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Fill memory with 16 bits value
Score: 175.55 %,
Type: Forum topic , Comments: 16 comments
a,FastLDIR_Loop & 0xFF
ld l,a
ld a,0
adc a,FastLDIR_Loop >> 8
ld h,a
ex (sp),hl ... value.
ld hl,0c001h ; HL = Destination address + 1
ld (hl),040h ; MSB 8bits of the value
dec hl
ld (hl),0 ; LSB 8bits of the value
ld de,0c002h
ld bc,00500h ; BC = Length -2
ldir Thanks ...
Displaying text in graphical mode
Score: 175.54 %,
Type: Forum topic , Comments: 2 comments
Greetings!
In Q(uick)Basic, LOCATE displays text in any screen modes. But in MSX1 on SCREEN 2 the text is not visible...
Is it possible to display text in graphics modes?
Possible. You should use Possible. You should use special ...
I'm making a game (Tetpuz)
Score: 175.43 %,
Type: Forum topic , Comments: 10 comments
I might be crazy but I've always loved the idea of making a serious game for MSX ever since I dabbed in BASIC on it when I was 13-15. I feel the time is right now. It's time to really learn the MSX and it will be interesting to see what I can ...
Resurrecting my old game code
Score: 175.33 %,
Type: Forum topic , Comments: 13 comments
seems I display it using DEFUSR=&HDD20:A=USR(0)
The same goes with file #3 which also ...
Quote:
5 SCREEN 0:WIDTH80
10 REM LECTURE DU HEADER CASSETTE
20 REM (C) DANIEL MARTIN 1985
30 ...
110 NEXT I
120 DEFUSR=&H9100
130 DATA F3,0E,D0,CD,E9,72,06,0A,CD,D4,72,B9,20
140 DATA ...
MO5.com is making a MSX game
Score: 175.36 %,
Type: Forum topic , Comments: 4 comments
Hi,
MO5.com is an important French association that takes care of the preservation of the videogame heritage. They recover a lot of old software and hardware, repair them, store them and make exhibitions, especially with museums.
They also try ...
Is there a way to get Program Counter (PC) on Z80?
Score: 175.17 %,
Type: Forum topic , Comments: 8 comments
and has some part like this:
if content of some address != 0 then call it, if not continue.
As ... in a fixed memory location:
somewhere_hook:
jp 0x0000
Somewhere_hook is a fixed location and followed ... instructions `pop hl : jp (hl)` to VRAM at fixed address like 0x4000, and `call 0x4000` will load HL ...
SC bitmap file format header?
Score: 175.11 %,
Type: Forum topic , Comments: 8 comments
What I have found is that are 7 bits, but not the content. Has someone the content of the header for SC bitmap files?
Also, the BLTVD subROM function, expects only NX and NY, or the full SC header? For descriptions I have found, it only says that NX ...
Is chatGPT a good coder?
Score: 174.94 %,
Type: Forum topic , Comments: 2 comments
It replied
di ; disable interrupts
ld a, (ix+0) ; load value from memory into the accumulator
add a, a ; multiply the accumulator by 2
ld (ix+0), a ; store the result back ...
Question about v9990 coding
Score: 174.93 %,
Type: Forum topic , Comments: 14 comments
.Quig_BMXL_32:db #e0 ;SA bits 0-7
.Quig_BMXL_33:db 0 ;SA NA
.Quig_BMXL_34:db #1 ;SA bits 8-15
.Quig_BMXL_35:db #6 ;SA bits 16-18
.Quig_BMXL_36:db 0 ;DX bits 0-7
.Quig_BMXL_37:db 0 ;DX bits 8-10
.Quig_BMXL_38:db #80 ;DY bits 0-7
.Quig_BMXL_39:db #f ;DY bits 8-11
.Quig_BMXL_40:db #8 ;NX bits 0 ...
How much exact time consumes a DOS2 inter-segment call?
Score: 174.63 %,
Type: Forum topic , Comments: 2 comments
Hi, as title says, someone knows the exact extra time/instruction/cycles used by doing a DOS2 inter-segment call compared to a direct call?
If you really want to know If you really want to know that kind of details, see ...
