mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-24 23:32:06 +00:00
86 lines
1.6 KiB
ArmAsm
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:
|