ports: Make new ports/ sub-directory and move all ports there.

This is to keep the top-level directory clean, to make it clear what is
core and what is a port, and to allow the repository to grow with new ports
in a sustainable way.

1 files changed, 0 insertions, 257 deletions

diff --git a/minimal/main.c b/minimal/main.c
deleted file mode 100644
index e28cfe45e..000000000
--- a/minimal/main.c
+++ /dev/null
@@ -1,257 +0,0 @@
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "py/nlr.h"
-#include "py/compile.h"
-#include "py/runtime.h"
-#include "py/repl.h"
-#include "py/gc.h"
-#include "py/mperrno.h"
-#include "lib/utils/pyexec.h"
-
-#if MICROPY_ENABLE_COMPILER
-void do_str(const char *src, mp_parse_input_kind_t input_kind) {
-    nlr_buf_t nlr;
-    if (nlr_push(&nlr) == 0) {
-        mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
-        qstr source_name = lex->source_name;
-        mp_parse_tree_t parse_tree = mp_parse(lex, input_kind);
-        mp_obj_t module_fun = mp_compile(&parse_tree, source_name, MP_EMIT_OPT_NONE, true);
-        mp_call_function_0(module_fun);
-        nlr_pop();
-    } else {
-        // uncaught exception
-        mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
-    }
-}
-#endif
-
-static char *stack_top;
-static char heap[2048];
-
-int main(int argc, char **argv) {
-    int stack_dummy;
-    stack_top = (char*)&stack_dummy;
-
-    #if MICROPY_ENABLE_GC
-    gc_init(heap, heap + sizeof(heap));
-    #endif
-    mp_init();
-    #if MICROPY_ENABLE_COMPILER
-    #if MICROPY_REPL_EVENT_DRIVEN
-    pyexec_event_repl_init();
-    for (;;) {
-        int c = mp_hal_stdin_rx_chr();
-        if (pyexec_event_repl_process_char(c)) {
-            break;
-        }
-    }
-    #else
-    pyexec_friendly_repl();
-    #endif
-    //do_str("print('hello world!', list(x+1 for x in range(10)), end='eol\\n')", MP_PARSE_SINGLE_INPUT);
-    //do_str("for i in range(10):\r\n  print(i)", MP_PARSE_FILE_INPUT);
-    #else
-    pyexec_frozen_module("frozentest.py");
-    #endif
-    mp_deinit();
-    return 0;
-}
-
-void gc_collect(void) {
-    // WARNING: This gc_collect implementation doesn't try to get root
-    // pointers from CPU registers, and thus may function incorrectly.
-    void *dummy;
-    gc_collect_start();
-    gc_collect_root(&dummy, ((mp_uint_t)stack_top - (mp_uint_t)&dummy) / sizeof(mp_uint_t));
-    gc_collect_end();
-    gc_dump_info();
-}
-
-mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
-    mp_raise_OSError(MP_ENOENT);
-}
-
-mp_import_stat_t mp_import_stat(const char *path) {
-    return MP_IMPORT_STAT_NO_EXIST;
-}
-
-mp_obj_t mp_builtin_open(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
-    return mp_const_none;
-}
-MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
-
-void nlr_jump_fail(void *val) {
-    while (1);
-}
-
-void NORETURN __fatal_error(const char *msg) {
-    while (1);
-}
-
-#ifndef NDEBUG
-void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
-    printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
-    __fatal_error("Assertion failed");
-}
-#endif
-
-#if MICROPY_MIN_USE_CORTEX_CPU
-
-// this is a minimal IRQ and reset framework for any Cortex-M CPU
-
-extern uint32_t _estack, _sidata, _sdata, _edata, _sbss, _ebss;
-
-void Reset_Handler(void) __attribute__((naked));
-void Reset_Handler(void) {
-    // set stack pointer
-    __asm volatile ("ldr sp, =_estack");
-    // copy .data section from flash to RAM
-    for (uint32_t *src = &_sidata, *dest = &_sdata; dest < &_edata;) {
-        *dest++ = *src++;
-    }
-    // zero out .bss section
-    for (uint32_t *dest = &_sbss; dest < &_ebss;) {
-        *dest++ = 0;
-    }
-    // jump to board initialisation
-    void _start(void);
-    _start();
-}
-
-void Default_Handler(void) {
-    for (;;) {
-    }
-}
-
-const uint32_t isr_vector[] __attribute__((section(".isr_vector"))) = {
-    (uint32_t)&_estack,
-    (uint32_t)&Reset_Handler,
-    (uint32_t)&Default_Handler, // NMI_Handler
