annotate src/vdpdefs.inc @ 7:108ecc582a11
defined all the I/O register addresses in io.h
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John Tsiombikas <nuclear@member.fsf.org> |
| date |
Wed, 21 Jun 2017 06:49:50 +0300 |
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1 | vi:filetype=asm68k:
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2 .equ VDP_PORT_DATA, 0xc00000
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3 .equ VDP_PORT_CTL, 0xc00004
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4
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5 .equ VDP_REG_MODE1, 0
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6 .equ VDP_REG_MODE2, 1
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7
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8 .equ VDP_WRITE_VRAM, 0x40000000
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9 .equ VDP_WRITE_CRAM, 0xc0000000
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10 .equ VDP_WRITE_VSRAM, 0x40000010
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11 .equ VDP_READ_VRAM, 0
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12 .equ VDP_READ_CRAM, 0x00000020
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13 .equ VDP_READ_VSRAM, 0x00000010
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