WIP simulator support

.gitignore

@@ -1,4 +1,5 @@
 **/build/
+**/build-sim/
 *.b#*
 *.bin
 *.d

dummy/chips/samd11/startup_samd11.c

@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2024 Joey Castillo
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+//-----------------------------------------------------------------------------
+#define DUMMY __attribute__ ((weak, alias ("irq_handler_dummy")))
+
+//-----------------------------------------------------------------------------
+void irq_handler_reset(void);
+void irq_handler_dummy(void);
+void _exit(int status);
+
+DUMMY void irq_handler_nmi(void);
+DUMMY void irq_handler_hard_fault(void);
+DUMMY void irq_handler_sv_call(void);
+DUMMY void irq_handler_pend_sv(void);
+DUMMY void irq_handler_sys_tick(void);
+
+DUMMY void irq_handler_pm(void);
+DUMMY void irq_handler_sysctrl(void);
+DUMMY void irq_handler_wdt(void);
+DUMMY void irq_handler_rtc(void);
+DUMMY void irq_handler_eic(void);
+DUMMY void irq_handler_nvmctrl(void);
+DUMMY void irq_handler_dmac(void);
+DUMMY void irq_handler_usb(void);
+DUMMY void irq_handler_evsys(void);
+DUMMY void irq_handler_sercom0(void);
+DUMMY void irq_handler_sercom1(void);
+DUMMY void irq_handler_sercom2(void);
+DUMMY void irq_handler_tcc0(void);
+DUMMY void irq_handler_tc1(void);
+DUMMY void irq_handler_tc2(void);
+DUMMY void irq_handler_adc(void);
+DUMMY void irq_handler_ac(void);
+DUMMY void irq_handler_dac(void);
+DUMMY void irq_handler_ptc(void);
+
+extern int main(void);
+
+void _stack_top(void) {};
+extern unsigned int _etext;
+extern unsigned int _data;
+extern unsigned int _edata;
+extern unsigned int _bss;
+extern unsigned int _ebss;
+
+//-----------------------------------------------------------------------------
+__attribute__ ((used, section(".vectors")))
+void (* const vectors[])(void) =
+{
+    &_stack_top,                   // 0 - Initial Stack Pointer Value
+
+    // Cortex-M0+ handlers
+    irq_handler_reset,             // 1 - Reset
+    irq_handler_nmi,               // 2 - NMI
+    irq_handler_hard_fault,        // 3 - Hard Fault
+    0,                             // 4 - Reserved
+    0,                             // 5 - Reserved
+    0,                             // 6 - Reserved
+    0,                             // 7 - Reserved
+    0,                             // 8 - Reserved
+    0,                             // 9 - Reserved
+    0,                             // 10 - Reserved
+    irq_handler_sv_call,           // 11 - SVCall
+    0,                             // 12 - Reserved
+    0,                             // 13 - Reserved
+    irq_handler_pend_sv,           // 14 - PendSV
+    irq_handler_sys_tick,          // 15 - SysTick
+
+    // Peripheral handlers
+    irq_handler_pm,                // 0 - Power Manager
+    irq_handler_sysctrl,           // 1 - System Controller
+    irq_handler_wdt,               // 2 - Watchdog Timer
+    irq_handler_rtc,               // 3 - Real Time Counter
+    irq_handler_eic,               // 4 - External Interrupt Controller
+    irq_handler_nvmctrl,           // 5 - Non-Volatile Memory Controller
+    irq_handler_dmac,              // 6 - Direct Memory Access Controller
+    irq_handler_usb,               // 7 - USB Controller
+    irq_handler_evsys,             // 8 - Event System
+    irq_handler_sercom0,           // 9 - Serial Communication Interface 0
+    irq_handler_sercom1,           // 10 - Serial Communication Interface 1
+    irq_handler_sercom2,           // 11 - Serial Communication Interface 2
+    irq_handler_tcc0,              // 12 - Timer/Counter for Control 0
+    irq_handler_tc1,               // 13 - Timer/Counter 1
+    irq_handler_tc2,               // 14 - Timer/Counter 2
+    irq_handler_adc,               // 15 - Analog-to-Digital Converter
+    irq_handler_ac,                // 16 - Analog Comparator
+    irq_handler_dac,               // 17 - Digital-to-Analog Converter
+    irq_handler_ptc,               // 18 - Peripheral Touch Controller
+};
+
+//-----------------------------------------------------------------------------
+void irq_handler_reset(void)
+{
+    main();
+
+    while (1);
+}
+
+//-----------------------------------------------------------------------------
+void irq_handler_dummy(void)
+{
+    while (1);
+}
+
+//-----------------------------------------------------------------------------
+void _exit(int status)
+{
+    (void)status;
+    while (1);
+}

dummy/chips/samd11/system_samd11.c

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2024 Joey Castillo
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "system.h"
+#include "pins.h"
+
+const tc_instance_details_t TC_Peripherals[] = {
+};
+const uint8_t Num_TC_Instances = 0;
+const uint8_t TC_First_Index = 0;
+
+const tcc_instance_details_t TCC_Peripherals[] = {
+};
+const uint8_t Num_TCC_Instances = 0;
+
+const sercom_instance_details_t SERCOM_Peripherals[] = {
+};
+const uint8_t Num_SERCOM_Instances = 0;
+
+//-----------------------------------------------------------------------------
+void sys_init(void) {
+}
+
+void _enable_48mhz_gclk1(void) {
+}
+
+uint32_t get_cpu_frequency(void) {
+    return 8000000;
+}
+
+bool set_cpu_frequency(uint32_t freq) {
+    return false;
+}
+
+void _enter_standby_mode() {
+}

