Update Files

Kha/Kinc/miniClib/memory.c

@@ -0,0 +1,68 @@
+#include "stdlib.h"
+
+#ifdef KINC_WASM
+__attribute__((import_module("imports"), import_name("js_fprintf"))) void js_fprintf(const char *format);
+
+#define HEAP_SIZE 1024 * 1024 * 8
+static unsigned char heap[HEAP_SIZE];
+static size_t heap_top = 4;
+#endif
+
+#ifdef KINC_WASM
+__attribute__((export_name("malloc"))) 
+#endif
+void *malloc(size_t size) {
+#ifdef KINC_WASM
+	// Align to 4 bytes to make js typed arrays work
+	if (size % 4 != 0) {
+		size += 4 - size % 4;
+	}
+	size_t old_top = heap_top;
+	heap_top += size;
+	if (heap_top >= HEAP_SIZE) {
+		js_fprintf("malloc: out of memory");
+	}
+	return &heap[old_top];
+#endif
+	return NULL;
+}
+
+void *alloca(size_t size) {
+	return NULL;
+}
+
+void *realloc(void *mem, size_t size) {
+	return NULL;
+}
+
+void free(void *mem) {
+
+}
+
+void *memset(void *ptr, int value, size_t num) {
+	unsigned char *data = (unsigned char *)ptr;
+	for (size_t i = 0; i < num; ++i) {
+		data[i] = (unsigned char)value;
+	}
+	return ptr;
+}
+
+void *memcpy(void *destination, const void *source, size_t num) {
+	unsigned char *s = (unsigned char *)source;
+	unsigned char *d = (unsigned char *)destination;
+	for (size_t i = 0; i < num; ++i) {
+		d[i] = s[i];
+	}
+	return destination;
+}
+
+int memcmp(const void *ptr1, const void *ptr2, size_t num) {
+	unsigned char *p1 = (unsigned char *)ptr1;
+	unsigned char *p2 = (unsigned char *)ptr2;
+	for (size_t i = 0; i < num; ++i) {
+		if (p1[i] != p2[i]) {
+			return (int)p1[i] - (int)p2[i];
+		}
+	}
+	return 0;
+}