dzzr@beta.UUCP (Douglas J Roberts) (05/27/87)
Since I've been pestering this group recently for help, I thought that I'd share the solution now that I've found it. The parallel port driver was sending garbage to my printer, so after I located the problem I modified the Horizon user area and patched it in. For those of you interested, here is the offending code and the fix. COUT2: ;Parallel port output. IN 6 ;Motherboard status ANI 1 JZ COUT2 MVI A,20H ;Reset PO flag OUT 6 ;Output char MOV A,C ;Load accumulator TIN1: ORI 80H ;Set strove false <-- REMOVE THIS LINE!!! OUT 0 ;and send character XRI 80H ;Toggle strobe OUT 0 ;Output XRI 80H ;and toggle again OUT 0 ANI 7FH ;Mask to ASCII RET The indicated line was setting the high bit on each character, effectively putting my Epson MX-80 into graphics mode. Thanks again for all the help! --Doug