From c6eee95a5524a0e6022d8a4476cb6c2000f11475 Mon Sep 17 00:00:00 2001 From: Wayne Warthen Date: Mon, 20 Apr 2020 14:14:56 -0700 Subject: [PATCH] Update acia.asm Updated ACIA detection to use primary ACIA port instead of phantom port. --- Source/HBIOS/acia.asm | 7 ------- 1 file changed, 7 deletions(-) diff --git a/Source/HBIOS/acia.asm b/Source/HBIOS/acia.asm index f4f95b45..9adeb985 100644 --- a/Source/HBIOS/acia.asm +++ b/Source/HBIOS/acia.asm @@ -576,15 +576,8 @@ ACIA_DEVICE: ; ; ACIA DETECTION ROUTINE ; -; NOTE THAT THE ACIA MODULES ONLY QUALIFY ADDRESS BITS 7 & 6, SO -; THE ACIA'S TWO PORTS APPEAR REPEATEDLY OVER AN ADDRESS RANGE -; OF $40 STARTING FROM THE REAL BASE PORT. -; WE TAKE ADVANTAGE OF THIS TO AVOID CONFLICTING WITH SIO -; AND COMPACT FLASH MODULES DURING DETECTION PROBES. -; ACIA_DETECT: LD A,(IY+3) ; BASE PORT ADDRESS - ADD A,$18 ; OFFSET (SEE ABOVE) LD C,A ; PUT IN C FOR I/O CALL ACIA_DETECT2 ; CHECK IT JR Z,ACIA_DETECT1 ; FOUND IT, RECORD IT