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psxbios : Add checks to index and rindex calls
[pcsx_rearmed.git]
/
libpcsxcore
/
psxbios.c
diff --git
a/libpcsxcore/psxbios.c
b/libpcsxcore/psxbios.c
index
010a229
..
67a01e5
100644
(file)
--- a/
libpcsxcore/psxbios.c
+++ b/
libpcsxcore/psxbios.c
@@
-610,7
+610,13
@@
void psxBios_strlen() { // 0x1b
void psxBios_index() { // 0x1c
char *p = (char *)Ra0;
void psxBios_index() { // 0x1c
char *p = (char *)Ra0;
-
+ if (a0 == 0)
+ {
+ v0 = 0;
+ pc0 = ra;
+ return;
+ }
+
do {
if (*p == a1) {
v0 = a0 + (p - (char *)Ra0);
do {
if (*p == a1) {
v0 = a0 + (p - (char *)Ra0);
@@
-626,7
+632,11
@@
void psxBios_rindex() { // 0x1d
char *p = (char *)Ra0;
v0 = 0;
char *p = (char *)Ra0;
v0 = 0;
-
+ if (a0 == 0)
+ {
+ pc0 = ra;
+ return;
+ }
do {
if (*p == a1)
v0 = a0 + (p - (char *)Ra0);
do {
if (*p == a1)
v0 = a0 + (p - (char *)Ra0);