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MSX1 benchmark & speed differences
Score: 142.55 %,
Type: Forum topic , Comments: 12 comments
often compared to emulated machines. ie. Philips machines seem to report a bit slower Z80 clock speed. ... to differ quite often compared to emulated machines. ie. Philips machines seem to report a bit slower Z80 ...
Forth
Score: 148.48 %,
Type: wiki , Comments: 0 comments
FORTH-Enviroments especially for MSX:
Kuma Forth
NhForth japanese
Z80-Forth
Manuals
FORTH ...
Screen 4 - vram usage
Score: 140.97 %,
Type: Forum topic , Comments: 102 comments
17-16-15th bit is stored in a z80 RAM location called ACPAGE, setting the vram ptr.
then a simple out ... effectively there is a "logical" view of memory consisting of contigous addresses (from the z80 ... for the vdp that a double floating point IEEE value has for the z80 or 6510 or 8086 (they are only bytes). ...
Samurai Shodown unplayble demo on MSX+V9990
Score: 148.61 %,
Type: Forum topic , Comments: 59 comments
for 9938/58? V9990 is a different story?
Also I thought the R800 is slower than the Z80 on VRAM operations. OUTI is 18 cycles on Z80 vs 27 (?) cycles on R800. Am I wrong about this?
On V9938 / 58 you can do ...
it speeds up the z80 up to x6 (21.48Mhz), (alt+tab) although the r800 would be more of an x8 over the z80 ...
Repairing my poor NMS 800
Score: 164.3 %,
Type: Forum topic , Comments: 2 comments
on the nms800 board picture for the z80. Only the VDP. So how is the z80 clock generated? Looks like the Z80 ... for the z80. Only the VDP. So how is the z80 clock generated?
It's got a x-tal, it's right ...
Looks like the Z80 is running too fast, but could also be a ram/vram issue. You need an oscilloscope ...
Looking for an assembler coding buddy
Score: 142.69 %,
Type: Forum topic , Comments: 18 comments
Someone who speaks Z80 assembler fluently and knows the V9938 / V9958 like the back of their hand. ...
MSX Music Player using R800
Score: 148.33 %,
Type: Forum topic , Comments: 5 comments
writing the registers. These are 4T in Z80 and 1T in R800. Maybe I'll do eight ex af,af' ...
JVC HC-7E
Score: 131.93 %,
Type: wiki , Comments: 0 comments
The HC-7E is an MSX1 with a Z80A processor from Sharp (LH0080A) at 3.58 MHz.
Hardware details
CPU: Sharp LH0080A Z80A-CPU-D
RAM: 8 x TMM4164AP-15 DRAM
Video: Texas Instruments TMS9929A
VRAM: 8 x ...
Nabu PC, an 80's computer very similar to MSX
Score: 149.1 %,
Type: Forum topic , Comments: 27 comments
Yes. The MSX Z80 source was supplied by Konami. Sadly, because ASCII was the only encoding available back then, which is pure english, the hundreds of pages of Z80 assembler source code had about 15 ... to do with the WAIT state ? If the Nabu's Z80 does not use WAIT state, then all instructions ...
A2Z80Plus card
Score: 1200.94 %,
Type: wiki , Comments: 0 comments
Mapper (Memory Mapper, Konami and ASCII 8K/16k ROM Mapper)
Z80 with customisable clock speed (3.58Mhz, ... A2Z80Plus card
Description
The A2Z80Plus card is a compatible PCPI Appli-card made by Ian ... such as the ability to save MSX programs, or access the Z80's RAM from Apple mode. Listing on eBay confirms Apple ...
