X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Futil.c;h=2d98ee8a3265a37b0aec7447178f8df6e2b36fd8;hb=53c0ee3332822465be7dcf923ca3c6445076b555;hp=9bba42f7bef7ea0cd0edabd931b0df97b627cc3b;hpb=f57fab6afe62f2a476ef4afa1842c81722816451;p=gbajam22

diff --git a/src/util.c b/src/util.c
index 9bba42f..2d98ee8 100644
--- a/src/util.c
+++ b/src/util.c
@@ -1,7 +1,15 @@
+#include <stdlib.h>
+#include <string.h>
 #include "util.h"
 #include "debug.h"
 
+#ifdef BUILD_GBA
 extern char __iheap_start;
+#else
+#define IWRAM_POOL_SZ	32768
+#define __iheap_start	iwram[0]
+static char iwram[IWRAM_POOL_SZ];
+#endif
 static char *top = &__iheap_start;
 
 int iwram_brk(void *addr)
@@ -9,6 +17,7 @@ int iwram_brk(void *addr)
 	if((char*)addr < &__iheap_start) {
 		addr = &__iheap_start;
 	}
+	emuprint("iwram brk: %p (sp: %p)", addr, get_sp());
 	if(addr > get_sp()) {
 		/*return -1;*/
 		panic(get_pc(), "iwram_brk (%p) >= sp", addr);
@@ -23,3 +32,82 @@ void *iwram_sbrk(intptr_t delta)
 	iwram_brk(top + delta);
 	return prev;
 }
+
+int ispow2(unsigned int x)
+{
+	int cnt = 0;
+	while(x) {
+		if(x & 1) cnt++;
+		x >>= 1;
+	}
+	return cnt == 1;
+}
+
+
+
+void *malloc_nf_impl(size_t sz, const char *file, int line)
+{
+	void *p;
+	if(!(p = malloc(sz))) {
+		panic(get_pc(), "%s:%d malloc %lu\n", file, line, (unsigned long)sz);
+	}
+	return p;
+}
+
+void *calloc_nf_impl(size_t num, size_t sz, const char *file, int line)
+{
+	void *p;
+	if(!(p = calloc(num, sz))) {
+		panic(get_pc(), "%s:%d calloc %lu\n", file, line, (unsigned long)(num * sz));
+	}
+	return p;
+}
+
+void *realloc_nf_impl(void *p, size_t sz, const char *file, int line)
+{
+	if(!(p = realloc(p, sz))) {
+		panic(get_pc(), "%s:%d realloc %lu\n", file, line, (unsigned long)sz);
+	}
+	return p;
+}
+
+char *strdup_nf_impl(const char *s, const char *file, int line)
+{
+	int len;
+	char *res;
+
+	len = strlen(s);
+	if(!(res = malloc(len + 1))) {
+		panic(get_pc(), "%s:%d strdup\n", file, line);
+	}
+	memcpy(res, s, len + 1);
+	return res;
+}
+
+#ifndef BUILD_GBA
+/* utility functions which are implemented in assembly on GBA builds */
+
+void fillblock_16byte(void *dest, uint32_t val, int count)
+{
+	int i;
+	uint32_t *p = dest;
+
+	for(i=0; i<count; i++) {
+		p[0] = val;
+		p[1] = val;
+		p[2] = val;
+		p[3] = val;
+		p += 4;
+	}
+}
+
+void *get_pc(void)
+{
+	return 0;	/* not useful on PC builds */
+}
+
+void *get_sp(void)
+{
+	return (void*)-1;	/* not useful on PC builds */
+}
+#endif