Sharp MZ

MZ-80 K should be simpler. There is no LSI. With the service manual, it should be okay to implement it.

Basically, my game using the HALT/INT/BLNK is SpaceRally. It is not finished and in pause for a long time. There were many attempts to have better sound using different ways to encode sound than just a sequence of mono-volume frequencies à la MUSIC. I seem I have a version I kept in binary. Understa...

The clock source for i8253 channel #1 is BLNK. It may not sound like but it is important that channel #1 is synchronized with BLNK because some effects may depend upon it: one of my games is using that timer to output a sound just after BLNK goes 0. HALT ; wait for BLNK goes to 0 and call INT output...

BLKN -> should be BLNK I guess vram_enabled <- I suspect it is for INH1 which inhibits DRAM ($D000-$FFFF) for VRAM ($D000-$DFFF), IO memory ($E000-$E00F), QD ($E800-$EFFF), FD ($F000-$FFFF), which is more than enabling VRAM access. rom_enabled -> INH0 which inhibits DRAM ($0000-$3FFF) for MROM at th...

const HBLK_HIGH_PERIOD: u64 = 36088; <--- Period in which unit?

I use z80asm from Youkan that I modified so it displays messages in English by default and not all messages had a translation so I added them. The HTML file is still in Japanese but using Google or DeepL translation should help here. I also use a simple .bat file to build. To build a .mzt file from ...

Totally feasable, I did it: https://github.com/SHARPENTIERS/MZ-SD2CMT

You should indicate "[MZ-80 A]" or "[MZ-700]" as a prefix to your game title so we know which machine they are for.

I won't be so affirmative: http://retropc.net/ohishi/museum/SvsHu_700.htm

With a 3D resin printer, it could be finer?