Retro68/gcc/newlib/libc/machine/mn10300/memset.S
2012-03-27 01:51:53 +02:00

96 lines
1.8 KiB
ArmAsm

.file "memset.S"
.section .text
.global _memset
.type _memset,@function
_memset:
movm [d2,d3,a2,a3], (sp)
.Lend_of_prologue:
mov d0, d3
mov d1, d2
mov (28, sp),a1
mov d3, a0
#ifndef __OPTIMIZE_SIZE__
cmp 3, a1
bls .L41
btst 3, d3
bne .L41
extbu d2
mov d2, d1
asl 8, d1
or d2, d1
mov d1, d0
asl 16, d0
or d0, d1
cmp 15, a1
bls .L36
setlb
mov d1, (a0)
inc4 a0
mov d1, (a0)
inc4 a0
mov d1, (a0)
inc4 a0
mov d1, (a0)
inc4 a0
add -16, a1
cmp 15, a1
lhi
.L36:
cmp 3, a1
bls .L41
setlb
mov d1, (a0)
inc4 a0
add -4, a1
cmp 3, a1
lhi
.L41:
#endif
cmp 0, a1
beq .Lepilogue
setlb
movbu d2, (a0)
inc a0
sub 1, a1
lne
.Lepilogue:
mov d3,a0
ret [d2,d3,a2,a3], 16
.Lend_of_memset:
.size _memset, .Lend_of_memset - _memset
.section .debug_frame,"",@progbits
.Lstart_of_debug_frame:
# Common Information Entry (CIE)
.4byte .Lend_of_CIE - .Lstart_of_CIE # CIE Length
.Lstart_of_CIE:
.4byte 0xffffffff # CIE Identifier Tag
.byte 0x1 # CIE Version
.ascii "\0" # CIE Augmentation
.uleb128 0x1 # CIE Code Alignment Factor
.sleb128 -4 # CIE Data Alignment Factor
.byte 0x32 # CIE RA Column
.byte 0xc # DW_CFA_def_cfa
.uleb128 0x9
.uleb128 0x0
.byte 0xb2 # DW_CFA_offset, column 0x32
.uleb128 0x0
.align 2
.Lend_of_CIE:
# Frame Description Entry (FDE)
.4byte .Lend_of_FDE - .Lstart_of_FDE # FDE Length
.Lstart_of_FDE:
.4byte .Lstart_of_debug_frame # FDE CIE offset
.4byte _memset # FDE initial location
.4byte .Lend_of_memset - _memset # FDE address range
.byte 0x4 # DW_CFA_advance_loc4
.4byte .Lend_of_prologue - _memset
.byte 0xe # DW_CFA_def_cfa_offset
.uleb128 0x4
.byte 0x87 # DW_CFA_offset, column 0x7
.uleb128 0x1
.align 2
.Lend_of_FDE: