Atari Roots Chapter 4

[slampam]

I'm want to assemble this 2+2 addition program with atasm but the output "addnrs.bin" doesn't have the right header or length and so the program doesn't load or run. What do I need to add to make it work?

 

AN 8-BIT ADDITION PROGRAM ADDNRS.SRC (Atari Roots Ch.4)

 

10 ;

20 ;ADDNRS.SRC

30 ;

40 *=$0600

50 ;

60 CLD

70 ADDNRS CLC

80 LDA #2

90 ADC #2

100 STA $CB

110 RTS

120 .END

 

http://www.atariarchives.org/roots/chapter_4.php

http://www.atariarchives.org/roots/displayfile.php?file=ADDNRS.SRC

addnrs program.txt

addnrs atasm output.txt

addnrs.bin

[8bit-guy]

depends on the compiler's/editor syntax

check spaces/tabs ,

if it requires line numbers or not

 

and maybe replace *= with ORG

[Xuel]

It looks like you used the -r option of atasm. Just use no options, and you should get a proper object file with the appropriate header. But note that running that program from DOS won't have any visible effect because all it does is write the result of 2+2 to an unused zero page address ($CB). You could use the debugger in an emulator like Altirra or Atari800 to view the result though. Or you could use an assembler with a built-in monitor that runs on the Atari like Mac/65 or Assembler Editor. See also this thread.