Echo2SIO.asm

Language: 8080 Assembly
Last Modified: 2022-11-14 1:22:03 AM UTC
File Size: 597 bytes

http://www.penguinstew.ca/example/AltairSerialEcho/Echo2SIO.asm

;Read2SIOstatusregister

ORG0000H

MVIA03H;0000:3E03

OUT10H;0002:D310Rest2SIOport

MVIA15H;0004:3E15

OUT10H;0006:D310Set2SIOportto8n1

LOOP:IN10H;0008:DB10Readstatusregister

RRC;000A:0F

JNCLOOP;000B:D20800Loopuntildatareceived

IN11H;000E:DB11

OUT11H;0010:D311

JMPLOOP;0012:C30800Loop