megadrive_test2

annotate src/vdpdefs.inc @ 4:72ab63f262bf

tiles
author John Tsiombikas <nuclear@member.fsf.org>
date Mon, 19 Jun 2017 08:02:51 +0300
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rev   line source
nuclear@1 1 | vi:filetype=asm68k:
nuclear@1 2 .equ VDP_PORT_DATA, 0xc00000
nuclear@1 3 .equ VDP_PORT_CTL, 0xc00004
nuclear@1 4
nuclear@1 5 .equ VDP_REG_MODE1, 0
nuclear@1 6 .equ VDP_REG_MODE2, 1
nuclear@1 7
nuclear@1 8 .equ VDP_WRITE_VRAM, 0x40000000
nuclear@1 9 .equ VDP_WRITE_CRAM, 0xc0000000
nuclear@1 10 .equ VDP_WRITE_VSRAM, 0x40000010
nuclear@1 11 .equ VDP_READ_VRAM, 0
nuclear@1 12 .equ VDP_READ_CRAM, 0x00000020
nuclear@1 13 .equ VDP_READ_VSRAM, 0x00000010