Sharp MZ

I guess you wrap it with DI : ... : EI to delete any interrupt? No, I did not. Tried this now but it did not make a difference. Emulator: I'm not expecting the emulator to run each instruction at an accurate 3.57 MHz frequency. An emulator tends to run a batch of instructions then pause to make the...

Btw I "solved" this problem by not using this timer at all, I count how many times I can increment a variable between two VBL's. Not the most elegant solution but it's working.

I'll try to remember that :) Did some more test and got things "working" on real hardware. "Working" as in "something happens". I don't understand the results. The crude test code looks like this: vbl(); *((unsigned char *)0xe007) = 0x74; *((unsigned char *)0xe005) = 0x00; *((unsigned char *)0xe005)...

UncleBod wrote: ↑

Fri Oct 25, 2019 6:27 am

I am more interested in the label on the prom.

The swedish character ROM is an EPROM with a blank sticker over the window.

Only 0xffff.

Software: 8253.CLK1 = /BLNK. Between two fall-edge /VSYNC count how many /BLNK occurs (reading CNT1 before and after and compute delta for instance). It should give the number of lines which should reflect a PAL or NTSC number of lines. Just tested this, and while it worked fine (sort of) in the em...

Very nice!

fitus wrote: ↑

Sat Nov 02, 2019 4:07 pm

Are there any other projects in Z88DK for MZ 700/800?

I have started on another game for the 700, also written in C using z88dk.

fitus wrote: ↑

Sat Oct 26, 2019 5:24 pm

Any progress? Looks very very nice!!

Yes, the game is basically finished. I have just one small detail left but has been occupied with other things lately.

By analyzing Swedish characters, I realized that there were duplicate characters (pink color) and poorly copied characters (in red) compared to Western originals (attached image). The duplicate characters are there to avoid patching software. Take a look at my Swedish keyboard and you'll see what I...