dummy/chips/samd21/startup_samd21.c

@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 2024 Joey Castillo
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+//-----------------------------------------------------------------------------
+#define DUMMY __attribute__ ((weak, alias ("irq_handler_dummy")))
+
+//-----------------------------------------------------------------------------
+void irq_handler_reset(void);
+void irq_handler_dummy(void);
+void _exit(int status);
+
+DUMMY void irq_handler_nmi(void);
+DUMMY void irq_handler_hard_fault(void);
+DUMMY void irq_handler_sv_call(void);
+DUMMY void irq_handler_pend_sv(void);
+DUMMY void irq_handler_sys_tick(void);
+
+DUMMY void irq_handler_pm(void);
+DUMMY void irq_handler_sysctrl(void);
+DUMMY void irq_handler_wdt(void);
+DUMMY void irq_handler_rtc(void);
+DUMMY void irq_handler_eic(void);
+DUMMY void irq_handler_nvmctrl(void);
+DUMMY void irq_handler_dmac(void);
+DUMMY void irq_handler_usb(void);
+DUMMY void irq_handler_evsys(void);
+DUMMY void irq_handler_sercom0(void);
+DUMMY void irq_handler_sercom1(void);
+DUMMY void irq_handler_sercom2(void);
+DUMMY void irq_handler_sercom3(void);
+DUMMY void irq_handler_sercom4(void);
+DUMMY void irq_handler_sercom5(void);
+DUMMY void irq_handler_tcc0(void);
+DUMMY void irq_handler_tcc1(void);
+DUMMY void irq_handler_tcc2(void);
+DUMMY void irq_handler_tc3(void);
+DUMMY void irq_handler_tc4(void);
+DUMMY void irq_handler_tc5(void);
+DUMMY void irq_handler_tc6(void);
+DUMMY void irq_handler_tc7(void);
+DUMMY void irq_handler_adc(void);
+DUMMY void irq_handler_ac(void);
+DUMMY void irq_handler_dac(void);
+DUMMY void irq_handler_ptc(void);
+DUMMY void irq_handler_i2s(void);
+
+extern int main(void);
+
+void _stack_top(void) {};
+extern unsigned int _etext;
+extern unsigned int _data;
+extern unsigned int _edata;
+extern unsigned int _bss;
+extern unsigned int _ebss;
+
+//-----------------------------------------------------------------------------
+__attribute__ ((used, section(".vectors")))
+void (* const vectors[])(void) =
+{
+    &_stack_top,                   // 0 - Initial Stack Pointer Value
+
+    // Cortex-M0+ handlers
+    irq_handler_reset,             // 1 - Reset
+    irq_handler_nmi,               // 2 - NMI
+    irq_handler_hard_fault,        // 3 - Hard Fault
+    0,                             // 4 - Reserved
+    0,                             // 5 - Reserved
+    0,                             // 6 - Reserved
+    0,                             // 7 - Reserved
+    0,                             // 8 - Reserved
+    0,                             // 9 - Reserved
+    0,                             // 10 - Reserved
+    irq_handler_sv_call,           // 11 - SVCall
+    0,                             // 12 - Reserved
+    0,                             // 13 - Reserved
+    irq_handler_pend_sv,           // 14 - PendSV
+    irq_handler_sys_tick,          // 15 - SysTick
+
+    // Peripheral handlers
+    irq_handler_pm,                // 0 - Power Manager
+    irq_handler_sysctrl,           // 1 - System Controller
+    irq_handler_wdt,               // 2 - Watchdog Timer
+    irq_handler_rtc,               // 3 - Real Time Counter
+    irq_handler_eic,               // 4 - External Interrupt Controller
+    irq_handler_nvmctrl,           // 5 - Non-Volatile Memory Controller
+    irq_handler_dmac,              // 6 - Direct Memory Access Controller
+    irq_handler_usb,               // 7 - Universal Serial Bus Controller
+    irq_handler_evsys,             // 8 - Event System
+    irq_handler_sercom0,           // 9 - Serial Communication Interface 0
+    irq_handler_sercom1,           // 10 - Serial Communication Interface 1
+    irq_handler_sercom2,           // 11 - Serial Communication Interface 2
+    irq_handler_sercom3,           // 12 - Serial Communication Interface 3
+    irq_handler_sercom4,           // 13 - Serial Communication Interface 4
+    irq_handler_sercom5,           // 14 - Serial Communication Interface 5
+    irq_handler_tcc0,              // 15 - Timer/Counter for Control 0
+    irq_handler_tcc1,              // 16 - Timer/Counter for Control 1
+    irq_handler_tcc2,              // 17 - Timer/Counter for Control 2
+    irq_handler_tc3,               // 18 - Timer/Counter 3
+    irq_handler_tc4,               // 19 - Timer/Counter 4
+    irq_handler_tc5,               // 20 - Timer/Counter 5
+    irq_handler_tc6,               // 21 - Timer/Counter 6
+    irq_handler_tc7,               // 22 - Timer/Counter 7
+    irq_handler_adc,               // 23 - Analog-to-Digital Converter
+    irq_handler_ac,                // 24 - Analog Comparator
+    irq_handler_dac,               // 25 - Digital-to-Analog Converter
+    irq_handler_ptc,               // 26 - Peripheral Touch Controller
+    irq_handler_i2s,               // 27 - Inter-IC Sound Interface
+};
+
+//-----------------------------------------------------------------------------
+void irq_handler_reset(void)
+{
+    main();
+
+    while (1);
+}
+
+//-----------------------------------------------------------------------------
+void irq_handler_dummy(void)
+{
+    while (1);
+}
+
+//-----------------------------------------------------------------------------
+void _exit(int status)
+{
+    (void)status;
+    while (1);
+}