Retro68/gcc/newlib/libc/machine/mn10300/memcmp.S
Wolfgang Thaller ec13cc9ce7 fix newlib
2018-12-29 09:59:36 +01:00

86 lines
1.6 KiB
ArmAsm

.file "memcmp.S"
.section .text
.global _memcmp
.type _memcmp,@function
_memcmp:
movm [d2,d3,a2,a3],(sp)
.Lend_of_prologue:
mov d0,a0
mov d1,a1
mov (28,sp),a2
#ifndef __OPTIMIZE_SIZE__
cmp 3,a2
bls .L22
mov a1,d2
or d2,d0
btst 3,d0
bne .L22
setlb
mov (a0),d1
mov (a1),d0
cmp d0,d1
bne .L22
inc4 a0
inc4 a1
add -4,a2
cmp 3,a2
lhi
.L22:
#endif
cmp 0,a2
beq .L24
setlb
movbu (a0),d3
movbu (a1),d2
cmp d2,d3
beq .L23
mov d3,d0
sub d2,d0
jmp .Lepilogue
.L23:
inc a0
inc a1
sub 1,a2
lne
.L24:
clr d0
.Lepilogue:
ret [d2,d3,a2,a3],16
.Lend_of_func:
.size _memcmp, .Lend_of_func - _memcmp
.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 _memcmp # FDE initial location
.4byte .Lend_of_func - _memcmp # FDE address range
.byte 0x4 # DW_CFA_advance_loc4
.4byte .Lend_of_prologue - _memcmp
.byte 0xe # DW_CFA_def_cfa_offset
.uleb128 0x4
.byte 0x87 # DW_CFA_offset, column 0x7
.uleb128 0x1
.align 2
.Lend_of_FDE: