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Forums > C64 Coding > how do i load and run a program from another?
2006-04-11 13:59
Trifox
Account closed

Registered: Mar 2006
Posts: 108
how do i load and run a program from another?

...have made a reader programm for my upcoming 1k game, now i want this reader to load the game and start it !
 
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2006-04-12 06:59
TNT
Account closed

Registered: Oct 2004
Posts: 189
INPUT# doesn't work in direct mode, but you can POKE58,254 before it to work around that.
2006-04-12 08:16
hannenz
Account closed

Registered: Nov 2002
Posts: 24
i tried it and THIS must(!) work: (it works for me in vice with a d64 image attached containig a file called "game", compiling with ACME):

!to "c:/test.prg"
!ct pet

*=$1000

		lda #1
		ldx #8
		ldy #0
		jsr $ffba
		lda #fend-filename
		ldx #<filename
		ldy #>filename
		jsr $ffbd
		lda #0
		jsr $ffd5
		rts
		
filename		!tx "game"
fend

2006-04-14 01:01
Wyndex
Account closed

Registered: Apr 2006
Posts: 1
Hi guys,

If you're using 0 as the secondary address/command (ldy #00 before SETLFS), you need to specify the load address in XY before the call to LOAD:

LDA #08 ;File no.
LDX $BA ;Current device number
LDY #00 ;Secondary address
JSR SETLFS
LDA #0
LDX LOADADDR
LDY LOADADDR+1
JSR LOAD

If you want to use the address stored in the file, use LDY #1 (like load ,x,1).

-Wyn-
2008-07-23 12:06
El Topo

Registered: Jun 2006
Posts: 43
Ok, a related question. I've written a program that loads a couple of SEQ-files to memory. I get it to work when running it from TASM (compile+execute option) but when I do a sys to my program at the basic prompt I get a file not found flashing.

Filenames are stored like this: label .text "filename,s,r"
Correct?

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