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I live and learnThanks to Einar's ZXDB link I found under the Books folder and English sub directory a PDF file named 'The Century Computer Programming Course for Z…
... one. -
10 PRINT "This program gives the Sum ... five numbers"
15 PRINT "Enter 5 numbers and press ... 20 INPUT a
25 PRINT a
30 INPUT b ...
40 PRINT b
45 INPUT c ...
50 PRINT c
55 INPUT d ... -
Speeding up PRINT code in ROMHi Folks, I seem to recall that someone stated the PRINT command is rather slow because it has to handle screen and printer printing - is this cor…
... recall that someone stated the PRINT command is rather slow because ... -
Print vs 23659To be honest I could not think of a better topic title, although its not ideal. Anyway, I do recall reading ages ago that the reason you cannot no…
... normally get away with a PRINT AT 22,(whatever) is because ... POKE 23659,0
20 PRINT AT 22,0;"Yes we ... POKE 23659,0
20 PRINT AT 23,0;"Some text ... the value checked in the ROM and somehow 22 can get ... -
How are LAST-K and FLAGS set on a Real Spectrum?Hi, I'm writing a Spectrum emulator and I've got Horace and the Spiders working (with the wrong colours and no sound) but when I boot into ROM non…
... ) but when I boot into ROM none of the keyboard presses ... ) but the ROM uses bit 5 of FLAGS and LAST-K to ... , FLAGS and LAST-K aren't set by the ROM so I ... the key is stored in LAST-K so, if you press ... keys between reads of LAST-K, only the last one is recognised ... -
Is it possible to run a single BASIC line via a ROM CALL of the Standard ZX 48k ROM?On: https://cygnus.speccy.cz/popis_trdos-assembler.php I found the following code: [code] CHADD equ 23645 ; Location of SOS variable CHADD ld…
... a CALL to TRDOS/Betadisk-ROM (15619 on TRDOS v5).
PRINT "Hello World"
be runned ... with the standard ZX 48k ROM? -
ZEsarUX Beta 8.1Hi! I have uploaded a new ZEsarUX 8.1 BETA version. You can download compiled versions for Windows, Mac, and the source code from: https://gith…
... snapshot from ZRCP
-print-footer: print message on footer
-put ... height and have more debug lines
-cpu transaction log: faster ... bug loading .sna files when rom 1 paged in
Fixed ... -
ZEsarUX 8.1 stableHi! I've uploaded a new ZEsarUX 8.1 stable version. Go to the github released webpage to download it: https://github.com/chernandezba/zesaru…
... snapshot from ZRCP
-print-footer: print message on footer
-put ... height and have more debug lines, legend keys expand as width ... bug loading .sna files when rom 1 paged in
Fixed ...
-fixed error when paging rom in ram, on case pages ... -
How to write a simple BASIC* horizontal scrolling game (Tutorial) [b]How to write a simple BASIC* horizontal scrolling game[/b] In this tutorial, we will be talking about how to write a simple BASIC* horizont…
... s only a couple of lines but it will have ... Line 300, where we print a character to the right ... ]
The last thing we add for now ... game.
Then we print the score right after scrolling ... score : ";s;
300 PRINT AT RND*20,30;"*"
48K ROM copyrights holderHi everyone I would like to check with you about the rights to the 48K ROM. It seems the current rights owner is Sky UK. Did anyone have any recen…
... statement from Sky regarding the rom rights (like Amstrad had here ... the emulators updated in the last 5 years. None of them ... ) which would rely on the ROM routines.
While probably not ... , using the original ZX Spectrum ROM (48K) would make things easier ...New Spectrum ROM: Arcade Game DesignerIn the last few days I've completely rewritten the Spectrum ROM from scratch to include AGD. Some of the functionality from version 4.8 has been los…
In the last few days I've completely rewritten the Spectrum ROM from ... the editor routines in the ROM, AGD users have a bigger ... playground too.
The ROM comes with documentation. I've ...Last Problem in Chapter 3 of Toni Baker's Mastering Machine Code on your ZX Spectrum.Chapter 3 of this great book is all about how to use the registers and covers the operations LD, ADD, ADC, SUB, SBC, INC, DEC, SCF and CCF. The la…
... and CCF.
