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172 lines
2.9 KiB
ArmAsm
172 lines
2.9 KiB
ArmAsm
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: ntoskrnl/ex/powerpc/ioport.s
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* PURPOSE: FASTCALL Interlocked Functions
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* PROGRAMMERS: Alex Ionescu (alex@relsoft.net)
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*/
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/* INCLUDES ******************************************************************/
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#include <ndk/asm.h>
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/* GLOBALS *******************************************************************/
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.globl READ_REGISTER_UCHAR
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.globl READ_REGISTER_USHORT
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.globl READ_REGISTER_ULONG
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.globl READ_REGISTER_BUFFER_UCHAR
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.globl READ_REGISTER_BUFFER_USHORT
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.globl READ_REGISTER_BUFFER_ULONG
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.globl WRITE_REGISTER_UCHAR
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.globl WRITE_REGISTER_USHORT
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.globl WRITE_REGISTER_ULONG
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.globl WRITE_REGISTER_BUFFER_UCHAR
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.globl WRITE_REGISTER_BUFFER_USHORT
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.globl WRITE_REGISTER_BUFFER_ULONG
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/* FUNCTIONS *****************************************************************/
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READ_REGISTER_UCHAR:
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/* Return the requested memory location */
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sync
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eieio
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lbz 3,0(3)
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blr
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READ_REGISTER_USHORT:
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/* Return the requested memory location */
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sync
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eieio
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lhz 3,0(3)
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blr
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READ_REGISTER_ULONG:
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/* Return the requested memory location */
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sync
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eieio
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lwz 3,0(3)
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blr
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READ_REGISTER_BUFFER_UCHAR:
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1:
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cmpwi 0,5,0
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beq 2f
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lbz 0,0(4)
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stb 0,0(3)
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addi 3,3,1
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addi 4,4,1
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subi 5,5,1
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b 1b
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2:
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eieio
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sync
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blr
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READ_REGISTER_BUFFER_USHORT:
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1:
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cmpwi 0,5,0
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beq 2f
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lhz 0,0(4)
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sth 0,0(3)
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addi 3,3,2
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addi 4,4,2
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subi 5,5,2
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b 1b
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2:
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eieio
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sync
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blr
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READ_REGISTER_BUFFER_ULONG:
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1:
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cmpwi 0,5,0
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beq 2f
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lwz 0,0(4)
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stw 0,0(3)
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addi 3,3,4
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addi 4,4,4
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subi 5,5,4
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b 1b
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2:
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eieio
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sync
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blr
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WRITE_REGISTER_UCHAR:
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stb 4,0(3)
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eieio
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sync
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blr
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WRITE_REGISTER_USHORT:
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sth 4,0(3)
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eieio
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sync
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blr
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WRITE_REGISTER_ULONG:
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stw 4,0(3)
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eieio
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sync
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blr
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WRITE_REGISTER_BUFFER_UCHAR:
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sync
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eieio
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1:
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cmpwi 0,5,0
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beq 2f
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lbz 0,0(4)
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stb 0,0(3)
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addi 3,3,1
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addi 4,4,1
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subi 5,5,1
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b 1b
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2:
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blr
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WRITE_REGISTER_BUFFER_USHORT:
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sync
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eieio
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1:
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cmpwi 0,5,0
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beq 2f
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lhz 0,0(4)
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sth 0,0(3)
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addi 3,3,2
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addi 4,4,2
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subi 5,5,2
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b 1b
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2:
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blr
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WRITE_REGISTER_BUFFER_ULONG:
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sync
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eieio
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1:
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cmpwi 0,5,0
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beq 2f
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lwz 0,0(4)
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stw 0,0(3)
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addi 3,3,4
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addi 4,4,4
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subi 5,5,4
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b 1b
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2:
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blr
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/* EOF */
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