40 lines
815 B
C
40 lines
815 B
C
#include <stdint.h>
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#include "std.h"
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static uint32_t mem = 0;
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void *malloc(size_t n) {
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if (mem == 0) {
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extern uint32_t _heap_start;
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mem = (uint32_t)&_heap_start; // need to use big ram block so we can execute code from it (is it true that we can't execute from CCM?)
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}
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void *ptr = (void*)mem;
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mem = (mem + n + 3) & (~3);
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if (mem > 0x20000000 + 0x18000) {
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void __fatal_error(const char*);
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__fatal_error("out of memory");
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}
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return ptr;
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}
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void free(void *ptr) {
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}
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void *calloc(size_t sz, size_t n) {
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char *ptr = malloc(sz * n);
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for (int i = 0; i < sz * n; i++) {
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ptr[i] = 0;
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}
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return ptr;
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}
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void *realloc(void *ptr, size_t n) {
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return malloc(n);
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}
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void __assert_func() {
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printf("\nASSERT FAIL!");
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for (;;) {
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}
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}
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