M CHANGES → CHANGES

@@ -20,6 +20,7 @@ - GB, GBA: Fix emulator hardlocking when halting with IRQs off
  - SDL: Attach rumble in SDL frontend
  - GBA Hardware: Improve Game Boy Player rumble behavior
  - GB: Initialize audio properly
+ - GB MBC: Fix RTC access when no save file is loaded
 Misc:
  - All: Only update version info if needed
  - FFmpeg: Encoding cleanup

M src/gb/mbc.c → src/gb/mbc.c

@@ -624,6 +624,9 @@
 void GBMBCRTCRead(struct GB* gb) {
 	struct GBMBCRTCSaveBuffer rtcBuffer;
 	struct VFile* vf = gb->sramVf;
+	if (!vf) {
+		return;
+	}
 	ssize_t end = vf->seek(vf, -sizeof(rtcBuffer), SEEK_END);
 	switch (end & 0x1FFF) {
 	case 0:
@@ -645,6 +648,11 @@ LOAD_64LE(gb->memory.rtcLastLatch, 0, &rtcBuffer.unixTime);
 }
 
 void GBMBCRTCWrite(struct GB* gb) {
+	struct VFile* vf = gb->sramVf;
+	if (!vf) {
+		return;
+	}
+
 	uint8_t rtcRegs[5];
 	memcpy(rtcRegs, gb->memory.rtcRegs, sizeof(rtcRegs));
 	time_t rtcLastLatch = gb->memory.rtcLastLatch;
@@ -663,7 +671,6 @@ STORE_32LE(gb->memory.rtcRegs[3], 0, &rtcBuffer.latchedDays);
 	STORE_32LE(gb->memory.rtcRegs[4], 0, &rtcBuffer.latchedDaysHi);
 	STORE_64LE(rtcLastLatch, 0, &rtcBuffer.unixTime);
 
-	struct VFile* vf = gb->sramVf;
 	vf->seek(vf, gb->sramSize, SEEK_SET);
 	vf->write(vf, &rtcBuffer, sizeof(rtcBuffer));
 }