mirror of
https://github.com/reactos/reactos.git
synced 2024-11-11 01:04:11 +00:00
171 lines
2.9 KiB
ArmAsm
171 lines
2.9 KiB
ArmAsm
/*
|
|
* COPYRIGHT: See COPYING in the top level directory
|
|
* PROJECT: ReactOS kernel
|
|
* FILE: ntoskrnl/ex/i386/ioport.S
|
|
* PURPOSE: FASTCALL Interlocked Functions
|
|
* PROGRAMMERS: Alex Ionescu (alex@relsoft.net)
|
|
*/
|
|
|
|
/* INCLUDES ******************************************************************/
|
|
|
|
#include <ndk/asm.h>
|
|
|
|
/* GLOBALS *******************************************************************/
|
|
|
|
.globl READ_REGISTER_UCHAR
|
|
.globl READ_REGISTER_USHORT
|
|
.globl READ_REGISTER_ULONG
|
|
.globl READ_REGISTER_BUFFER_UCHAR
|
|
.globl READ_REGISTER_BUFFER_USHORT
|
|
.globl READ_REGISTER_BUFFER_ULONG
|
|
.globl WRITE_REGISTER_UCHAR
|
|
.globl WRITE_REGISTER_USHORT
|
|
.globl WRITE_REGISTER_ULONG
|
|
.globl WRITE_REGISTER_BUFFER_UCHAR
|
|
.globl WRITE_REGISTER_BUFFER_USHORT
|
|
.globl WRITE_REGISTER_BUFFER_ULONG
|
|
|
|
/* FUNCTIONS *****************************************************************/
|
|
|
|
READ_REGISTER_UCHAR:
|
|
/* Return the requested memory location */
|
|
sync
|
|
eieio
|
|
lbz 3,0(3)
|
|
blr
|
|
|
|
READ_REGISTER_USHORT:
|
|
/* Return the requested memory location */
|
|
sync
|
|
eieio
|
|
lhz 3,0(3)
|
|
blr
|
|
|
|
READ_REGISTER_ULONG:
|
|
/* Return the requested memory location */
|
|
sync
|
|
eieio
|
|
lwz 3,0(3)
|
|
blr
|
|
|
|
READ_REGISTER_BUFFER_UCHAR:
|
|
1:
|
|
cmpwi 0,5,0
|
|
beq 2f
|
|
|
|
lbz 0,0(4)
|
|
stb 0,0(3)
|
|
|
|
addi 3,3,1
|
|
addi 4,4,1
|
|
subi 5,5,1
|
|
b 1b
|
|
2:
|
|
eieio
|
|
sync
|
|
blr
|
|
|
|
READ_REGISTER_BUFFER_USHORT:
|
|
1:
|
|
cmpwi 0,5,0
|
|
beq 2f
|
|
|
|
lhz 0,0(4)
|
|
sth 0,0(3)
|
|
|
|
addi 3,3,2
|
|
addi 4,4,2
|
|
subi 5,5,2
|
|
b 1b
|
|
2:
|
|
eieio
|
|
sync
|
|
blr
|
|
|
|
READ_REGISTER_BUFFER_ULONG:
|
|
1:
|
|
cmpwi 0,5,0
|
|
beq 2f
|
|
|
|
lwz 0,0(4)
|
|
stw 0,0(3)
|
|
|
|
addi 3,3,4
|
|
addi 4,4,4
|
|
subi 5,5,4
|
|
b 1b
|
|
2:
|
|
eieio
|
|
sync
|
|
blr
|
|
|
|
WRITE_REGISTER_UCHAR:
|
|
stb 4,0(3)
|
|
eieio
|
|
sync
|
|
blr
|
|
|
|
WRITE_REGISTER_USHORT:
|
|
sth 4,0(3)
|
|
eieio
|
|
sync
|
|
blr
|
|
|
|
WRITE_REGISTER_ULONG:
|
|
stw 4,0(3)
|
|
eieio
|
|
sync
|
|
blr
|
|
|
|
WRITE_REGISTER_BUFFER_UCHAR:
|
|
sync
|
|
eieio
|
|
1:
|
|
cmpwi 0,5,0
|
|
beq 2f
|
|
|
|
lbz 0,0(4)
|
|
stb 0,0(3)
|
|
|
|
addi 3,3,1
|
|
addi 4,4,1
|
|
subi 5,5,1
|
|
b 1b
|
|
2:
|
|
blr
|
|
|
|
WRITE_REGISTER_BUFFER_USHORT:
|
|
sync
|
|
eieio
|
|
1:
|
|
cmpwi 0,5,0
|
|
beq 2f
|
|
|
|
lhz 0,0(4)
|
|
sth 0,0(3)
|
|
|
|
addi 3,3,2
|
|
addi 4,4,2
|
|
subi 5,5,2
|
|
b 1b
|
|
2:
|
|
blr
|
|
|
|
WRITE_REGISTER_BUFFER_ULONG:
|
|
sync
|
|
eieio
|
|
1:
|
|
cmpwi 0,5,0
|
|
beq 2f
|
|
|
|
lwz 0,0(4)
|
|
stw 0,0(3)
|
|
|
|
addi 3,3,4
|
|
addi 4,4,4
|
|
subi 5,5,4
|
|
b 1b
|
|
2:
|
|
blr
|
|
|
|
/* EOF */
|