51 lines
862 B
C
51 lines
862 B
C
#ifndef C64_REU_H
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#define C64_REU_H
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#include "types.h"
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#define REU_STAT_IRQ 0x80
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#define REU_STAT_EOB 0x40
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#define REU_STAT_FAULT 0x20
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#define REU_STAT_SIZE 0x10
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#define REU_STAT_VERSION 0x0f
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#define REU_CTRL_FIXL 0x80
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#define REU_CTRL_FIXR 0x40
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#define REU_CTRL_INCL 0x00
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#define REU_CTRL_INCR 0x00
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#define REU_IRQ_ENABLE 0x80
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#define REU_IRQ_EOB 0x40
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#define REU_IRQ_FAULT 0x20
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#define REU_CMD_EXEC 0x80
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#define REU_CMD_AUTO 0x20
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#define REU_CMD_FF00 0x10
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#define REU_CMD_STORE 0x00
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#define REU_CMD_LOAD 0x01
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#define REU_CMD_SWAP 0x02
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#define REU_CMD_VERIFY 0x03
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struct REU
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{
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volatile byte status;
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volatile byte cmd;
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volatile word laddr;
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volatile word raddr;
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volatile byte rbank;
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volatile word length;
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volatile byte irqmask;
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volatile byte ctrl;
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};
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#define reu (*((struct REU *)0xdf00))
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#pragma compile("reu.c")
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#endif
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