165 lines
3.4 KiB
C
165 lines
3.4 KiB
C
/*
|
|
* TamaLIB - A hardware agnostic Tamagotchi P1 emulation library
|
|
*
|
|
* Copyright (C) 2021 Jean-Christophe Rona <jc@rona.fr>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
#ifndef _CPU_H_
|
|
#define _CPU_H_
|
|
|
|
#include "hal.h"
|
|
|
|
#define MEMORY_SIZE 0x140 // MEM_RAM_SIZE + MEM_IO_SIZE
|
|
|
|
#define MEM_RAM_ADDR 0x000
|
|
#define MEM_RAM_SIZE 0x280
|
|
|
|
#define MEM_DISPLAY1_ADDR 0xE00
|
|
#define MEM_DISPLAY1_ADDR_OFS 0xB80
|
|
#define MEM_DISPLAY1_SIZE 0x050
|
|
|
|
#define MEM_DISPLAY2_ADDR 0xE80
|
|
#define MEM_DISPLAY2_ADDR_OFS 0xBB0
|
|
#define MEM_DISPLAY2_SIZE 0x050
|
|
|
|
#define MEM_IO_ADDR 0xF00
|
|
//#define MEM_IO_ADDR_OFS 0xBE0
|
|
#define MEM_IO_ADDR_OFS 0xF00
|
|
#define MEM_IO_SIZE 0x080
|
|
|
|
typedef struct breakpoint {
|
|
u13_t addr;
|
|
struct breakpoint *next;
|
|
} breakpoint_t;
|
|
|
|
|
|
typedef struct {
|
|
u4_t factor_flag_reg;
|
|
u4_t mask_reg;
|
|
bool_t triggered; /* 1 if triggered, 0 otherwise */
|
|
u8_t vector;
|
|
} interrupt_t;
|
|
|
|
typedef struct {
|
|
u13_t pc;
|
|
u12_t x;
|
|
u12_t y;
|
|
u4_t a;
|
|
u4_t b;
|
|
u5_t np;
|
|
u8_t sp;
|
|
u4_t flags;
|
|
u32_t tick_counter;
|
|
u32_t clk_timer_timestamp;
|
|
u32_t prog_timer_timestamp;
|
|
bool_t prog_timer_enabled;
|
|
u8_t prog_timer_data;
|
|
u8_t prog_timer_rld;
|
|
u32_t call_depth;
|
|
u4_t *memory;
|
|
interrupt_t interrupts[6];
|
|
} cpu_state_t;
|
|
|
|
/* Pins (TODO: add other pins) */
|
|
typedef enum {
|
|
PIN_K00 = 0x0,
|
|
PIN_K01 = 0x1,
|
|
PIN_K02 = 0x2,
|
|
PIN_K03 = 0x3,
|
|
PIN_K10 = 0X4,
|
|
PIN_K11 = 0X5,
|
|
PIN_K12 = 0X6,
|
|
PIN_K13 = 0X7,
|
|
} pin_t;
|
|
|
|
typedef enum {
|
|
PIN_STATE_LOW = 0,
|
|
PIN_STATE_HIGH = 1,
|
|
} pin_state_t;
|
|
|
|
typedef enum {
|
|
INT_PROG_TIMER_SLOT = 0,
|
|
INT_SERIAL_SLOT = 1,
|
|
INT_K10_K13_SLOT = 2,
|
|
INT_K00_K03_SLOT = 3,
|
|
INT_STOPWATCH_SLOT = 4,
|
|
INT_CLOCK_TIMER_SLOT = 5,
|
|
INT_SLOT_NUM,
|
|
} int_slot_t;
|
|
|
|
|
|
/*
|
|
typedef struct {
|
|
u13_t *pc;
|
|
u12_t *x;
|
|
u12_t *y;
|
|
u4_t *a;
|
|
u4_t *b;
|
|
u5_t *np;
|
|
u8_t *sp;
|
|
u4_t *flags;
|
|
|
|
u32_t *tick_counter;
|
|
u32_t *clk_timer_timestamp;
|
|
u32_t *prog_timer_timestamp;
|
|
bool_t *prog_timer_enabled;
|
|
u8_t *prog_timer_data;
|
|
u8_t *prog_timer_rld;
|
|
|
|
u32_t *call_depth;
|
|
|
|
interrupt_t *interrupts;
|
|
|
|
u4_t *memory;
|
|
} state_t; */
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
void cpu_add_bp(breakpoint_t **list, u13_t addr);
|
|
void cpu_free_bp(breakpoint_t **list);
|
|
|
|
//void cpu_set_speed(u8_t speed);
|
|
|
|
void cpu_get_state(cpu_state_t *cpustate);
|
|
void cpu_set_state(cpu_state_t *cpustate);
|
|
|
|
u32_t cpu_get_depth(void);
|
|
|
|
void cpu_set_input_pin(pin_t pin, pin_state_t state);
|
|
|
|
void cpu_sync_ref_timestamp(void);
|
|
|
|
void cpu_refresh_hw(void);
|
|
|
|
void cpu_reset(void);
|
|
|
|
//u8_t cpu_get_max_number(void);
|
|
|
|
//bool_t cpu_init(breakpoint_t *breakpoints, u32_t freq);
|
|
|
|
bool_t cpu_init(u32_t freq);
|
|
void cpu_release(void);
|
|
|
|
int cpu_step(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _CPU_H_ */
|