// Commander X16 Emulator

// Copyright (c) 2019 Michael Steil

// All rights reserved. License: 2-clause BSD

#ifndef _MEMORY_H_

#define _MEMORY_H_

#include <stdbool.h>

#include <stdint.h>

#include <stdio.h>

#include <SDL.h>

#ifdef __cplusplus

extern "C" {

#endif

#define BANK_SIZE 65536

#define USE_CURRENT_X16_BANK (-1)

#define debug_read6502(a, b, x) real_read6502((a), (b), true, (x))

// The write half of the same contract. A debugger's edit updates the machine

// and does nothing else: it spends no cycles and reports no watchpoint, because

// the program did not store anything. The byte is simply what was always there.

#define debug_write6502(a, b, v) real_write6502((a), (b), (v), true)

// X16 r0-r15

#define X16_REG_R0L (direct_page_add(2))

#define X16_REG_R0H (direct_page_add(3))

#define X16_REG_R1L (direct_page_add(4))

#define X16_REG_R1H (direct_page_add(5))

#define X16_REG_R2L (direct_page_add(6))

#define X16_REG_R2H (direct_page_add(7))

#define X16_REG_R3L (direct_page_add(8))

#define X16_REG_R3H (direct_page_add(9))

#define X16_REG_R4L (direct_page_add(10))

#define X16_REG_R4H (direct_page_add(11))

#define X16_REG_R5L (direct_page_add(12))

#define X16_REG_R5H (direct_page_add(13))

#define X16_REG_R6L (direct_page_add(14))

#define X16_REG_R6H (direct_page_add(15))

#define X16_REG_R7L (direct_page_add(16))

#define X16_REG_R7H (direct_page_add(17))

#define X16_REG_R8L (direct_page_add(18))

#define X16_REG_R8H (direct_page_add(19))

#define X16_REG_R9L (direct_page_add(20))

#define X16_REG_R9H (direct_page_add(21))

#define X16_REG_R10L (direct_page_add(22))

#define X16_REG_R10H (direct_page_add(23))

#define X16_REG_R11L (direct_page_add(24))

#define X16_REG_R11H (direct_page_add(25))

#define X16_REG_R12L (direct_page_add(26))

#define X16_REG_R12H (direct_page_add(27))

#define X16_REG_R13L (direct_page_add(28))

#define X16_REG_R13H (direct_page_add(29))

#define X16_REG_R14L (direct_page_add(30))

#define X16_REG_R14H (direct_page_add(31))

#define X16_REG_R15L (direct_page_add(32))

#define X16_REG_R15H (direct_page_add(33))

uint8_t read6502(uint16_t address, uint8_t bank);

uint8_t real_read6502(uint16_t address, uint8_t bank, bool debugOn, int16_t x16Bank);

void write6502(uint16_t address, uint8_t bank, uint8_t value);

void real_write6502(uint16_t address, uint8_t bank, uint8_t value, bool debugOn);

void vp6502();

void memory_init();

void memory_reset();

void memory_report_uninitialized_access(bool);

void memory_report_usage_statistics(const char *filename);

void memory_randomize_ram(bool);

void memory_save(SDL_RWops *f, bool dump_ram, bool dump_bank);

void memory_dump_usage_counts();

void memory_set_ram_bank(uint8_t bank);

void memory_set_rom_bank(uint8_t bank);

uint8_t memory_get_ram_bank();

uint8_t memory_get_rom_bank();

uint8_t emu_read(uint8_t reg, bool debugOn);

void emu_write(uint8_t reg, uint8_t value);

#ifdef __cplusplus

}

#endif

#endif