INTL 3:770/1 3:770/3
REPLYADDR brain@jbrain.com
REPLYTO 3:770/3.0 UUCP
MSGID:  57a049f9
REPLY: <20211125-235704.195.0@George.ssl-us.astraweb.com> fc1d9b5a
PID: SoupGate-Win32 v1.05
On 11/25/2021 5:57 PM, George wrote:
> Just to bring this to a conclusion, I've written alternative IRQ servicing
> code that bypasses the "BEQ" error in rom, and a BASIC program that
> installs the new code into the tape buffer.  It's 120 bytes of ML that does
> the ACIA processing and then jumps back into ROM for the rest of the IRQ
> routine.  The BASIC program and the source code for the ML portion are
> shown below. The actual .PRG file can be downloaded from my Github CBM
> repo:
>
> https://github.com/gbhug5a/My_CBM_stuff
>
> Since I no longer have a +4, I have no way to test the new code.

Do you have the VICE emulator?  It supports the +4 and the built in
6551, and can tie that 6551 ACIA to a real or virtual serial port.  You
could test it there if desired.

Jim
--- SoupGate-Win32 v1.05
 * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)
SEEN-BY: 1/123 14/0 18/200 90/1 103/705 105/81 120/340 123/131 129/305
SEEN-BY: 153/250 757 154/10 218/700 840 220/70 221/1 6 226/17 30 227/114
SEEN-BY: 229/424 426 428 664 700 240/1120 5832 249/1 206 317 400 261/38
SEEN-BY: 267/800 282/1038 301/1 113 317/3 322/757 335/364 340/1000
SEEN-BY: 341/66 342/200 633/280 712/848 770/1 3 100 340 772/210 220
SEEN-BY: 772/230 920/1 4500/1 5058/104
PATH: 770/3 1 218/840 221/6 301/1 229/426