IEC serial bytes have 8 bits, not 9. Fix logic to count 8 bits on TX

2019-05-01 22:16:33 +09:30
1 parent 7caae74955
commit 3a8200d66d
@@ -62,7 +62,7 @@ iec_tx_byte_l1:
 	;; More bits to send?
 	pla
 	dex
-	bpl iec_tx_byte_nextbit
+	bne iec_tx_byte_nextbit

 	;; Done sending bits. Wait for acknowledgement
 	jsr iec_assert_clk_release_data
@@ -2,6 +2,6 @@
 iec_wait20us:	
 	;; Wait 20usec
 	;; JSR + RTS already costs 12, so need only 8 more
-	ldx $dd00
-	ldx $dd00
+	ldy $dd00
+	ldy $dd00
 	rts