diosmios/memory_asm.S
crediar@rypp.net 7f75f5eb1e Cheating:
*Due space limitations only the debug version of kenobigc is supported, this means there is a bit less space for cheats.


git-svn-id: svn://localhost/Users/andi/Downloads/code/trunk@2 be6c1b03-d731-4111-a574-e37d80d43941
2012-06-23 18:08:56 +00:00

71 lines
1.1 KiB
ArmAsm

#define CPSR_IRQDIS 0x80
#define CPSR_FIQDIS 0x40
.arm
.globl _dc_inval_entries
.globl _dc_flush_entries
.globl _dc_flush
.globl _dc_inval
.globl _ic_inval
.globl _drain_write_buffer
.globl _tlb_inval
.globl irq_kill
.globl irq_restore
.text
irq_kill:
mrs r1, cpsr
and r0, r1, #(CPSR_IRQDIS|CPSR_FIQDIS)
orr r1, r1, #(CPSR_IRQDIS|CPSR_FIQDIS)
msr cpsr_c, r1
bx lr
irq_restore:
mrs r1, cpsr
bic r1, r1, #(CPSR_IRQDIS|CPSR_FIQDIS)
orr r1, r1, r0
msr cpsr_c, r1
bx lr
_dc_inval_entries:
mcr p15, 0, r0, c7, c6, 1
add r0, #0x20
subs r1, #1
bne _dc_inval_entries
bx lr
_dc_flush_entries:
mcr p15, 0, r0, c7, c10, 1
add r0, #0x20
subs r1, #1
bne _dc_flush_entries
bx lr
_dc_flush:
mrc p15, 0, pc, c7, c10, 3
bne _dc_flush
bx lr
_dc_inval:
mov r0, #0
mcr p15, 0, r0, c7, c6, 0
bx lr
_ic_inval:
mov r0, #0
mcr p15, 0, r0, c7, c5, 0
bx lr
_drain_write_buffer:
mov r0, #0
mcr p15, 0, r0, c7, c10, 4
bx lr
_tlb_inval:
mov r0, #0
mcr p15, 0, r0, c8, c7
bx lr