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#ifndef _FINALROM
#include "asm.h"
#include "sgidefs.h"
#include "regdef.h"
#include "sgidefs.h"
#include "PR/R4300.h"
#define EXC(code) (EXC_##code >> CAUSE_EXCSHIFT)
.text
LEAF(__isExpJP); .set noreorder
j __isExp
nop
sw k0, -0x10(sp)
la k0, __isExp
jr k0
nop
.set reorder
END(__isExpJP)
LEAF(__isExp); .set noreorder
sw k0, -0x10(sp)
sw k1, -8(sp)
mfc0 k0, C0_CAUSE
nop
andi k0, k0, CAUSE_EXCMASK
bnez k0, non_stop
nop
mfc0 k0, C0_CAUSE
nop
andi k0, k0, CAUSE_IP7
beqz k0, throw_os_exception
nop
j go_monitor
nop
non_stop:
sra k0, k0, CAUSE_EXCSHIFT
li k1, EXC(BREAK)
bne k0, k1, non_bp
nop
j go_monitor
nop
non_bp:
li k1, EXC(RADE)
bne k0, k1, non_adrs_store_exp
nop
j go_monitor
nop
non_adrs_store_exp:
li k1, EXC(WADE)
bne k0, k1, non_adrs_load_exp
nop
j go_monitor
nop
non_adrs_load_exp:
li k1, EXC(IBE)
bne k0, k1, non_bus_code_exp
nop
j go_monitor
nop
non_bus_code_exp:
li k1, EXC(DBE)
bne k0, k1, non_bus_data_exp
nop
j go_monitor
nop
non_bus_data_exp:
li k1, EXC(MOD)
bne k0, k1, non_tlb_mod
nop
j go_monitor
nop
non_tlb_mod:
li k1, EXC(RMISS)
bne k0, k1, non_tlb_load
nop
j go_monitor
nop
non_tlb_load:
li k1, EXC(WMISS)
bne k0, k1, non_tlb_store
nop
j go_monitor
nop
non_tlb_store:
li k1, EXC(II)
bne k0, k1, non_resv
nop
j go_monitor
nop
non_resv:
lw k1, -8(sp)
throw_os_exception:
j ramOldVector
nop
go_monitor:
move k0, sp
addiu sp, sp, -0x200
sw k0, 0x78(sp)
lw k1, -8(k0)
sw k1, 0x70(sp)
lw k1, -0x10(k0)
sw k1, 0x6c(sp)
nop
w:
lui k0, (0xA4600010 >> 16)
lw k0, (0xA4600010 & 0xFFFF)(k0) /* PI_STATUS_REG */
nop
andi k0, k0, 3 /* (PI_STATUS_DMA_BUSY | PI_STATUS_IO_BUSY) */
bnez k0, w
nop
la k0, 0xBFF00050
jr k0
nop
.set reorder
END(__isExp)
LEAF(MonitorInitBreak); .set noreorder
nop
nop
INIT_BREAK_POSITION:
break 4
nop
nop
nop
jr ra
nop
.set reorder
END(MonitorInitBreak)
#endif
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