Search results
VRAM to VRAM copy on Screen 2
Score: 87.86 %,
Type: Forum topic , Comments: 21 comments
Let's calculate
60 Hz ~ 16.6 milliseconds per cycle
One Z80 clock cycle at 3.579545 MHz ~ 279 ... can see that you can't use Z80 to do operation requiring 41.2 ms in time of 16.6 ms.
Now ...
I have a dream (as game dev)
Score: 126.62 %,
Type: Forum topic , Comments: 9 comments
this device should analyze the current Z80 command which comes from flash, execute it, generate DI ...
Proof of Concept - Soccer game
Score: 123.62 %,
Type: Forum topic , Comments: 16 comments
tools to profile MSX program?
Sometime ago I read something about undocumented Z80 instruction ...
ROM starting in page 0 or 3?
Score: 133.18 %,
Type: Forum topic , Comments: 18 comments
that you are able to put your ROM anywhere in the Z80 address space you like.
Roms headers can ... a previous post on the same matter:
I would advice against using the Z80 register values, as those ...
WYZ music file format
Score: 134.54 %,
Type: Forum topic , Comments: 12 comments
for example. It allows to put a music anywhere in the memory space of the Z80 and to play the music by giving ...
SDCC 4.1.12, a Game changer for C programming?
Score: 137.52 %,
Type: Forum topic , Comments: 33 comments
Hi all,
The SDCC team, and especially Philipp Klaus Krause (a Z80 guru), has bring ... to be passed through the Z80 registers rather than through the stack, which is far much faster.
To make ... of parameter combinations handled natively via the Z80 registers according to the calling conventions: ...
Simultaneous vblank and hblank interruption?
Score: 147.99 %,
Type: Forum topic , Comments: 11 comments
the interrupt request remains active as long as the CPU has not acknowledged it.
So the Z80 will treat ... this function.
Since the V9938 doesn't monitor Z80 instruction fetches it can't clear the IRQ automatically and it has to be manually cleared.
In a mixed Z80 system where you have both peripherals ...
Program's UID
Score: 139.52 %,
Type: Forum topic , Comments: 14 comments
Bridgedrome and QBIQS (Z80ST), Gommy Medieval Defender (Retroworks) and Relevo's Snowboarding (Relevo) ...
SDCC
Score: 125.04 %,
Type: wiki , Comments: 0 comments
SDCC SDCC is a optimizing Standard C (ANSI C89, ISO C99, ISO C11) compiler suite that targets Zilog Z80 (among others MCUs).
It is composed of many tools including C compiler (based on GCC), assembler and linker (based on asxxxx).
Homepage: http://sdcc.sourceforge.net/
Standard library ...
MSXgl – A new C game library for MSX
Score: 447.68 %,
Type: Forum topic , Comments: 230 comments
of self-tests so it seems quite safe.
I trusted Philipp Klaus Krause, one of the main contributors to the z80 ... think it was compatible with the Z80. But indeed, there is some information that appeared in the Z80 ...
Quote:
4.3.9 Z80 banked calls
Banked calls are supported via __banked. Banked calls are done ...
