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action games timing
Score: 104.31 %,
Type: Forum topic , Comments: 12 comments
between them seems quite random and unpredictable. Making poor Z80 to wait is also something that you ... MSX by having the Z80 and VDP perform operations in parallel).
Grauw says:
"This issue only ...
Acid2Test help
Score: 119.88 %,
Type: Forum topic , Comments: 18 comments
correcly regardless of the CPU speed (Z80, R800, Z80 turbo etc) and even on the MSX-Audio BIOS v1.3. ... not do the test that you say since after securing Z80 and 60 Hz, I connect page 0 of ram, to put ... http://www.z80st.es/downloads/code/ ). But I guess they are not as robust as for passing the Acid2Test :)
But @sd_snatcher, I ...
Accurate logging of port input / output in openMSX
Score: 107.88 %,
Type: Forum topic , Comments: 17 comments
"R800-patch" delays accurately (running the Z80 version first, logging the timing, then launching the R800 ... really picky here when using the printer/TADA output. My plan is first have a log of existing Z80 timings ... down in Z80 mode).
MIDI transfer must be done at 3.125KBauds, and only accept a 1% difference ...
accessing the diskrom directly
Score: 94.18 %,
Type: Forum topic , Comments: 18 comments
;
; shutdown.mac
;
; moter off Subroutine
;
.z80
entry @_SHUTDOWN
;
rdslt equ 000ch
calslt equ ...
Accessing tables with Z80 ASM
Score: 1164.91 %,
Type: Forum topic , Comments: 29 comments
Hi again guys.
I'm still learning Z80 ASM, so I've been looking at some sample ... that the Z80 lacks an efficient way to load information from them.
All codes I've seen that use tables ... dead slow.
Doesn't the Z80 have a couple of index registers? I didn't find much info ...
Accessing output pins in joystick ports
Score: 90 %,
Type: Forum topic , Comments: 8 comments
rdser,wrser
.z80
;****************************************
PSG_A equ 0a0h ;reg address
PSG_W equ 0a1h ...
Accelerator cards
Score: 151.49 %,
Type: Forum topic , Comments: 13 comments
with (very) fast CPU, 128Mbyte of memory, 24bit video, LAN, etc...
But I have no idea if there is a Z80 ...
https://www.msx.org/forum/msx-talk/hardware/mclz8-project-fast-z80-replacement
It's also the question why It's also the question why you'd want that. ...
accelerating the 'DIR' command in msxdos.
Score: 80.71 %,
Type: Forum topic , Comments: 2 comments
this also means that the Z80 code of the DIR command is not very optimized. I wouldn't be surprised ...
About VDP command operation code = 0
Score: 85.57 %,
Type: Forum topic , Comments: 52 comments
@horthgar: the time for a logical 16x16 copy is long enough to waste z80 time.
time ago i've realized ... commands, in high speed. Even in the worst case, the z80 had to wait between two consecutive tile copy ...
About msx Floppy Disk - Low level access?
Score: 82.88 %,
Type: Forum topic , Comments: 30 comments
on the other. As soon as the z80 send data to the emulated port, the PC send back a response or data through ... about the electronic of 20 years ago. I can also code in z80 mc.
Let me know at spambin dot AT ...
