48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
#pragma once
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#include <stdint.h>
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#include "common/buffers.h"
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extern volatile uint32_t z80_vect;
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extern volatile uint8_t z80_irq;
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extern volatile uint8_t z80_nmi;
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extern volatile uint8_t z80_res;
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extern uint8_t z80_rom[2*1024];
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#define z80_ram private_memory
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extern volatile uint8_t *pcpi_reg;
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#define clr_z80_stat { pcpi_reg[2] &= ~0x80; }
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#define set_z80_stat { pcpi_reg[2] |= 0x80; }
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#define rd_z80_stat (pcpi_reg[2] >> 7)
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#define clr_6502_stat { pcpi_reg[3] &= ~0x80; }
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#define set_6502_stat { pcpi_reg[3] |= 0x80; }
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#define rd_6502_stat (pcpi_reg[3] >> 7)
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typedef struct ctc_s {
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uint8_t control;
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uint8_t counter;
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uint8_t preload;
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} ctc_t;
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extern volatile ctc_t ctc[4];
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extern volatile uint8_t ctc_vector;
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typedef struct sio_s {
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uint8_t control[8];
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uint8_t status[2];
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uint8_t data;
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uint8_t datavalid;
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uint32_t baudrate;
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} sio_t;
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extern volatile sio_t sio[2];
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extern volatile uint8_t sio_vector;
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extern uint8_t auart_read(bool port);
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extern uint8_t zuart_peek(bool port);
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extern uint8_t auart_status(bool port);
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extern uint8_t auart_command(bool port, uint8_t value);
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extern uint8_t auart_control(bool port, uint8_t value);
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extern uint8_t zuart_write(bool port, uint8_t value);
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