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Scroll 1px problem, need your help
Score: 190.63 %,
Type: Forum topic , Comments: 8 comments
on the scroll direction. When going right, a new map is needed between +0 and +7. When going left, it's between +7 and +0. So I bluntly tested loading a new map at each step, but the problem is still there: ... on the scroll direction. When going right, a new map is needed between +0 and +7. When going left, it's ...
Switching RAM in page 2 from a ROM
Score: 189.45 %,
Type: Forum topic , Comments: 15 comments
on page 0, you can use the ENASLT routine (0024h).
In pseudo code, it would look like this:
A = ... Expanded slot (0 = no, 1 = yes)
To my knowledge, there is no BIOS routine to directly retrieve the ID ... ; Mask only needed for page 0
sub = (SLTTBL + 2) ; Should be 0 is slot not extended
slotId = prim | ...
OpenMSX debugger problem
Score: 186.72 %,
Type: Forum topic , Comments: 3 comments
Hi everyone,
Please tell me what I'm doing wrong, because OpenMSX debugger works almost never works when I want to put a breakpoint:
1) I launch OpenMSX catapult
2) I launch OpenMSX debugger
3) I start a rom
4) I connect the debugger to ...
Switching RAM in page 0 on MSX2
Score: 183.76 %,
Type: Forum topic , Comments: 27 comments
snippet of code to do it !
I want to switch RAM in page 0 on an MSX2 (from a megarom with an ASCII ...
Everything happens in INSTALL_RAM_ISR macro with setting page 0 to the same slot as page 3 (the slot ... in INSTALL_RAM_ISR macro with setting page 0 to the same slot as page 3 (the slot with the most RAM found ...
Can we use the 'i' register ?
Score: 183.05 %,
Type: Forum topic , Comments: 12 comments
Hi everyone,
I am curious: when the Z80 is in interruption modes 0 or 1, the 'i' ... OS got an IM2 interrupt server in page 3, so one can flip the slot in page 0 freely. And then the i ... an IM2 interrupt server in page 3, so one can flip the slot in page 0 freely. And then the i register ...
System variables (again!)
Score: 182.88 %,
Type: Forum topic , Comments: 33 comments
Usually BUF (0F55Eh) and KBUF (0F41Fh) must be temporary used only because some routines (the BIOS ... page. (0XFCC5/8). Speaking of slot selection, 0xFFFF (-1) is used for sec.slot selection. But, if yer ... perhaps a I Have a question, perhaps a little out of subject but...
It seems the Work Area (0 ...
v9990 interrupt handler
Score: 183.48 %,
Type: Forum topic , Comments: 8 comments
VBLANK or HBLANK ?
in a,(v9990.interrupt)
bit 0,a
jp nz,.vblank
bit 1,a
jp nz,.hblank
ret
.vblank ... rosy after all ...
I disabled completely the standard VDP in my code (by writing 0 in R#0 and R#1) ... a matter of disabling the H_TIMI hook, which was somehow messing with my interruption, because the S#0 ...
Turbo-R and out(c),0
Score: 182.46 %,
Type: Forum topic , Comments: 9 comments
Hi everyone,
To make things clear : out(c),0 does not work on the R800, but does work ... Z80 it's OUT (C),255 instead of OUT (C),0 on TTL Z80. I will try to test it soon and also ... with the program below and the color 4 becomes white only in Z80 mode.
; OUT (C),0 test
org 0D000h-7
db ...
Sjasm: output text during assembly
Score: 182 %,
Type: Forum topic , Comments: 2 comments
https://github.com/Konamiman/Sjasm/blob/v0.42/Sjasm/directiv...
On another note, I would recommend using a different assembler, as I do not think sjasm ...
ZX0 data compressor
Score: 175.92 %,
Type: Forum topic , Comments: 30 comments
a lot of space using it, and I would recommend ZX0 ( https://github.com/einar-saukas/ZX0 ), which ... was highly interested and wanted to give it a try.
But when executing the zx0.exe file, the windows ... now:
https://github.com/einar-saukas/ZX0/blob/main/win/zx0.exe
Thanks, but it still does ...