-    (uint32_t)&Default_Handler, // HardFault_Handler
-    (uint32_t)&Default_Handler, // MemManage_Handler
-    (uint32_t)&Default_Handler, // BusFault_Handler
-    (uint32_t)&Default_Handler, // UsageFault_Handler
-    0,
-    0,
-    0,
-    0,
-    (uint32_t)&Default_Handler, // SVC_Handler
-    (uint32_t)&Default_Handler, // DebugMon_Handler
-    0,
-    (uint32_t)&Default_Handler, // PendSV_Handler
-    (uint32_t)&Default_Handler, // SysTick_Handler
-};
-
-void _start(void) {
-    // when we get here: stack is initialised, bss is clear, data is copied
-
-    // SCB->CCR: enable 8-byte stack alignment for IRQ handlers, in accord with EABI
-    *((volatile uint32_t*)0xe000ed14) |= 1 << 9;
-
-    // initialise the cpu and peripherals
-    #if MICROPY_MIN_USE_STM32_MCU
-    void stm32_init(void);
-    stm32_init();
-    #endif
-
-    // now that we have a basic system up and running we can call main
-    main(0, NULL);
-
-    // we must not return
-    for (;;) {
-    }
-}
-
-#endif
-
-#if MICROPY_MIN_USE_STM32_MCU
-
-// this is minimal set-up code for an STM32 MCU
-
-typedef struct {
-    volatile uint32_t CR;
-    volatile uint32_t PLLCFGR;
-    volatile uint32_t CFGR;
-    volatile uint32_t CIR;
-    uint32_t _1[8];
-    volatile uint32_t AHB1ENR;
-    volatile uint32_t AHB2ENR;
-    volatile uint32_t AHB3ENR;
-    uint32_t _2;
-    volatile uint32_t APB1ENR;
-    volatile uint32_t APB2ENR;
-} periph_rcc_t;
-
-typedef struct {
-    volatile uint32_t MODER;
-    volatile uint32_t OTYPER;
-    volatile uint32_t OSPEEDR;
-    volatile uint32_t PUPDR;
-    volatile uint32_t IDR;
-    volatile uint32_t ODR;
-    volatile uint16_t BSRRL;
-    volatile uint16_t BSRRH;
-    volatile uint32_t LCKR;
-    volatile uint32_t AFR[2];
-} periph_gpio_t;
-
-typedef struct {
-    volatile uint32_t SR;
-    volatile uint32_t DR;
-    volatile uint32_t BRR;
-    volatile uint32_t CR1;
-} periph_uart_t;
-
-#define USART1 ((periph_uart_t*) 0x40011000)
-#define GPIOA  ((periph_gpio_t*) 0x40020000)
-#define GPIOB  ((periph_gpio_t*) 0x40020400)
-#define RCC    ((periph_rcc_t*)  0x40023800)
-
-// simple GPIO interface
-#define GPIO_MODE_IN (0)
-#define GPIO_MODE_OUT (1)
-#define GPIO_MODE_ALT (2)
-#define GPIO_PULL_NONE (0)
-#define GPIO_PULL_UP (0)
-#define GPIO_PULL_DOWN (1)
-void gpio_init(periph_gpio_t *gpio, int pin, int mode, int pull, int alt) {
-    gpio->MODER = (gpio->MODER & ~(3 << (2 * pin))) | (mode << (2 * pin));
-    // OTYPER is left as default push-pull
-    // OSPEEDR is left as default low speed
-    gpio->PUPDR = (gpio->PUPDR & ~(3 << (2 * pin))) | (pull << (2 * pin));
-    gpio->AFR[pin >> 3] = (gpio->AFR[pin >> 3] & ~(15 << (4 * (pin & 7)))) | (alt << (4 * (pin & 7)));
-}
-#define gpio_get(gpio, pin) ((gpio->IDR >> (pin)) & 1)
-#define gpio_set(gpio, pin, value) do { gpio->ODR = (gpio->ODR & ~(1 << (pin))) | (value << pin); } while (0)
-#define gpio_low(gpio, pin) do { gpio->BSRRH = (1 << (pin)); } while (0)
-#define gpio_high(gpio, pin) do { gpio->BSRRL = (1 << (pin)); } while (0)
-
-void stm32_init(void) {
-    // basic MCU config
-    RCC->CR |= (uint32_t)0x00000001; // set HSION
-    RCC->CFGR = 0x00000000; // reset all
-    RCC->CR &= (uint32_t)0xfef6ffff; // reset HSEON, CSSON, PLLON
-    RCC->PLLCFGR = 0x24003010; // reset PLLCFGR
-    RCC->CR &= (uint32_t)0xfffbffff; // reset HSEBYP
-    RCC->CIR = 0x00000000; // disable IRQs
-
-    // leave the clock as-is (internal 16MHz)
-
-    // enable GPIO clocks
-    RCC->AHB1ENR |= 0x00000003; // GPIOAEN, GPIOBEN
-
-    // turn on an LED! (on pyboard it's the red one)
-    gpio_init(GPIOA, 13, GPIO_MODE_OUT, GPIO_PULL_NONE, 0);
-    gpio_high(GPIOA, 13);
-
-    // enable UART1 at 9600 baud (TX=B6, RX=B7)
-    gpio_init(GPIOB, 6, GPIO_MODE_ALT, GPIO_PULL_NONE, 7);
-    gpio_init(GPIOB, 7, GPIO_MODE_ALT, GPIO_PULL_NONE, 7);
-    RCC->APB2ENR |= 0x00000010; // USART1EN
-    USART1->BRR = (104 << 4) | 3; // 16MHz/(16*104.1875) = 9598 baud
-    USART1->CR1 = 0x0000200c; // USART enable, tx enable, rx enable
-}
-
-#endif