68 lines
1.1 KiB
ArmAsm
68 lines
1.1 KiB
ArmAsm
|
.text
|
||
|
|
|
||
|
|
/*
|
||
|
|
* copyMemory.
|
||
|
|
*
|
||
|
|
* rdi - source length
|
||
|
|
* rsi - source data.
|
||
|
|
* rdx - target length.
|
||
|
|
* rcx - target data.
|
||
|
|
*/
|
||
|
|
.globl _D5tanya6memory2op10copyMemoryFNaNbNixAvAvZv
|
||
|
|
.type _D5tanya6memory2op10copyMemoryFNaNbNixAvAvZv, @function
|
||
|
|
|
||
|
|
_D5tanya6memory2op10copyMemoryFNaNbNixAvAvZv:
|
||
|
|
mov %rdi, %rdx
|
||
|
|
mov %rcx, %rdi
|
||
|
|
|
||
|
|
cmp $0x08, %rdx
|
||
|
|
jc aligned_1
|
||
|
|
test $0x07, %edi
|
||
|
|
jz aligned_8
|
||
|
|
|
||
|
|
naligned:
|
||
|
|
movsb
|
||
|
|
dec %rdx
|
||
|
|
test $0x07, %edi
|
||
|
|
jnz naligned
|
||
|
|
|
||
|
|
aligned_8:
|
||
|
|
mov %rdx, %rcx
|
||
|
|
shr $0x03, %rcx
|
||
|
|
rep movsq
|
||
|
|
and $0x07, %edx
|
||
|
|
jz end
|
||
|
|
|
||
|
|
aligned_1:
|
||
|
|
// Write the remaining bytes
|
||
|
|
mov %rdx, %rcx
|
||
|
|
rep movsb
|
||
|
|
|
||
|
|
end:
|
||
|
|
ret
|
||
|
|
|
||
|
|
/*
|
||
|
|
* moveMemory.
|
||
|
|
*
|
||
|
|
* rdi - source length
|
||
|
|
* rsi - source data.
|
||
|
|
* rdx - target length.
|
||
|
|
* rcx - target data.
|
||
|
|
*/
|
||
|
|
.globl _D5tanya6memory2op10moveMemoryFNaNbNixAvAvZv
|
||
|
|
.type _D5tanya6memory2op10moveMemoryFNaNbNixAvAvZv, @function
|
||
|
|
|
||
|
|
_D5tanya6memory2op10moveMemoryFNaNbNixAvAvZv:
|
||
|
|
mov %rdi, %rdx
|
||
|
|
|
||
|
|
lea -1(%rdx, %rsi), %rsi
|
||
|
|
lea -1(%rdx, %rcx), %rdi
|
||
|
|
mov %rdx, %rcx
|
||
|
|
|
||
|
|
std // Set the direction flag
|
||
|
|
|
||
|
|
rep movsb
|
||
|
|
|
||
|
|
cld // Clear the direction flag
|
||
|
|
ret
|