The last task asks a program be ... , and I invoke it by PRINT USR 61440. However, I can ...boot fail .. bad address lines A7,A12,A13anybody have any ideas what could be wrong with this specie issue 3B .. work done : removed rom, upper ram & logic put lower ram multiplexers in sock…
... issue 3B .. work done : removed rom, upper ram & logic put ... the data & address bus lines from cpu on ward for ... boot from a different external rom ie zx diagnostics, or ,paul ...Speccy machine code info where is it?Recently I've been trying to learn Z80 and I've managed to make limited progress (some of my routines even compile now!) but I seem to be having trou…
... programs (apart from the Speccy ROM) like there are for some ... each block are 8 character lines (8 vertical rows)
3 ... character line contains 8 scan lines (8 vertical pixels per character ... 8 vertical scan lines denoted by "SSS". To print the letter 'A ...ask to Spanish-speaking personsHello there. Who would be able to translate one short text for me? I used BabelFish site, but it isn't very good in this case. The text is here: …
... attention and read between the lines. Like the bit about the ... />
Toward the end of last year they released their first ... we have the inlay to print out, which is of very ...ZX in FPGA...Hmm..seems nobody is interested in a replacement PCB with FPGA...well..heading towards next FPGA projects then...C64 and others (o; [ This Messag…
... industry initiatives.
The lines of VHDL/Verilog usage is ... the FPGA features until the last few years. Verilog dominates the ... IDE for hard drives + CD ROM, PS/2 mouse connector and ... not including hard drive/CD ROM). This is not a single ...IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... ;interrupts. Jump to 0056 in ROM
jp 56 ;for smooth ... br /> RET Z
; Print 3rd column, checking for wrapping ... /> CALL WChar
; print the last blank char
CALL AChar ...IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... interrupts. Jump to 0056 in ROM
jp 56 ;for ... CALL WrapCharVertically
; Print next char and move to ... WrapCharVertically
; print the last blank char
CALL WriteBlankSpriteChar ...An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…
... love to be able to print text at anywhere on screen ... , I have 512K (-100K for Rom, basic vars, screen memory etc ... scratch on my Real SAM last Feb, when I had no ...PokesDoes anyone know where I can find a list of Pokes for my Speccy games? I am trying to find some for On the Bench ! Thanks
... .e. tries to load the last short part, "[B]M1[/B ... need to hack these [I]lines[/I] anyway, but you could ... the numbers of the [I]lines[/I] that this final loader ... program in between, say, [I]lines 51-59[/I] (for example ... 22: INPUT T$(A,B): PRINT A;"-";B;"-";T$(A,B ...is it easy to learn z80 machine codewell is it?
Or in short - ROM routines are your friend (so ... with it.... I think the last thing I touched was Simon ... code - to modify it to print a message before loading a ...Pixel LimitIF Y3<192 THEN : LET x2=INT (128+X*A*SIN A): LET y2=INT (Y3): DRAW INK
[quote]
On 2004-11-16 21:44, dalmudlee wrote:
I have never seen this graphics restriction before. Why does the Spectrum have this limitation?
1720 FOR A=0 TO INT ((50*3.14)-38) STEP 3.14/P
1730 LET Y3=96+Y*A*COS A
The incredible shrinking screendumpIn this topic I stated that I would be impressed if the screendump could be smaller than 37 bytes. [url="http://www.worldofspectrum.org/forums/viewt…
... :
The print loop is used to print a controltable and ... holds 192, the number of lines to be printed. This value ... SUB B because when the last line is done SUB 1 ...SAVE the complete screen in BASICHow can I save the COMPLETE screen (with the last two lines) in BASIC? If I type SAVE "XXXX" SCREEN$, then comes the message "Start tape, ..." and th…
... the COMPLETE screen (with the last two lines) in BASIC?
If ... "Start tape, ..." and the last two lines are destroyed!
[/quote]
print the screen and it contains ...BASin release 12a available for downloadChristmas has arrived early, and the new release of BASin is ready for you lot to point out errors, inconsistencies and bugs. Get it here: [url="ht…
... the first line to the last line above the cursor. You ... 't then seperate the two lines and the program won't ... the last line of the program, for example:
10 PRINT ...BASin release 12a available for downloadChristmas has arrived early, and the new release of BASin is ready for you lot to point out errors, inconsistencies and bugs. Get it here: [url="ht…
... last line of the program, for example:
10 PRINT ... BASin is deleting the last few lines of the program - ie ... - and adding the new lines to the end). In ... be adding in a few lines of code *after* ... data, thereby making these lines no longer the end of ...Mess around with basicIf you have a game that was written in basic, e.g Football Manager, how do you look at the code that was used? thanks
... of bytes, but two PRINT commands would take 100s of ... correctly without the original ROM in place so I ... seriously considering a two ROM approach to any future ... be called from the old ROM. The only thing necessary ... on typing about 10 lines later only to find ...
