Don't lockup on writes to !TIME or !FDC regions regardless of whether anything is mapped there

1 files changed, 2 insertions, 2 deletions

diff --git a/genesis.c b/genesis.c
index c6dc8c0..be51b40 100644
--- a/genesis.c
+++ b/genesis.c
@@ -1120,7 +1120,7 @@ static void *unused_write(uint32_t location, void *vcontext, uint16_t value)
 		gen->tmss_lock[location >> 1 & 1] = value;
 	} else if (has_tmss && location == 0xA14100) {
 		//TODO: implement TMSS control register
-	} else {
+	} else if (location < 0xA12000 || location >= 0xA13100 || (location >= 0xA12100 && location < 0xA13000)) {
 		fatal_error("Machine freeze due to unmapped write to %X\n", location);
 	}
 	return vcontext;
@@ -1142,7 +1142,7 @@ static void *unused_write_b(uint32_t location, void *vcontext, uint8_t value)
 		}
 	} else if (has_tmss && (location == 0xA14100 || location == 0xA14101)) {
 		//TODO: implement TMSS control register
-	} else {
+	} else if (location < 0xA12000 || location >= 0xA13100 || (location >= 0xA12100 && location < 0xA13000)) {
 		fatal_error("Machine freeze due to unmapped byte write to %X\n", location);
 	}
 	return vcontext;