be stricter about ACIA memory addresses

2024-02-24 13:02:27 +00:00 · 2024-02-24 13:02:27 +00:00 · 2baab0f856
parent 3af6b4d3f7
commit 2baab0f856
1 changed files with 5 additions and 1 deletions
--- a/acia.cpp
+++ b/acia.cpp
@ -50,7 +50,11 @@ void ACIA::write_data(uint8_t b) {
 }

 uint8_t ACIA::read(Memory::address a) {
-	return (a & 1)? read_data(): read_status();
+	if (a == 0)
+		return read_status();
+	if (a == 1)
+		return read_data();
+	return 0;
 }

 uint8_t ACIA::read_data() {