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logical operators and the calculator stackI was wondering if there was a utility which would provide the list of commands needed for the ROM calculator to evaluate a logical expression. For e…
... commands needed for the ROM calculator to evaluate a logical expression ... logical expression and output the calculator commands, with an option to ... -
please allow 28 days for deliveryi remember ordering stuff mail order, and it was always 28 days delivery. these days a company offering that service wouldn't last long. how come …
... order, and it was always 28 days delivery.
these ... it always seemed the same 28 days where ever you went ... -
AND,XOR,OR,BIT,RES,SET,CPL,NEG,RLC,RRC,SLA,SRL,RL, RR,SRA for BASICAs this was drifting away from the original INKEY$ thread I thought that I'd create a new one. So here's a routine to provide all of the above mentio…
... br /> FPTOBC: equ $2da2 ;from calculator stack: BC
FPTOA: equ ... ;step over +VAL"
rst $20
rst $20
ld bc ... here
call STAKA
rst $20 ;step over "
... -
Procrustean PrintingHere's a short routine to manage printing of text with command tokens, to avoid messing up the screen when they are expanded. It just prints as many …
... FETCHS: equ $2bf1 ;from calculator stack: AEDCB
FPTOBC: ... controls
PRCHAR: rst $10 ;print a ... reset bit 7
rst $10 ;print a character ... a trailing space
rst $10
dec ... -
Undefine functionHere's a routine to selectively remove variables from the VARS area and reclaim the space. This can be done partially from BASIC already by assigning…
... LOOK_VARS
FETCHS: equ $2bf1 ;calculator stack to AEDCB
E_LINE ... SCANNING
inc ix
rst $18
cp ","
... br /> ld (CH_ADD),ix
rst $18
ret
[/ ... -
28-character wide multicolour(ish) on 48k SpectrumLong-time lurker here... I've always been interested in rainbow effects on the 48k Spectrum, mainly from a perspective of "Just what [I]would [/I]ha…
... /> So, the code below does 28-character wide multicolour, for eight ... a total of 14*2=28 columns.
Some comments ... -
Using RST 16 and udg flickerHi there! I'm using UDGs and RST 16 to make a simple canyon bomber game. I've got the game mechanics working ( finally ) but now I'd like to make …
... /> I'm using UDGs and RST 16 to make a simple ... -
Retro Asylum: Episode 28.5[img]http://retroasylum.com/wp-content/uploads/2012/12/28.5.png[/img] Your host this week is Matt Denaris who talks about the current trend of Kicks…
Willys-Great-Adventure - New game after 28 years?Not sure what to make of this so I have posted to see what you all think. Game found after 28 years [url]http://matthewsmith.elite-systems.co.uk/?t…
Not sure what to make of this so I have posted to see what you all think.
Game found after 28 years
[url]http://matthewsmith.elite-systems.co.uk/?tag=willys-great-adventure[/url]Sinclair calculator reverse-engineered[url]http://files.righto.com/calculator/sinclair_scientific_simulator.html[/url]
[url]http://files.righto.com/calculator/sinclair_scientific_simulator.html[/url]Reverse engineering Sinclair's 1974 calculatorInteresting read: [url]http://files.righto.com/calculator/sinclair_scientific_simulator.html[/url]
Interesting read:
[url]http://files.righto.com/calculator/sinclair_scientific_simulator.html[/url]Port $28FF. Why 28?Testing floating bus behaviour for ZXUno, I've found that both Cobra and Arkanoid use this specific 16-bit port: $28FF. What is so special about putt…
Testing floating bus behaviour for ZXUno, I've found that both Cobra and Arkanoid use this specific 16-bit port: $28FF. What is so special about putting the value $28 in A15-A8 during a read to $FF?
Thank you very much in advance! :)RST hooks in OpenSE BASICHi, any possibility of OpenSE BASIC having RST vectors rewired to a small table in RAM containing jumps back to apropriate ROM locations? :grin: It i…
... possibility of OpenSE BASIC having RST vectors rewired to a small ...28-pin DIL header? (COMMODORE ALERT!)If you are offended by Commodore stuff, look away now... Hi, guys; So today I got a SuperPLA to fix my breadbin C64. It worked! Yay! However, whe…
... " are simply a wide-pitch 28 pin DIL header with nice ... like a turned-pin wide 28-pin DIL socket, only with ...Patching RST routines?Hi all, I am quite unexperienced regarding the Speccy and today I made another attempt to make a concept for a SymbOS port to this machine. There is…
... at #0000-#0040 for the RST commands?
Is there ...Panasonic 28" CRT TVI've got a Panasonic 28" CRT TV in perfect working condition if anyone wants it. Freeview built in. Stand, remote etc. Free to good home. But must…
I've got a Panasonic 28" CRT TV in perfect working ...SINCLAIR SPECTRUM/QL JOBLOT! 28 MD'S working, responged, with 75 games on it!Directly from my personal Sinclair collection... ...28 MD's for ZX SPECTRUM!!! ALL are RESPONGED and working 100% 25 are compilations of gam…
... personal Sinclair collection...
...28 MD's for ZX SPECTRUM ..."ZX80 Brain" RPN CalculatorIt is at times like [url=https://www.worldofspectrum.org/forums/discussion/54176/depression]when threads such as this are posted[/url] that I get the…
... he showed us an RPN calculator program he'd written on ... ago could write an RPN calculator program, why couldn't I ... bit ambitious to make a calculator with all the scientific functions ...line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... : JR Z,PLOT
;REPORTBc RST 08H ; ERROR-1
; .DB ... ,27,27,27
.db 28,28,28,28,28,28,28,28
.db 29,29,29 ...Early Speccy Memories ThreadHiya. Right Ok. I want to start a thread going here and I want to know all about your early days with speccys. I am 31 now. I got involved with spec…
On 2004-06-28 13:29, cjp_24 wrote:
< ... a tiny thing like a calculator - I think it had a ... by: Trainspotter on 2004-06-28 14:58 ]
