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When would you use LD A,R ?Can anyone tell me a practical use of LD A,R and LD R,A I am confused when you would need to use it? Cheers
... /blob/master/examples/divide_firmware/page_0_hooks.asm]my NMI code for Gasware ... -
Speccy games programmingI've got a question. Where games written in pure machine code or was it a level higher with Assembly language being the choice? I always thought it…
... 's quite painful to write asm on the same machine as ... you have to reload the asm, reload what you've just ... -
Speccy games programmingI've got a question. Where games written in pure machine code or was it a level higher with Assembly language being the choice? I always thought it…
... bit steep.
but asm is the direct way to ... kinda forced you to learn ASM.. but the BBC micro.. I ... -
Moderation gone wrongWhat would happen if one deleted the entire Chit Chat forum? Ask the overzealous moderators at [URL="http://www.lemon64.com/forum/"]Lemon[/URL]. :raz…
... (joking aside my friend learned ASM on that, became very good ... -
Sprites...What is fastest way for drawing masked sprites at any screen position without using preshifted data ? I want to use it for isometric view game... li…
... /sp1/spectrum/sprites/draw/SP1_DRAW_MASK2.asm?revision=1.1&view ... -
Tatung Einstein for developmentI know some developers used a [URL="http://old-school-micro.blogspot.com/2009/11/retro-computers-tatung-einstein-retro.html"]Tatung Einstein[/URL] to…
... statements and convert it to ASM when they did zx81. I ... -
Reading the Spectrum KeyboardI've been playing around with reading the Spectrum keyboard (in the guise of Spin 0.666) using Z80, and I believe I've discovered that the number of …
... is available in TZX, Z80, ASM formats. It outputs what the ... -
how crap...Its very annoying to see c=/zx/amiga/etc emulators on ebay.. but today I found this: [URL="http://cgi.ebay.co.uk/CP-M-Plus-Start-Up-Disk-For-ZX-Spe…
... know 128 specfic things like ASM regarding to controlling the drive ... -
AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…
... a compatible file. A z80 asm player is provided to play ... -
Memory concerns with z88dkI've retaken my old spectrum project and sadly I've reached a dead end very fast. I'll try to explain my worst problem in a few lines. I'm not a vet…
... ]void testqwertyiop(void)
{
#asm
dec e
// dec ... seem to be related to asm inline, as the following code ... -
Memory concerns with z88dkI've retaken my old spectrum project and sadly I've reached a dead end very fast. I'll try to explain my worst problem in a few lines. I'm not a vet…
... testqwertyiop(void)
{
#asm
dec e
// ... mind that anything enclosed in #asm / #endasm is passed directly ... are then translated into asm with references to data ... c file still represented with asm labels. External references might ... -
Memory concerns with z88dkI've retaken my old spectrum project and sadly I've reached a dead end very fast. I'll try to explain my worst problem in a few lines. I'm not a vet…
... by editing the customize.asm file in z88dk/ ... my_isr(void)
{
#asm
push af< ... br /> {
...
#asm
di ; make sure no ... my_isr()
#asm
ei
#endasm ... -
Commodore 1541 disk Drive.I cannot find the original thread I said this in before so I'll start a new one. I am thinking of getting a commodore 1541 Disk drive for my old br…
... />
if you did any ASM on the speccy and wanted ... -
Memory concerns with z88dkI've retaken my old spectrum project and sadly I've reached a dead end very fast. I'll try to explain my worst problem in a few lines. I'm not a vet…
... /> void my_isr(void)
{
#asm
push af
The XREF in the asm code segment above is only ... -
New game - All Present and CorrectNew game available from my site or the link below, quickly beaten together with help from Mister Beep, Fikee, Graz & Andrew Owen. [URL="http://www.b…
... you do it all in asm?
Looking forward very ... -
New game - All Present and CorrectNew game available from my site or the link below, quickly beaten together with help from Mister Beep, Fikee, Graz & Andrew Owen. [URL="http://www.b…
... you do it all in asm?[/QUOTE]
All written ... -
Cis this a valid instruction? [code] A + B; [/code] If I assign 3 to A and 2 to B; and then "A + B;", then A should equal 5, and B equal 2. Correct?
... code will translate into an asm add/sub/whatever and a ... will occur, just as in asm.
There are cpus ... -
Z80 assemblerIf I do this [code] LD BC, 0002h [/code] is B=0 and C=2, or the other way around? does it disassemble to 01 00 02 does it disassemble to 01 02 00
Z80 assemblerIf I do this [code] LD BC, 0002h [/code] is B=0 and C=2, or the other way around? does it disassemble to 01 00 02 does it disassemble to 01 02 00
Skool disassemblies onlineThe Skool Daze and Back to Skool disassemblies (previously announced in too many places on this forum) are now browsable online: [url]http://pyskool…
... .
If plain-text ASM files of the skool games ...Skool disassemblies onlineThe Skool Daze and Back to Skool disassemblies (previously announced in too many places on this forum) are now browsable online: [url]http://pyskool…
... .
If plain-text ASM files of the skool games ...What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…
... in decimal while writing in asm, try to think in hex ...What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…
But I also see this in z80asm's changelog:
"* in asm.c: @ is a special 'label' indicating the current PC"What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…
... in decimal while writing in asm, try to think in hex ...
