Sharp MZ

Yeah, without looking at the code, I'm pretty sure you use 112 pixels per line, but instead displaying a rectangle, you shift the X character start position X at each pixel line Y. ;P

/SYN | /HSY | /VSYNC | /HSYNC | /CSYNC -------+--------+--------+--------+-------- 0 | 0 | 0 | 0 | 1 0 | 1 | 0 | 1 | 0 1 | 0 | 1 | 0 | 0 1 | 1 | 1 | 1 | 1 That looks correct: either /SYN or /HSY must be low to get /CSYNC low. If both is low, then /CSYnc must be high so the TV can still detect their...

Argh... you're right. For some reason, I thought my SCART cable was using CVIDEO but I checked again the connection and it is /CSYNC indeed as it makes more sense here. What annoys me is the difference between CVIDEO and /CSYNC as I would expect/CSYNC be mixed in CVIDEO. But the schematics says /CSY...

Oh, I could use VSYNC/HSYNC/CSYNC to connect the RGB SELECTOR (FAST BLANK)... But I recall Atari using HSYNC or VSYNC to do so makes some glitches on modern TV.

If I recall well, I cannot use the MZ-700 CSYNC for SCART VIDEO. I had to use CVIDEO. That's because I use an Amiga DB23-to-SCART cable and CVIDEO is connected to SCART pin #20 (composite video). If I want to use CSYNC, to which SCART pin it should be connected? For MZ-800, what is your opinion abou...

That's awesome! I wonder how it performs compared to an Unicard. Some questions: 1) It looks like the CPU is soldered. I certainly would prefer a low-profile "socket" (I have special pins for that). Especially I have some KL5C8400 CPUs which need a PCB+GAL to make it possible to replace a ...

Just one wild suggestion. You have two keys (one on the left of your "missing" key, the other on the right) which have the symbols you need if you could: 1) scan the label of those keys with a high DPI 2) open an editor and load the image 3) select the square with curved and apply "FL...

@Jo, if you're not interested in keeping QD drive (and its interface board), drop me a PM.

If I program the counter #2 as a byte counter, it works fine when I read $E006: LD HL,$E006 LD C,(HL) If I program the counter #2 as a 16-bit word counter, it doesn't work when I try to read the lower byte first then the upper byte. LD HL,$E006 LD C,(HL) LD B,(HL) A note mentions: The 8253 provides ...