-
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…
... [COLOR="Red"][b]ld a,0 ;Redundant as A is already ... br />
ld b,0 ;[COLOR="Red"][B]This *MIGHT ... ,13 ;
rst 10h ;print Return
pop af ;get ... z ;exit if 20-20=0
jr loop ;next ... ,11,7,"Hi there, partner!",0
;
ld ... -
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…
... [COLOR="Red"][b]ld a,0 ;Redundant as A is already ...
ld b,0 ;[COLOR="Red"][B]This *MIGHT ... ,13 ;
rst 10h ;print Return
pop af ;get ... z ;exit if 20-20=0
jr loop ;next ... so the [B]LD B,0[/B] *might* be redundant ... -
How do you start?ok just humour me, ive always wanted to code but never got round to it apart from the real basics ie:- 10 print "hello" 20 print 30 goto 10 i coul…
... makes the A start at 0 then it moves 1 pixel ... how it goes.
PRINT AT in Spectrum BASIC is ... -
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…
... looks like....
[code]
; PRINT A MESSAGE THEN CHANGE BORDER ... ,11,7,"Hi there, partner!",0
;
ld hl,60000 ... ]Z[/b] flag if a=0 but not the [b]C ... the same as LD A,0 etc. -
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…
... - so the [B]LD B,0[/B] *might* be redundant too ... move the [B]LD B,0[/B] outside of the main ... check this as
PRINT USR 6683 outputs 668365526
0 in a loop.
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…
...
call #2f86 ;print bc, also set B=0
ld a ... ,13 ;
rst 10h ;print Return ... z ;exit if 20-20=0
jr loop ;next number ...Tape loading question...I'm getting back into BASIC after some 20 odd years away from it and i've started saving stuff to tape. How do I go about making a loaded program aut…
poke 23659,0 i think... does summat to the input lines at the bottom of the screen... turns them off i think, then when basic tries to print at the input lines it causes the system to crash...Tape loading question...I'm getting back into BASIC after some 20 odd years away from it and i've started saving stuff to tape. How do I go about making a loaded program aut…
[QUOTE=polomint;421646]poke 23659,0 i think... does summat to ... , then when basic tries to print at the input lines it ... /> I used to prefer 23613,0 in a program itself rather ... than 23659,0 :)
I could ...Defenda (Interstella) makes resetDefenda from Interstella makes a reset if I take No. 1 Kempston joystick. My jockstick interface is from Ram Electronics (Fleet) Ltd. Joystick is a C…
... each direction.
10 PRINT AT 0,0; IN 31; " "
20 ... to this.
10 PRINT AT 0,0; IN 223; " "
20 ...Swords and Sorcery by PSSCan anyone help me out with completing this classic game? There seem to be plenty of bugs with it, so just knowing that it is in fact possible to com…
... NEXT n
60 PRINT "S&S V1 ... V2 UPDATE"
65 PRINT "LOADING OLD CHARACTER"
... NEXT n
110 PRINT "INSERT BLANK TAPE"
120 PRINT "START RECORDING & ... 130 PAUSE 0: RANDOMIZE USR 28000
140 PRINT "FINISHED": ...Speccie Four EyesWell as the tittle suggests I'm going to have to start wearing glasses. I have my eyes checked today and was amazed at the difference good lenses ma…
... /> so now it's like 0.25 either way... but night ... help with dazzle and small print.. they are handy..
ULA Price Poll - You get to chooseIt is difficult to set the price of the book. If it is too low I will undersell my efforts, too high and I overcharge. So choose what you would be w…
... your mini-laptop, sell for 0 shipping costs, etc. etc.
print it (or have it printed ... don't mind paying extra (print + shipping) to have the real ...OR in a IFHi guys, I have a string that is defined by the user. I want to have an IF that does something like IF string<> a OR b OR c THEN goto 10 Hope that m…
... PRINT (7 OR 3) + (7 OR 0) + (7 AND 1) + (7 AND 0 ... ("%d\n", (7 || 3) + (7 || 0) + (7 && 1) + (7 ...Super Hang On (Speedlock deprotector program needed)Hello all, I been looking into finding a way of decrypting the speedlock on Super Hang On. I want to create a deprotected tap version of the game, w…
