tama fixes

2026-05-20 04:54:45 -07:00 · 2022-09-16 19:45:34 -04:00
parent 10049fdfca
commit a29cbf977c
10 changed files with 2898 additions and 0 deletions
--- a/applications/plugins/tama_p1/tamalib/tamalib.c
+++ b/applications/plugins/tama_p1/tamalib/tamalib.c
@@ -0,0 +1,137 @@
+/*
+ * 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				30 // 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(const u12_t *program, breakpoint_t *breakpoints, u32_t freq)
+{
+	bool_t res = 0;
+
+	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;
+}
+
+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();
+
+		/* Update the screen @ g_framerate fps */
+		ts = g_hal->get_timestamp();
+		if (ts - screen_ts >= ts_freq/g_framerate) {
+			screen_ts = ts;
+			g_hal->update_screen();
+		}
+	}
+}