psxbios.c: Cleanup buopen()

- This just silences some [-Wpointer-sign] warning from last PR

diff --git a/libpcsxcore/psxbios.c b/libpcsxcore/psxbios.c
index 388d606..ed43045 100644 (file)
--- a/libpcsxcore/psxbios.c
+++ b/libpcsxcore/psxbios.c
@@ -2025,17 +2025,18 @@ void psxBios_UnDeliverEvent() { // 0x20
 
 char ffile[64], *pfile;
 int nfile;
-static void buopen(int mcd, u8 *ptr, u8 *cfg)
+
+static void buopen(int mcd, char *ptr, char *cfg)
 {
        int i;
-       u8 *fptr = ptr;
+       char *mcd_data = ptr;
 
        strcpy(FDesc[1 + mcd].name, Ra0+5);
        FDesc[1 + mcd].offset = 0;
        FDesc[1 + mcd].mode   = a1;
 
        for (i=1; i<16; i++) {
-               fptr += 128;
+               const char *fptr = mcd_data + 128 * i;
                if ((*fptr & 0xF0) != 0x50) continue;
                if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
                FDesc[1 + mcd].mcfile = i;
@@ -2044,12 +2045,11 @@ static void buopen(int mcd, u8 *ptr, u8 *cfg)
                break;
        }
        if (a1 & 0x200 && v0 == -1) { /* FCREAT */
-               fptr = ptr;
                for (i=1; i<16; i++) {
                        int j, xor, nblk = a1 >> 16;
-                       u8 *pptr, *fptr2;
+                       char *pptr, *fptr2;
+                       char *fptr = mcd_data + 128 * i;
 
-                       fptr += 128;
                        if ((*fptr & 0xF0) != 0xa0) continue;
 
                        FDesc[1 + mcd].mcfile = i;
@@ -2094,8 +2094,6 @@ static void buopen(int mcd, u8 *ptr, u8 *cfg)
  */
 
 void psxBios_open() { // 0x32
-       int i;
-       char *ptr;
        void *pa0 = Ra0;
 
 #ifdef PSXBIOS_LOG