per-line scrolling test

[mdlife] / src / vdpdefs.inc

| vi:filetype=asm68k:
        .equ VDP_PORT_DATA, 0xc00000
        .equ VDP_PORT_CTL, 0xc00004

        .equ VDP_REG_MODE1, 0
        .equ VDP_REG_MODE2, 1

        .equ VDP_WRITE_VRAM, 0x40000000
        .equ VDP_WRITE_CRAM, 0xc0000000
        .equ VDP_WRITE_VSRAM, 0x40000010
        .equ VDP_READ_VRAM, 0
        .equ VDP_READ_CRAM, 0x00000020
        .equ VDP_READ_VSRAM, 0x00000010