mirror of
https://github.com/st3fan/ewm.git
synced 2024-06-06 14:29:35 +00:00
56 lines
2.0 KiB
C
56 lines
2.0 KiB
C
// The MIT License (MIT)
|
|
//
|
|
// Copyright (c) 2015 Stefan Arentz - http://github.com/st3fan/ewm
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in all
|
|
// copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
// SOFTWARE.
|
|
|
|
#ifndef PIA_H
|
|
#define PIA_H
|
|
|
|
#include <stdint.h>
|
|
#include "cpu.h"
|
|
|
|
#define EWM_PIA6820_DDRA 0
|
|
#define EWM_PIA6820_CTLA 1
|
|
#define EWM_PIA6820_DDRB 2
|
|
#define EWM_PIA6820_CTLB 3
|
|
|
|
#define EWM_A1_PIA6820_ADDR 0xd010
|
|
#define EWM_A1_PIA6820_LENGTH 0x0100
|
|
|
|
#define EWM_A1_PIA6820_KBD (EWM_A1_PIA6820_ADDR + EWM_PIA6820_DDRA)
|
|
#define EWM_A1_PIA6820_KBDCR (EWM_A1_PIA6820_ADDR + EWM_PIA6820_CTLA)
|
|
#define EWM_A1_PIA6820_DSP (EWM_A1_PIA6820_ADDR + EWM_PIA6820_DDRB)
|
|
#define EWM_A1_PIA6820_DSPCR (EWM_A1_PIA6820_ADDR + EWM_PIA6820_CTLB)
|
|
|
|
struct pia_t {
|
|
uint8_t a;
|
|
uint8_t cra;
|
|
uint8_t b;
|
|
uint8_t crb;
|
|
uint8_t trace;
|
|
};
|
|
|
|
void pia_init(struct pia_t *pia);
|
|
void pia_trace(struct pia_t *pia, uint8_t enable);
|
|
uint8_t pia_read(struct cpu_t *cpu, struct mem_t *mem, uint16_t addr);
|
|
void pia_write(struct cpu_t *cpu, struct mem_t *mem, uint16_t addr, uint8_t b);
|
|
|
|
#endif
|