nuclear@1: #include "hwregs.h"
nuclear@1: #include "intr.h"
nuclear@1: #include "copper.h"
nuclear@1: 
nuclear@1: void wait_vpos(int x);
nuclear@1: void wait_vblank(void);
nuclear@1: 
nuclear@1: #define BPLSZ  (320 / 8 * 256)
nuclear@1: static unsigned char fb0[BPLSZ];
nuclear@1: 
nuclear@1: int main(void)
nuclear@1: {
nuclear@1: 	uint32_t fb0_addr = (uint32_t)fb0;
nuclear@1: 
nuclear@1: 	REG_INTENA = SETBITS(INTEN_VERTB | INTEN_MASTER);
nuclear@1: 
nuclear@1: 	REG_DMACON = CLRBITS(DMA_ALL);
nuclear@1: 	REG_BPLCON0 = BPLCON0_COUNT(0) | BPLCON0_COLOR;
nuclear@1: 	REG_BPLCON1 = 0;
nuclear@1: 	REG_DIWSTART = 0x2981;
nuclear@1: 	REG_DIWSTOP = 0x29c1;
nuclear@1: 	REG_DDFSTART = 0x38;
nuclear@1: 	REG_DDFSTOP = 0xd0;
nuclear@1: 
nuclear@1: 	REG_COLOR0 = 0x00f;
nuclear@1: 	REG_COLOR1 = 0xff0;
nuclear@1: 
nuclear@1: 	init_copper(0, 0);
nuclear@1: 
nuclear@1: 	wait_vblank();
nuclear@1: 	add_copper(COPPER_MOVE(REGN_BPL1PTH, fb0_addr >> 16));
nuclear@1: 	add_copper(COPPER_MOVE(REGN_BPL1PTL, fb0_addr));
nuclear@1: 
nuclear@1: 	add_copper(COPPER_VWAIT(64));
nuclear@1: 	add_copper(COPPER_MOVE(REGN_COLOR0, 0xf00));
nuclear@1: 	add_copper(COPPER_VWAIT(70));
nuclear@1: 	add_copper(COPPER_MOVE(REGN_COLOR0, 0x00f));
nuclear@1: 
nuclear@1: 	add_copper(COPPER_END);
nuclear@1: 
nuclear@1: 	fb0[128 * 320 / 8] = 8;
nuclear@1: 
nuclear@1: 	REG_DMACON = SETBITS(DMA_COPPER | DMA_MASTER);
nuclear@1: 	enable_intr();
nuclear@1: 
nuclear@1: 	for(;;);
nuclear@1: 	return 0;
nuclear@1: }
nuclear@1: 
nuclear@1: void wait_vpos(int x)
nuclear@1: {
nuclear@1: 	x <<= 8;
nuclear@1: 	while((REG32_VPOSR & 0x1ff00) < x);
nuclear@1: }
nuclear@1: 
nuclear@1: void wait_vblank(void)
nuclear@1: {
nuclear@1: 	wait_vpos(300);
nuclear@1: }