... br /> 30 PRINT "Start Super Hang-On Tape": PAUSE 0: LOAD ""CODE ... 1
120 DATA 100,0,62,243,237,177,43 ... ,1
140 DATA 0,6,237,176,33,150 ...
190 DATA 54,0,33,190,117,17,217 ... /> 230 DATA 176,195,0,72,205,142,2,28 ... 40,250,221,33,0,64,17,0
250 DATA ...Super Hang On (Speedlock deprotector program needed)Hello all, I been looking into finding a way of decrypting the speedlock on Super Hang On. I want to create a deprotected tap version of the game, w…
... NEXT C
30 PRINT "Start Super Hang-On Tape ... br /> 120 DATA 100,0,62,243,237,177,43 ... 1
140 DATA 0,6,237,176,33, ... 33,38,255,1,100,0,62
180 ... br /> 190 DATA 54,0,33,190,117,17,217 ... 200 DATA 1,36,0,237,176,201,17,36 ... 230 DATA 176,195,0,72,205,142,2,28 ...Super Hang On (Speedlock deprotector program needed)Hello all, I been looking into finding a way of decrypting the speedlock on Super Hang On. I want to create a deprotected tap version of the game, w…
... B: NEXT C
90 PRINT "Start Super Hang-On Tape ... 1
180 DATA 100,0,62,243,237,177,43 ... 43
250 DATA 54,0,33,190,117,17,217 ... br /> 290 DATA 176,195,0,72,205,142,2,28 ... 17
310 DATA 0,62,0,55,205,194,4,221 ... ,32,64,156,168,97,0,128
[/code]
< ...BEEP pitch values for key of G?I've been transcribing a listing which is supposed to include a DATA statement with the pitch values for the key of G. What it's got is: DATA 5,7,9,…
...
30 LET chord=0
40 PRINT AT 0,0;"Lydian "
50 ... /> 100 IF chord=20 THEN PRINT AT 0,0;"Mixolydian": LET chord=24 ... /> 110 IF chord=32 THEN PRINT AT 0,0;"Dorian ": LET chord=36 ... /> 120 IF chord=44 THEN PRINT AT 0,0;"Aeolian ": LET chord=48 ...BEEP pitch values for key of G?I've been transcribing a listing which is supposed to include a DATA statement with the pitch values for the key of G. What it's got is: DATA 5,7,9,…
... Over The Rainbow"
40 PRINT AT 11,12;" Lydian ": ... LET scale=0: GO SUB 120
50 PRINT AT 11,12 ... SUB 120
60 PRINT AT 11,12;"Mixolydian": LET ... GO SUB 120
70 PRINT AT 11,12;" Dorian ": ... GO SUB 120
100 PRINT AT 11,12;" Locrian ": LET ...SCREEN$ and Sinclair Basic: Help Required !Two simple questions: 1) When saving SCREEN$, how can I avoid the bottom of the loading screen from being chopped off by the 'Start Tape & Press Any…
POKE's ugh,
have a blank space in your loading screen and then use
print at x,0; (where x=blank space-2)
load "" code
this bobs the bytes part in the blank space.Easy way to print text in machine code?Please? It sounds so simple, but I've never done it. At the moment I'm grabbing the start address for each letter then printing them out one at a t…
...
defb 22, 4, 0 ; PRINT AT 4,0
defm "Cheat (Y ... for printing
defb 255 ; Print end marker
print_text ...tricks to simplify codingWhen i started with programming in assembler i had very simple approach to do things. Just shifting bytes around, doing simple tests and so... Later …
I use some PRINT AT routine with BC as ... ZX81EMUL
A holds code 0-255
[code]
LD ...Real Spectrum screen flicker with SCREEN$I've written a basic loader to simply do a 'load "" screen$' based video from a divide+ however I'm finding the Spectrum can't render a screens and a…
... from usr0 mode (enter 'usr 0' from 128 basic which will ... 't do something like 1 PRINT USR 0. Is there any way ... this to work without USR 0?
[code]
10 ...Real Spectrum screen flicker with SCREEN$I've written a basic loader to simply do a 'load "" screen$' based video from a divide+ however I'm finding the Spectrum can't render a screens and a…
... 't do something like 1 PRINT USR 0. Is there any way ... this to work without USR 0?[/QUOTE]
Unsure, but ... bit more of why USR 0 is needed for so many ... how to get everything USR 0 gives you, but without a ...Physics program annoucedHi everyone I have a great new idea!!!! I am going to release a series of mini physic programs with each one containg lots of physics formula. Like …
... Data
20 CLS : PRINT "MODEL UNIVERSE": PRINT
30 INPUT " ...
40 PRINT TAB 23;"M1=";m1: PRINT TAB 23;"v1 ... =";v1: PRINT TAB 23;"A1 ... =";a1: PRINT TAB 23;"x1 ... : PRINT TAB 24;"G=";g
50 LET dt=0.1 ...Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
[code]
; PRINT AT Y,X full screen
; Y = B-reg, X = C-reg
; 0Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
[QUOTE=Dr BEEP;437761][code]
; PRINT AT Y,X full screen
; Y = B-reg, X = C-reg
; 0Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... but...
Does it actually print to lines 22 and 23 ... owned by the input channels #0 and #1.[/QUOTE]
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
Now with saving temporary colours
[code]
; PRINT AT Y,X full screen
; Y = B-reg, X = C-reg
; 0Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... /> ;p_mess db "Hello World 12345",0
;
;
;
... rrca ;where B=Line Value (0-23)
rrca ;where C ... =Column Value (0-31)
rrca ;Screen Address ... ......
[CODE];Bold Print
p_print: ld a,(hl ...
