exxos's Atari, Amiga & retro forum

Posted: **16 Apr 2020 15:38**

Rather than load a picture from file to screen, does anyone know how to load this into a ASM routine as DATA and copy it to the screen ?

I can do this in basic,but it takes 8 seconds to poke a single pixel line to screen :(

Posted: **16 Apr 2020 15:47**

Most assemblers have an INCBIN directive or similar. With this, you can include any binary file into the executable. From there, just copy it to screen.

Alternatively, you can write a simple tool that spits out "dc.b" directives, and include that.

Posted: **16 Apr 2020 16:19**

You mean something a like:

Code: Select all

		LEA #DATA_START, A0
		LEA #SCR_START, A1
		MOVE.L #SCR_SIZE_IN_LONGS, D0
Loop:		MOVE.L (A0)+,(A1)+
		DBNE D0, Loop

I'm trying to remember my M68K assembler from a long time ago.

Posted: **16 Apr 2020 16:29**

Oh, almost forgot, there is also a nice tutorial made by Vincent,

exxos's Atari, Amiga & retro forum

Storing screen data in ASM code ?

Storing screen data in ASM code ?

Re: Storing screen data in ASM code ?

Re: Storing screen data in ASM code ?

Re: Storing screen data in ASM code ?