+int psxHwFreeze(void *f, int Mode);
+
+void psxHwWriteIstat(u32 value);
+void psxHwWriteImask(u32 value);
+void psxHwWriteChcr0(u32 value);
+void psxHwWriteChcr1(u32 value);
+void psxHwWriteChcr2(u32 value);
+void psxHwWriteChcr3(u32 value);
+void psxHwWriteChcr4(u32 value);
+void psxHwWriteChcr6(u32 value);
+void psxHwWriteDmaIcr32(u32 value);
+void psxHwWriteGpuSR(u32 value);
+u32 psxHwReadGpuSR(void);
+u32 psxHwReadGpuSRbusyHack(void);