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o add mmio to trigger cart irq

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o add snes irq handlers
o add inline printf asm
This commit is contained in:
David Voswinkel 2009-05-20 00:16:30 +02:00
parent aa649c89ee
commit 5dd4904f9c
7 changed files with 199 additions and 299 deletions
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26
snes/irqtest/debug.asm
View File

@ -1,22 +1,34 @@
.define debug_pointer $0080
.define debug_pointer $080
.MACRO printf
ldy.w #\1 ; load add of the string
.MACRO printdb
ldy.w #\1 ; load addr of the marco arg string
sty.w debug_pointer ; store address in defined mem area
ldy #0 ; zero y
ldy #0 ; zero y index
jsr do_printf
.ENDM
.MACRO prints
ldy.w #++ ; load addr of the marco arg string
sty.w debug_pointer ; store address in defined mem area
ldy #0 ; zero y index
jsr do_printf
jmp +++
++:
.db \1,10,0
+++:
.ENDM
.BANK 0
.SECTION "debug" SEMIFREE
do_printf:
lda (debug_pointer),y ; get address of string
lda (debug_pointer),y ; get address of string via indirect mem area
sta $3000 ; write to MMIO debug reg
iny
cmp #0 ; len 5
iny ; inc index
cmp #0 ; look for null byte
bne do_printf
rts
.ENDs

10
snes/irqtest/header.inc
View File

@ -34,11 +34,11 @@
.ENDSNES
.SNESNATIVEVECTOR ; Define Native Mode interrupt vector table
COP EmptyHandler
BRK EmptyHandler
ABORT EmptyHandler
NMI EmptyHandler
IRQ EmptyHandler
COP COPHandler
BRK BRKHandler
ABORT ABRTHandler
NMI NMIHandler
IRQ IRQHandler
.ENDNATIVEVECTOR
.SNESEMUVECTOR ; Define Emulation Mode interrupt vector table

42
snes/irqtest/irqtest.asm
View File

@ -46,21 +46,15 @@ Start_do:
; Setup Video modes and other stuff, then turn on the screen
jsr SetupVideo
lda #65
sta $3000
lda #66
sta $3000
lda #67
sta $3000
sei
cop
prints "Init done"
stz $3001
printf str_COP
cop
lda #65
sta $3000
lda #66
sta $3000
lda #67
sta $3000
lda #$81
sta $4200
Infinity:
jmp Infinity ; bwa hahahahaha
@ -98,6 +92,28 @@ SetupVideo:
plp
rts
;.ENDS
;.SECTION "IRQHandlers"
COPHandler:
prints "COPHandler"
rti
BRKHandler:
prints "BRKHandler"
rti
ABRTHandler:
prints "ABRTHandler"
rti
NMIHandler:
;prints "NMIHandler"
rti
IRQHandler:
prints "IRQHandler"
rti
str_COP:
.db "COP",10,0

387
snesram.tmproj
View File

@ -3,7 +3,7 @@
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@ -91,21 +77,79 @@
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@ -119,47 +163,19 @@
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@ -376,94 +310,21 @@
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6
tools/bsnes/chip/cmmio/cmmio.cpp
View File

@ -35,6 +35,12 @@ void CMMIO::mmio_write(unsigned addr, uint8 data) {
fprintf(stderr,"%c",data);
fflush(stderr);
}
if (addr == 0x3001){
fprintf(stderr,"Trigger IRQ\n");
fflush(stderr);
cpu.triggerIRQ();
}
}
CMMIO::CMMIO() {

4
tools/bsnes/cpu/scpu/scpu.cpp
View File

@ -23,6 +23,10 @@ void sCPU::power() {
reset();
}
void sCPU::triggerIRQ() {
status.irq_pending = true;
}
void sCPU::reset() {
CPU::reset();

1
tools/bsnes/cpu/scpu/scpu.hpp
View File

@ -88,6 +88,7 @@ public:
void power();
void reset();
void triggerIRQ();
sCPU();
~sCPU();