... /> How do you print an UDG with RST 16?
[CODE]
LD A, 2 ; Select upper screen
CALL ... RST 16 ; Call the print routine[/CODE]

If ... d particularly recommend Spectrum Machine Language For The Absolute ...

... I never printed some on screen in MC
I ... BASIC you can start your code with PRINT USR.

... XOR A
CALL #1601 = lower screen

LD A,2 ... will ALWAYS set upper screen!

[code]
; -----------------
; THE ...

... can start a machine code program with RANDOMIZE USR memory- ... returns a result. Your machine code program can talk to ... a keyword. So you PRINT USR or GOTO USR ... the PRINT will obliterate a portion of the screen on ... . The ROM manages the machine stack, which "grows" ...

... IMHO) a level where Machine Code is becoming an art and ... a screen that will be printed to a file with ... a working version
and I will print the screen ... to a file with the new version ... too many so the screen is missing 1 line ...

... ula. A 256x192 mode with a choice of four colours ... doesn't take up more screen memory. Both of these methods ... 6.75K to 12K of screen data. Not impossible as ... still be drawn from the lower 16K RAM bank. The ... the extra mode exclusively from machine code...

... of transferring them to the screen.

The limitation of ... PRINTable characters - but machine-code games ignore the PRINT mechanism entirely and do ... also do the same trick with the 'CHARS' system variable, which ...

... op-codes) and Introducing Spectrum Machine Code by Iain Sinclair (has an ... ,13 ;
rst 10h ;print Return
pop af ;get ... the program it comes up with gibberish after this point. ... /> Finally, when 'opening up' the screen ready for printing, is there ...

...
ld (5C3Ch),a ;open screen for printing
;
[COLOR ... a,13 ;
rst 10h ;print Return
pop af ;get ... loop, and pre-load it with the (already) zeroed [B]A ... this, to work in 'real machine code' is wonderful :)

My ...

...
ld (5C3Ch),a ;open screen for printing
;
... ,13 ;
rst 10h ;print Return
pop af ;get ... I suppose at the moment machine code seems to be just so ... become habitual, especially when dealing with low level skuzzy assembler : ...

... the ROM to do any screen printing stuff - so the [B ... check this as

PRINT USR 6683 outputs 668365526
machine code as BC holds the argument ... ROM is written like this with some quite complicated structures following ...

... (in the same way, machine code was called a low level ... [QUOTE]
Consoles have slightly lower level APIs than PC because ... - but.. developers no longer fiddle with hardware registers - the hardware is ... allowed to know how the screen was laid out in ...

Now with saving temporary colours

[code]
; PRINT AT Y,X full screen
; Y = B-reg, X = C-reg
; 0

... totally self-contained with a few lines of code?

... DOES come time to print to the screen via RST 16 then ... this Thread was about using Machine Code equivalents for BASIC commands, but ... the screen and worry about the colours later then dealing with ...

... DOES come time to print to the screen via RST 16 then ... you can alter them easily with RST 16 and the graphical ... this Thread was about using Machine Code equivalents for BASIC commands, but ... the screen and worry about the colours later then dealing with Channels ...

... ROM disassembly I came up with the following formula to ... a character position on screen.

[CODE]LET sa=16384+32 ... CC system variable:

[CODE]PRINT AT y,x;
LET ... be simpler to implement in machine code (I think).

...

... ROM disassembly I came up with the following formula to ... a character position on screen.

[CODE]LET sa=16384+32 ... CC system variable:

[CODE]PRINT AT y,x;
LET ... be simpler to implement in machine code (I think).

...

... was thinking about Z80 machine code etc. One learning exercise ... was to write a machine code double height character printing ... you have a top/bottom PRINT statement. This allows the ... full use of the PRINT features e.g. colours ... count=0
140 PRINT AT 0,0;a< ...

... it to wrap around the screen. So if the user goes ... on the other side. The machine code IS correct since i passed ... side of the screen). I first just used PRINT USR 61440 and ... /> So then i replaced them with Randomnise usr x (where x ...

... memory with some string, e.g. "Hello world of spectrum" and print ... /> [/code]

Remember that calling MC can use upper or lower screen ... adres= lower screen
PRINT "" AND USR adres = upper screen and undoing print of BC ...

... adres= lower screen
PRINT "" AND USR adres = upper screen and undoing print of BC ... 2
CALL 1601
[/CODE]

I picked that ... the main screen?

[QUOTE=gasman;485248]
PRINT AT ( ... inserting control codes (bytes with value

... more with each other to reduce the workload - use similar code instead ... lcd screens dont actually support lower screen rez - cant the optimum ... vga adapter int he same machine? how does the emulator ... by keeping the screen at a higher rez with four pixels ...

... code to print numbers and text to the screen:

[code ... br /> [/code]

To conclude, an emulator with a built ... nothing to do with the Z80 ... - no more machine code will be processed ...

... INPUT statement - essentially, you start with LET a$="", then have an ... of a$ (and print it to the screen) and repeat the loop ... along with other nice benefits like putting it at any screen position ... job (converting your program to machine code to give it a good ...

... INPUT statement - essentially, you start with LET a$="", then have an ... of a$ (and print it to the screen) and repeat the loop ... along with other nice benefits like putting it at any screen position ... job (converting your program to machine code to give it a good ...

... have an equal, if not lower, boredom threshold. Yet the majority ... said, but of course raw machine code is going to win out ... sprites you can have on screen at any one time? If ... sprites on screen compared to their predecessors.

[QUOTE]With time ...

... educational market on its screen configuration. Personally I would ... Coleman;511581]If the code in Football Manager is ... Spectrum editor, Sinclair printer, PRINT and PAUSE 0 oh and ... You can't make much with basic no matter what ... and start learning machine code.

... speed. It loads itself onto screen buffer, and loads other parts ... -way between interpreted BASIC and machine code. That's why it takes ... (a/2) = a/2 THEN PRINT "EVEN": NEXT a
30 ... />
Because the key is "code with the compiler in mind", because ...

... one. Assume I work with a particular file containing the ... should operate on assembly or machine code, right? Should I disassemble ... (keyboard/joystick) and output (screen)? Which asm instructions and memory ... . Like this:
10 PRINT "Hello World"
20 ...

... 's a patch to print into the lower screen, plus some evidence. It ... into the lower screen or if printed directly to the lower screen (eg. ... LPRINT AT 0,183;"something").

[code]
with a JP to PIXAD+2 ...

... [/url] with na_th_an's demo updated to include the machine code wrapping routine ... and the lower screen patch. There's ...