-
Spin Assembler DirectivesLeading on from [URL="http://www.worldofspectrum.org/forums/showpost.php?p=402514&postcount=65"]jp's recent post in Spin 0.7 Public Testing thread[/U…
... /> (S: 'XL'; I: 160), (S: 'XOR'; I: 107),
(S: 'YH ... -
Spin Assembler DirectivesLeading on from [URL="http://www.worldofspectrum.org/forums/showpost.php?p=402514&postcount=65"]jp's recent post in Spin 0.7 Public Testing thread[/U…
... /> (S: 'XL'; I: 160), (S: 'XOR'; I: 107),
(S: 'YH ... -
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
... ) ; random ROM address
xor l
xor h ; some more randomness ... -
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…
... />
chregs:
xor a
ld (Ampl),a ... /> jp p,ch_ntp
xor a
ch_ntp:
... /> jp p,ch_apos
xor a
ch_apos:
xor a
ld hl,CurEDel ... CurESld),hl
rout:
xor a
rout_a0:
... -
More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.
Sinclair ZXC3 FLASH ROM CartridgeI recently received mail about the new ZXC3 PCB which provides the unique ability to program it directly from the Spectrum without the need for an EP…
... be used to save, load, erase, etc, and even many machine ...Everiss - A "highly respected person" ?It gets better..... [url]http://www.bruceongames.com/2009/12/13/high-drama-in-evony-llc-vs-bruce-everiss/[/url] Roughly - Ebony's lawyer (Dean Grou…
... I'll do first to erase lines of boxes. Once I ...Everiss - A "highly respected person" ?It gets better..... [url]http://www.bruceongames.com/2009/12/13/high-drama-in-evony-llc-vs-bruce-everiss/[/url] Roughly - Ebony's lawyer (Dean Grou…
... I'll do first to erase lines of boxes. Once I ...Everiss - A "highly respected person" ?It gets better..... [url]http://www.bruceongames.com/2009/12/13/high-drama-in-evony-llc-vs-bruce-everiss/[/url] Roughly - Ebony's lawyer (Dean Grou…
... I'll do first to erase lines of boxes. Once I ...Announcing: The +2A/+3 FLASH ROM adapter boardAs I've mentioned in a couple of other threads, this project is coming along quite well now, so I thought I'd post some details up here. I've built …
... required to start the FLASH erase cycle and have verified that ...Announcing: The +2A/+3 FLASH ROM adapter boardAs I've mentioned in a couple of other threads, this project is coming along quite well now, so I thought I'd post some details up here. I've built …
... all the stuff needed to erase sectors and write to the ...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…
... the accumulator. That is using XOR A - instead of LD A ... get the result zero. Again, XOR A takes 1 byte and ...Announcing: The +2A/+3 FLASH ROM adapter boardAs I've mentioned in a couple of other threads, this project is coming along quite well now, so I thought I'd post some details up here. I've built …
... an expensive UV lamp to erase) with an easily reprogrammable flash ...Announcing: The +2A/+3 FLASH ROM adapter boardAs I've mentioned in a couple of other threads, this project is coming along quite well now, so I thought I'd post some details up here. I've built …
... an expensive UV lamp to erase[/QUOTE]
A little ...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…
... to the screen
xor a
ld (5C3Ch),a ... kludy long loop?
xor a
ld (5C3Ch),a ... this..
[CODE]
xor a ;LET a=0
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…
... to the screen
xor a
ld (5C3Ch),a ... kludy long loop?
xor a
ld (5C3Ch),a ...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…
... LOTS OF TIMES
;
xor a
ld (5C3Ch),a ... example or [i]why[/i] XOR A is the same as ...Bit functions speedI just stared nonplussed at the documentation for the bit functions. Apparently, if you're using the accumulator, using AND and OR is faster than se…
BIT can be used with all registers where AND / OR / XOR only applies to A
So when using other registers you can save the value from A being disrupted.Double Dragon 128k - The graphicsAs you are all probably aware, I tried gathering a team of people together a few years back to make a totally re-programmed version of Double Dragon …
... right. the dark colors will erase player. what about really keeping ...My graphics card started playing up today.All of a sudden, flashing squares and other artefacts began appearing on my screen. It's an nVidia 6200LE, a fanless kind in a PCI-E slot. Well, I th…
... see"... my friend had to erase camera's that were going ...My graphics card started playing up today.All of a sudden, flashing squares and other artefacts began appearing on my screen. It's an nVidia 6200LE, a fanless kind in a PCI-E slot. Well, I th…
... see"... my friend had to erase camera's that were going ...Mass storage - why backup battery?I wasn't sure to post this under "hardware" or "development", but here goes: There are these mass storage devices for ZX Spectrum, and on many desig…
... that may be) into RAM, erase the entire sector, and write ... disadvantage of having to copy/erase sector/modify in RAM/write ... flash, and do the copy/erase/modify/write cycle against having ...Double Dragon 128k - The graphicsAs you are all probably aware, I tried gathering a team of people together a few years back to make a totally re-programmed version of Double Dragon …
... start of loop instead
; xor a ;EDITED: REMOVED - Actually placed ...
ld (viewport_y), a
xor a ;EDITED: Added (was previous ...
