shithub: sms

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Print vdp registers

--- a/dat.h

+++ b/dat.h

@@ -2,7 +2,7 @@

 extern uint32_t irq;

-extern uint8_t reg[32];

+extern uint8_t reg[16];

 extern uint8_t dma;

 extern uint8_t z80bus, z80irq;

--- a/mem.c

+++ b/mem.c

@@ -11,7 +11,12 @@

 uint16_t cram[64], vsram[40];

 uint32_t cramc[64];

 uint8_t zram[8192];

-uint8_t reg[32];

+uint8_t reg[16] = {

+    0x36, 0x80, 0xff, 0xff,

+    0xff, 0xff, 0xfb, 0x00,

+    0x00, 0x00, 0xff, 0x00,

+    0x00, 0x00, 0x00, 0x00,

+};

 uint8_t ctl[15];

 uint8_t dma;

--- a/sms.c

+++ b/sms.c

@@ -105,12 +105,13 @@

 		t = z80step();

 		printf("cycles: %d\n", t);

 		vdpclock -= t * Z80DIV;

-		total += t * Z80DIV;

+		total += t;

 		while(vdpclock < 0){

 			vdpstep();

 			vdpclock += 8;

 		}

+		printf("    vdp registers: %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x\n", reg[0], reg[1], reg[2], reg[3], reg[4], reg[5], reg[6], reg[7], reg[8], reg[9], reg[10], reg[11], reg[12], reg[13], reg[14], reg[15]);

 		if (total > 702240){

 			flush();

@@ -123,6 +124,7 @@

 	video_cb(pic, 320, 224, 320*4);

 	// audioout();

 	doflush = 0;

+	total = 0;

 }

 void

--- a/vdp.c

+++ b/vdp.c

@@ -293,6 +293,7 @@

 	set = 0;

 	col = 0;

 	for(p = spr; p < lsp; p++){

+		printf("p->x: %d, p->y: %d\n", p->x, p->y);

 		dx = vdpx - p->x;

 		if(dx >= p->w)

 			continue;

@@ -341,6 +342,7 @@

 	vdpcode = (v >> 6) & 0x03;

 	vdpaddr = (vdpaddr & 0x00ff) | ((v & 0x3f) << 8);

+

 	printf("vdp code and address %x %x\n", vdpcode, vdpaddr);

 	first = 1;

--- a/z80.c

+++ b/z80.c

@@ -414,7 +414,7 @@

 	uint16_t a, n;

 	op = fetch8();

-	// printf("ed %.2x\n", op);

+	printf("ed %.2x\n", op);

 	switch(op){

 	case 0xa0: case 0xa1: case 0xa8: case 0xa9:

 	case 0xb0: case 0xb1: case 0xb8: case 0xb9:

@@ -682,9 +682,9 @@

 		}

 	}

 	curpc = pc;

-	// printf("%x AF %.2x%.2x BC %.2x%.2x DE %.2x%.2x HL %.2x%.2x IX %.4x IY %.4x\n", curpc, s[rA], s[rF], s[rB], s[rC], s[rD], s[rE], s[rH], s[rL], ix[0], ix[1]);

+	printf("%x AF %.2x%.2x BC %.2x%.2x DE %.2x%.2x HL %.2x%.2x IX %.4x IY %.4x\n", curpc, s[rA], s[rF], s[rB], s[rC], s[rD], s[rE], s[rH], s[rL], ix[0], ix[1]);

 	op = fetch8();

-	// printf("op: %x\n", op);

+	printf("op: %x\n", op);

 	switch(op >> 6){

 	case 1: return move(op >> 3 & 7, op & 7);

 	case 2: return alu(op >> 3 & 7, op & 7);

-- 

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