
l.slli r4,r7,1
l.srli r3,r3,31
l.or r7,r4,r3
l.sub r6,r7,r8
l.and r3,r6,r15
l.srli r3,r3,31
l.addi r4,r0,0
l.sfne r3,r4
l.bf 1f
l.slli r3,r11,1
l.addi r4,r0,1
1:
l.slli r5,r5,1
l.sfne r4,r17
l.bnf 2f
l.or r11,r3,r4
l.addi r7,r6,0
2:
l.addi r9,r9,1
l.sfltu r9,r13
l.bf 3b
l.nop 0
l.j 4f
l.nop 0
6:
l.j 4f
l.addi r11,r0,1
5:
l.addi r7,r5,0
4:
l.lwz r9,0(r1)
l.jr r9
l.addi r1,r1,4
.align 4
.global ___divsi3
___divsi3:
l.addi r1,r1,-8
l.sw 0(r1),r9
l.sw 4(r1),r10
l.addi r5,r3,0
l.addi r10,r0,0
l.sflts r5,r10
l.bnf 1f
l.addi r3,r0,0
l.addi r10,r0,1
l.sub r5,r0,r5
1:
l.sflts r4,r3
l.bnf 1f
l.nop 0
l.addi r10,r10,1
l.sub r4,r0,r4
1:
l.jal ___udivsi3
l.addi r3,r5,0
l.addi r3,r0,1
l.sfeq r10,r3
l.bnf 1f
l.nop 0
l.sub r11,r0,r11
1:
l.lwz r9,0(r1)
l.lwz r10,4(r1)
l.jr r9
l.addi r1,r1,8
.align 4
.global ___umodsi3
___umodsi3:
l.addi r1,r1,-4
l.sw 0(r1),r9
l.jal ___udivsi3
l.nop 0
l.addi r11,r7,0
l.lwz r9,0(r1)
l.jr r9
l.addi r1,r1,4
.align 4
.global ___modsi3
___modsi3:
l.addi r1,r1,-8
l.sw 0(r1),r9
l.sw 4(r1),r10
l.sflts r3,r0
l.bnf 1f
l.nop 0
l.addi r10,r0,1
l.sub r3,r0,r3
1:
l.sflts r4,r0
l.bnf 1f
l.nop 0
l.sub r4,r0,r4
1:
l.jal ___udivsi3
l.nop 0
l.addi r3,r0,1
l.sfeq r10,r3
l.bnf 1f
l.addi r11,r7,0
l.sub r11,r0,r11
1:
l.lwz r9,0(r1)
l.lwz r10,4(r1)
l.jr r9
l.addi r1,r1,8
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