psxbios: Return 0x1f801814 for gpu_abort_dma

Nocash documentation says that it returns the I/O address.
I doubt any games use it so but it doesn't hurt to have it.

diff --git a/libpcsxcore/psxbios.c b/libpcsxcore/psxbios.c
index 58581e9..775fba7 100644 (file)
--- a/libpcsxcore/psxbios.c
+++ b/libpcsxcore/psxbios.c
@@ -1191,7 +1191,7 @@ void psxBios_sys_a0_4c() { // 0x4c GPU relate
        GPU_writeData(0x0400000);
        GPU_writeData(0x0200000);
        GPU_writeData(0x0100000);
-
+       v0 = 0x1f801814;
        pc0 = ra;
 }