172 lines
3.3 KiB
C
172 lines
3.3 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.
|
|
*/
|
|
#include "tamalib.h"
|
|
#include "hw.h"
|
|
#include "cpu.h"
|
|
#include "hal.h"
|
|
|
|
#define DEFAULT_FRAMERATE 6// fps
|
|
|
|
static exec_mode_t exec_mode = EXEC_MODE_RUN;
|
|
|
|
static u32_t step_depth = 0;
|
|
|
|
static timestamp_t screen_ts = 0;
|
|
|
|
static u32_t ts_freq;
|
|
|
|
static u8_t g_framerate = DEFAULT_FRAMERATE;
|
|
|
|
hal_t *g_hal;
|
|
|
|
|
|
bool_t tamalib_init(u32_t freq)
|
|
//bool_t tamalib_init(breakpoint_t *breakpoints, u32_t freq)
|
|
{
|
|
bool_t res = 0;
|
|
res |= cpu_init( freq);
|
|
|
|
// res |= cpu_init(program, breakpoints, freq);
|
|
res |= hw_init();
|
|
|
|
ts_freq = freq;
|
|
|
|
return res;
|
|
}
|
|
|
|
/*
|
|
void tamalib_release(void)
|
|
{
|
|
hw_release();
|
|
cpu_release();
|
|
}*/
|
|
|
|
|
|
void tamalib_set_framerate(u8_t framerate)
|
|
{
|
|
g_framerate = framerate;
|
|
}
|
|
/*
|
|
u8_t tamalib_get_framerate(void)
|
|
{
|
|
|
|
//return g_framerate;
|
|
return DEFAULT_FRAMERATE;
|
|
}
|
|
*/
|
|
void tamalib_register_hal(hal_t *hal)
|
|
{
|
|
g_hal = hal;
|
|
}
|
|
/*
|
|
void tamalib_set_exec_mode(exec_mode_t mode)
|
|
{
|
|
exec_mode = mode;
|
|
step_depth = cpu_get_depth();
|
|
cpu_sync_ref_timestamp();
|
|
}
|
|
*/
|
|
|
|
/*
|
|
void tamalib_step(void)
|
|
{
|
|
if (exec_mode == EXEC_MODE_PAUSE) {
|
|
return;
|
|
}
|
|
|
|
if (cpu_step()) {
|
|
exec_mode = EXEC_MODE_PAUSE;
|
|
step_depth = cpu_get_depth();
|
|
} else {
|
|
switch (exec_mode) {
|
|
case EXEC_MODE_PAUSE:
|
|
case EXEC_MODE_RUN:
|
|
break;
|
|
|
|
case EXEC_MODE_STEP:
|
|
exec_mode = EXEC_MODE_PAUSE;
|
|
break;
|
|
|
|
case EXEC_MODE_NEXT:
|
|
if (cpu_get_depth() <= step_depth) {
|
|
exec_mode = EXEC_MODE_PAUSE;
|
|
step_depth = cpu_get_depth();
|
|
}
|
|
break;
|
|
|
|
case EXEC_MODE_TO_CALL:
|
|
if (cpu_get_depth() > step_depth) {
|
|
exec_mode = EXEC_MODE_PAUSE;
|
|
step_depth = cpu_get_depth();
|
|
}
|
|
break;
|
|
|
|
case EXEC_MODE_TO_RET:
|
|
if (cpu_get_depth() < step_depth) {
|
|
exec_mode = EXEC_MODE_PAUSE;
|
|
step_depth = cpu_get_depth();
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
*/
|
|
/*
|
|
void tamalib_mainloop(void)
|
|
{
|
|
timestamp_t ts;
|
|
|
|
while (!g_hal->handler()) {
|
|
tamalib_step();
|
|
|
|
ts = g_hal->get_timestamp();
|
|
if (ts - screen_ts >= ts_freq/g_framerate) {
|
|
screen_ts = ts;
|
|
g_hal->update_screen();
|
|
}
|
|
}
|
|
} */
|
|
|
|
void tamalib_mainloop_step_by_step(void)
|
|
{
|
|
timestamp_t ts;
|
|
|
|
if (!g_hal->handler()) {
|
|
//tamalib_step();
|
|
|
|
if (exec_mode == EXEC_MODE_RUN) {
|
|
if (cpu_step()) {
|
|
exec_mode = EXEC_MODE_PAUSE;
|
|
step_depth = cpu_get_depth();
|
|
}
|
|
}
|
|
|
|
|
|
/* Update the screen @ g_framerate fps */
|
|
ts = g_hal->get_timestamp();
|
|
|
|
if (ts - screen_ts >= ts_freq/g_framerate) {
|
|
//if (ts - screen_ts >= ts_freq/DEFAULT_FRAMERATE) {
|
|
screen_ts = ts;
|
|
g_hal->update_screen();
|
|
}
|
|
}
|
|
}
|