CubeGotchi/tamalib.c

172 lines
3.3 KiB
C
Raw Normal View History

2024-06-11 16:36:51 +00:00
/*
* 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();
}
}
}