Retro68/gcc/newlib/libc/machine/mn10300/memchr.S
Wolfgang Thaller d464252791 re-add newlib
2017-04-11 23:13:36 +02:00

109 lines
1.8 KiB
ArmAsm

.file "memchr.S"
.section .text
.global _memchr
.type _memchr,@function
_memchr:
movm [d2,d3,a2,a3],(sp)
.Lend_of_prologue:
mov d0,a0
mov d1,d2
mov (28,sp),a1
#ifndef __OPTIMIZE_SIZE__
cmp 3,a1
bls .L44
mov a0,d3
btst 3,d3
bne .L44
mov a0,a2
mov 0,a3
clr d1
setlb
mov a3,d0
asl 8,d0
mov d2,a3
add d0,a3
inc d1
cmp 3,d1
lls
cmp 3,a1
bls .L48
.L33:
mov (a2),d0
mov a3,d3
xor d3,d0
mov d0,d1
not d1
add -16843009,d0
and d1,d0
btst -2139062144,d0
beq .L34
mov a2,a0
clr d1
setlb
movbu (a0),d0
cmp d2,d0
beq .Lepilogue
inc a0
inc d1
cmp 3,d1
lls
.L34:
add -4,a1
inc4 a2
cmp 3,a1
bhi .L33
.L48:
mov a2,a0
.L44:
#endif
cmp 0,a1
beq .L50
setlb
movbu (a0),d0
cmp d2,d0
beq .Lepilogue
inc a0
sub 1,a1
lne
.L50:
mov 0,a0
.Lepilogue:
ret [d2,d3,a2,a3],16
.Lend_of_memchr:
.size _memchr, .Lend_of_memchr - _memchr
.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 _memchr # FDE initial location
.4byte .Lend_of_memchr - _memchr # FDE address range
.byte 0x4 # DW_CFA_advance_loc4
.4byte .Lend_of_prologue - _memchr
.byte 0xe # DW_CFA_def_cfa_offset
.uleb128 0x4
.byte 0x87 # DW_CFA_offset, column 0x7
.uleb128 0x1
.align 2
.Lend_of_FDE: