-
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... call text_out
and
POP AF afterwards if you want ... it modifies on entry and pop them in reverse order before ...
AND A ; this sets flags but does not do anything ...
call sprite8x8a
pop bc
pop hl
inc hl ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... in a, can push af/pop af before and after if ... result, it just checks the flags.
See other examples ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... use an instruction that modifies flags in any way (sometimes you ... lookup instructions and see what flags they affect:
http ... affect the Z or C flags, watch out for that (so ... before you trash it and POP BC before DJNZ
; or ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... : Other alternatives to push and pop af
ex af ... pair does not set ANY flags. -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... is faster than push af pop af (4*2 T States ... . ex af, af' means the flags will be messed up though ... a function and it needs flags to be in certain states ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... beginners just use the push/pop method.
Carry/Zero ... learning to mess about with flags (yes I know that it ... -
Robospec (new project, hopefully useful as a tutorial as well)Starting a new project after my graphics investigations. * It's gonna be a Robotron clone since that's not too ambitious (although I'd like to hav…
... as cp 0 and clears flags
jr nz, .needtoshift
add c
pop bc
ld l, a ... c
add c
pop bc
ld l, a ... c
add c
pop bc
ld l, a ... c
add c
pop bc
ld l, a ... -
Robospec (new project, hopefully useful as a tutorial as well)Starting a new project after my graphics investigations. * It's gonna be a Robotron clone since that's not too ambitious (although I'd like to hav…
... as cp 0 and clears flags
jr nz, .needtoshift
add c
pop bc
ld l, a ... c
add c
pop bc
ld l, a ... c
add c
pop bc
ld l, a ... c
add c
pop bc
ld l, a ... -
Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... bc, 32
ldir
pop bc
ENDM
ldir
pop bc
ENDM
ldir
pop bc
ENDM
ldir
pop bc
ENDM
Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... bc, 32
ldir
pop bc
ENDM
ldir
pop bc
ENDM
ldir
pop bc
ENDM
ldir
pop bc
ENDM
Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... DE
pop hl ; pop symbol name
pop hl ; ... call putc
pop de
pop hl
call print_list_loop ... /> call putc
pop de
pop hl
jp print_list_loop ... br /> .endoflist
pop hl ; pop start of list
...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... bc, 32
ldir
pop bc
ENDM
ldir
pop bc
ENDM
call cpair_setlinkptr ; (2 3)
pop hl ; address of (2 3 ... : 4 address in DE
pop hl ; cpair
call cpair_setlinkptr ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... bc, 32
ldir
pop bc
ENDM
< ... /> ldir
ENDIF
pop bc
ENDM
call cpair_setlinkptr ; (2 3)
pop hl ; address of (2 3 ... 4 address in DE
pop hl ; cpair
call cpair_setlinkptr ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... ; none of these operations affect flags
ld (hl), c
flags. point at the tag
pop hl ; pop symbol name
pop hl ; restore ...
.endoflist
pop hl ; pop start of list
IF ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... ; none of these operations affect flags
ld (hl), c
flags. point at the tag
pop hl ; pop symbol name
pop hl ; restore ...
.endoflist
pop hl ; pop start of list
IF ...SCF/CCF flags - new discoveryI can't believe that no one is interested in discussing the additional, previously undocumented internal state of the Z80 CPU I have discovered recen…
... If an instruction modifies the flags, the immediately following SCF ... explicitly clear - by modifying flags I mean updating the ... EX AF,AF' and POP AF instructions, which technically change ... instructions that set flags (any or flags 3 and 5 specifically ...SCF/CCF flags - new discoveryI can't believe that no one is interested in discussing the additional, previously undocumented internal state of the Z80 CPU I have discovered recen…
... [/i] instructions that set flags (any or flags 3 and 5 specifically ... make scf/ccf to set flags 3 and 5 to A ... and POP AF, although changing F, do not compute new flags value ... current instruction, the logic for flags 3 and 5 of scf ...Shadow of the UnicornI've written a program to run Shadow of the Unicorn on a +2A/+3. Is there anywhere it can be put to be available to anyone wanting to play the game?…
... need instructions to set the flags register to 0. It works ...what made u buy a spectrum?Yo spec-chums what really made you buy a spectrum?. Here is my story i was about 9 and had a oric1, poor me eh?, yes it had 48k but it was just about…
PLEASE HELP MEI just got my ZX Spectrum out of its box after being in the loft for a number of years and tried to play a few games but when I turned it on and tune…
... colour and little flashing squares pop up now and again when ...Microdrive woesHi there! Just managed to pick up a 2nd hand Microdrive and interface one... Came with an introductory program which doesn't seem to load. Since its…
... second and the drive spins. Pop the cart into the drive ...SPIN V0.2 Now Available[Standard CSS cut'n'paste message] Hi all! Well, again another update, but we think this one's well worth it. There's numerous additions and fixes,…
... bug where SPIN would not pop to the foreground when a ...Unlucky 13 quiz....at last i done a quiz.Ok heres my effort of a quiz.Usual rules apply,post your answers here and i will mark them on Sunday 23rd. There is a total of 20 points available...…
... ! clue.. it was an 80s pop star. 2 points for this ...Sharopolis's QuizHere you are folks, My quiz, edutainment at its best. This is the first quiz I've compiled so sorry if its too easy or hard or whatever. Some of the…
... fans with his surreal electro pop noodlings on the B side ...Quiz - my first attempt!And so it is! My first attempt at a quiz... 1. All answers give 1 point unless otherwise stated, for a total of 33 points. 2. Give your answers excl…
... ) Spanish game featuring an Italian pop singer.
15. In ...Shaw Brothers (Atlantis etc) have a website!Yes it's true pop down to our site at [url="http://www.sickhappyidle.com"]www.sickhappyidle.com[/url] and see what we are upto these days! we have a…
Yes it's true pop down to our site at [ ... , use the notice board or pop into our chat rom!
ANNOUNCE: vbSpec - Bad News/Good NewsFor a number of largely dull and uninteresting reasons, I am no longer able to continue maintaining vbSpec, the open-source Spectrum emulator for Win…
... I suggest all vbSpec users pop over to his site and ...kazaa for 8/16 bit stuffhello, just thought id pop my head in the spectum camp (im a commodore 64 geezer by choice. please dont throw any bricks yet) in the forums at lem…
... ,
just thought id pop my head in the spectum ...
