romych/OK240.2-Firmware
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OK240.2-Firmware/MON_r8_9c6c6546/README.md

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Ocean-240.2 ROM Monitor V8 checksum 9c6c6546

Source codes of Monitor v8 for Ocean-240.2 with Floppy controller. In Z80 mnemonics, but limited for i8080 instruction set.

Differences

  1. Font. Other russian letters б and д;
  2. Calculate values for extended ram access in procedures m_ramdisk_read, m_ramdisk_write.
  3. Don't reset hi bit when read keyboard
  4. Other params count at last esc commands

Compile

Code is located in memory at address: 0xE000..0xFFFF

sjasmplus --sld=monitor.sld --sym=monitor.labels --raw=monitor.obj --fullpath monitor.asm

To compile sources, use sjasmplus Z80 assembler.