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Fastest way to test
Score: 146.92 %,
Type: Forum topic , Comments: 6 comments
Hi, what is the fastest way to test if after a logical bitwise operator the accumulator contains 255?
Like this
Ld a, 127
Or 128
Instead of cp 255 then jp or Jr what I could do?
inc a and jr z,... inc a and jr z,...
...
Bios int handling
Score: 146.75 %,
Type: Forum topic , Comments: 15 comments
that there is a chance that the built in vdp could be lost because of the stupid autoreset feature of status reg 0
Do ... INT routine calls the Hook H.KEYI (0FD9AH) then reads the current status VDP register (must be 0 when an interruption occurs) and calls H.TIMI (0FD9FH) if the bit 7 is set.
https://www.msx.org/wiki/System_hooks ...
help with SDCC and msx dos target
Score: 146.75 %,
Type: Forum topic , Comments: 17 comments
hi, all. time ago i've found this http://msx.atlantes.org/index_en ... a MSX-DOS library for SDCC.
https://www.msx.org/news/development/en/fusion-c-is-available
Free ...
https://github.com/mvac7?tab=repositories
http://msx.avelinoherrera.com http://msx.avelinoherrera.com/index_en ...
After the war fps
Score: 146.65 %,
Type: Forum topic , Comments: 0 comments
Hi
Looking at after the war in both zx and msx version I didn't notice an appreciable difference in speed
This make me think that the real cause in slow down when porting zx to msx games in not as a lot of people say the vdp port bottleneck ...
Partial 2/3 scrolling
Score: 146.52 %,
Type: Forum topic , Comments: 15 comments
in XSpelunker https://www.youtube.com/watch?v=OaTt0T8O0N0
So? What is the point of this So? ...
