bios: fix firstfile() return value

it should only return dir when finds a match,
bufile macro already does that.

diff --git a/libpcsxcore/psxbios.c b/libpcsxcore/psxbios.c
index 005e1bb..aa49b23 100644 (file)
--- a/libpcsxcore/psxbios.c
+++ b/libpcsxcore/psxbios.c
@@ -1869,12 +1869,8 @@ void psxBios_firstfile() { // 42
        nfile = 1;
        if (!strncmp(Ra0, "bu00", 4)) {
                bufile(1);
-               v0 = _dir;
-       }
-
-       if (!strncmp(Ra0, "bu10", 4)) {
+       } else if (!strncmp(Ra0, "bu10", 4)) {
                bufile(2);
-               v0 = _dir;
        }
 
        pc0 = ra;