nuclear@0: #include "vdp.h"
nuclear@0: 
nuclear@0: void vdp_init(void)
nuclear@0: {
nuclear@5: 	int i;
nuclear@5: 
nuclear@0: 	vdp_setreg(VDP_REG_MODE1, VDP_MODE1_BASE);
nuclear@0: 	vdp_setreg(VDP_REG_MODE2, VDP_MODE2_BASE | VDP_MODE2_DISP);
nuclear@0: 
nuclear@5: 	vdp_set_nametab_addr(VDP_PLANE_A, 0xc000);
nuclear@5: 	vdp_set_nametab_addr(VDP_PLANE_B, 0xe000);
nuclear@5: 	vdp_disable_layer(VDP_PLANE_WIN);
nuclear@5: 	vdp_set_scroll_table(0xd000);
nuclear@5: 	vdp_set_sprite_table(0xd400);
nuclear@5: 
nuclear@5: 	vdp_setreg(VDP_REG_MODE3, VDP_MODE3_BASE);
nuclear@5: 	vdp_setreg(VDP_REG_MODE4, VDP_MODE4_BASE | VDP_MODE4_H40CELL);
nuclear@5: 	vdp_setreg(VDP_REG_SCROLL_SIZE, VDP_SCROLL_H64 | VDP_SCROLL_V32);
nuclear@5: 
nuclear@0: 	vdp_set_autoinc(2);
nuclear@5: 	vdp_set_bgcolor(0, 0);
nuclear@5: 
nuclear@5: 	vdp_setreg(VDP_REG_HINTR, 0);
nuclear@5: 	vdp_setreg(VDP_REG_WIN_XPOS, 0);
nuclear@5: 	vdp_setreg(VDP_REG_WIN_YPOS, 0);
nuclear@5: 
nuclear@5: 	/* clear vmem at the planes A/B name tables, scroll table, and sprite table */
nuclear@5: 	vdp_setup_access(0xd000, VDP_MEM_WRITE, VDP_MEM_VRAM);
nuclear@5: 	for(i=0xd000; i<65536; i++) {
nuclear@5: 		VDP_PORT_DATA = 0;
nuclear@5: 	}
nuclear@0: }