I am writing the procedure for porting a CP/M-80 to a SORD M68. What you need CP/M2.2 source code (available at The Unofficial CP/M Web site) CP/M2.2 binary (available at The Unofficial CP/M Web site) ZASM.EXE (Absolute assembler that runs…

I ported CP/M80 to SORD M68. the Z80SIO I/O address and FDC(MB8877A) read/write processing code also worked so I can write BIOS. The following is a memo description of the problems I had. Blocking/de-blocking process The CP/M80 sets the ca…

SORD M68にCP/M-80を移植する手順を書いておきます。 必要なもの CP/M2.2のソースコード(The Unofficial CP/M Web siteにあります) CP/M2.2のバイナリ(The Unofficial CP/M Web siteにあります) ZASM.EXE(MSDOSで動くアブソリュートアセンブラです。VECTORに…