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Looking for a specific 6502 Assembler

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9

I found some 6502 assembler code for a Commodore 64 program that uses meta commands like #include "foobar", define the address to be assembled to via *=$1234 and define labels without a colon. Comments are marked with a leading ;, and the syntax allows for specifying characters as constants such as in lda #'A'.

Which assembler programs have this kind of syntax and could be used to assemble the file?

I already know that

• 
  ca65 assembler uses keywords like .import and .export but not #include. And ca65 requires a colon after a label definition


• 
  dasm assembler files define the start address with the org directive, but not with *=
  


• 
  kickass assembler has different comment format


• 
  64tass does not know the includekeyword

so it is none of the above (I tried and the build failed).

commodore-64 assembly 6502

share|improve this question

edited 16 hours ago

Peter B.

asked 17 hours ago

Peter B.Peter B.

784212

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  So far it might be safe to assume you're looking fro an 6502 assembler, but what computer?
  
  – Raffzahn
  17 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  It is for a C64, I added it to the description.
  
  – Peter B.
  17 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  I suggest ignoring #include and any other C preprocessor like directive, and assume the source code you're looking at meant to handled by passing the source though a C preprocessor before being assembled. The GNU Assembler doesn't support C preprocessing directives, but you'll find a lot of code written for it that uses them anyways.
  
  – Ross Ridge
  17 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Having used DASM extensively for 15 years, I 'converted' to KickAss a couple of years ago. It's my preferred cross-assembler for 6502 now, and well worth the effort of doing the work necessary to shift from DASM (or other) syntax.
  
  – Eight-Bit Guru
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Do you know anything about the age of the source? It could narrow down the possibilities. Also comments might give some clues to those who knows the assembler.
  
  – UncleBod
  16 hours ago
  

  
  
  
  

add a comment | 

9

I found some 6502 assembler code for a Commodore 64 program that uses meta commands like #include "foobar", define the address to be assembled to via *=$1234 and define labels without a colon. Comments are marked with a leading ;, and the syntax allows for specifying characters as constants such as in lda #'A'.

Which assembler programs have this kind of syntax and could be used to assemble the file?

I already know that

• 
  ca65 assembler uses keywords like .import and .export but not #include. And ca65 requires a colon after a label definition


• 
  dasm assembler files define the start address with the org directive, but not with *=
  


• 
  kickass assembler has different comment format


• 
  64tass does not know the includekeyword

so it is none of the above (I tried and the build failed).

commodore-64 assembly 6502

share|improve this question

edited 16 hours ago

Peter B.

asked 17 hours ago

Peter B.Peter B.

784212

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  So far it might be safe to assume you're looking fro an 6502 assembler, but what computer?
  
  – Raffzahn
  17 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  It is for a C64, I added it to the description.
  
  – Peter B.
  17 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  I suggest ignoring #include and any other C preprocessor like directive, and assume the source code you're looking at meant to handled by passing the source though a C preprocessor before being assembled. The GNU Assembler doesn't support C preprocessing directives, but you'll find a lot of code written for it that uses them anyways.
  
  – Ross Ridge
  17 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Having used DASM extensively for 15 years, I 'converted' to KickAss a couple of years ago. It's my preferred cross-assembler for 6502 now, and well worth the effort of doing the work necessary to shift from DASM (or other) syntax.
  
  – Eight-Bit Guru
  16 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Do you know anything about the age of the source? It could narrow down the possibilities. Also comments might give some clues to those who knows the assembler.
  
  – UncleBod
  16 hours ago
  

  
  
  
  

add a comment | 

I found some 6502 assembler code for a Commodore 64 program that uses meta commands like #include "foobar", define the address to be assembled to via *=$1234 and define labels without a colon. Comments are marked with a leading ;, and the syntax allows for specifying characters as constants such as in lda #'A'.

Which assembler programs have this kind of syntax and could be used to assemble the file?

I already know that

• 
  ca65 assembler uses keywords like .import and .export but not #include. And ca65 requires a colon after a label definition


• 
  dasm assembler files define the start address with the org directive, but not with *=
  


• 
  kickass assembler has different comment format


• 
  64tass does not know the includekeyword

so it is none of the above (I tried and the build failed).

commodore-64 assembly 6502

share|improve this question

edited 16 hours ago

Peter B.

asked 17 hours ago

Peter B.Peter B.

784212

share|improve this question

edited 16 hours ago

Peter B.

asked 17 hours ago

Peter B.Peter B.

784212

share|improve this question

edited 16 hours ago

Peter B.

asked 17 hours ago

Peter B.Peter B.

784212

asked 17 hours ago

Peter B.Peter B.

784212

asked 17 hours ago

Peter B.Peter B.

784212

1 Answer
1

active

oldest

votes

12

I think it's xa (xa65):

• ☑ #include "foobar"
  


• ☑ define the address to be assembled to via *=$1234
  


• ☑ define labels without a colon
  


• ☑ Comments are marked with a leading ;
  


• ☑ specifying characters as constants such as in lda #'A' — the example given in the manual uses double quotes (lda #"A"): is that a disqualifier?

share|improve this answer

answered 15 hours ago

scrussscruss

7,00111348

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I just had a chat with André Fachat, the original author, and he's pretty sure that xa65 makes a good match - including the single quote part, which he double checked in source. So I guess Scruss hit it.
  
  – Raffzahn
  15 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  I tried xa and it threw an error on a command ".pet". Googling that led me to the right assembler, it was DreamAss. Thanks a lot for the idea with xa helped me find it!
  
  – Peter B.
  15 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  ah, you never mentioned the .pet bit. Glad you found your assembler, even if it has a truly terrible name …
  
  – scruss
  12 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @PeterB. what is .pet? For the Commodore PET? You said the source is for the C64?
  
  – Wilson
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Wilson - .pet seems to be the directive in DreamAss to include the following bytes in [PETSCII ](en.wikipedia.org/wiki/PETSCII), which was common to most of the C= 8-bits
  
  – scruss
  2 hours ago
  

  
  
  
  

add a comment | 

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12

I think it's xa (xa65):

• ☑ #include "foobar"
  


• ☑ define the address to be assembled to via *=$1234
  


• ☑ define labels without a colon
  


• ☑ Comments are marked with a leading ;
  


• ☑ specifying characters as constants such as in lda #'A' — the example given in the manual uses double quotes (lda #"A"): is that a disqualifier?

share|improve this answer

answered 15 hours ago

scrussscruss

7,00111348

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I just had a chat with André Fachat, the original author, and he's pretty sure that xa65 makes a good match - including the single quote part, which he double checked in source. So I guess Scruss hit it.
  
  – Raffzahn
  15 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  I tried xa and it threw an error on a command ".pet". Googling that led me to the right assembler, it was DreamAss. Thanks a lot for the idea with xa helped me find it!
  
  – Peter B.
  15 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  ah, you never mentioned the .pet bit. Glad you found your assembler, even if it has a truly terrible name …
  
  – scruss
  12 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @PeterB. what is .pet? For the Commodore PET? You said the source is for the C64?
  
  – Wilson
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Wilson - .pet seems to be the directive in DreamAss to include the following bytes in [PETSCII ](en.wikipedia.org/wiki/PETSCII), which was common to most of the C= 8-bits
  
  – scruss
  2 hours ago
  

  
  
  
  

add a comment | 

12

I think it's xa (xa65):

• ☑ #include "foobar"
  


• ☑ define the address to be assembled to via *=$1234
  


• ☑ define labels without a colon
  


• ☑ Comments are marked with a leading ;
  


• ☑ specifying characters as constants such as in lda #'A' — the example given in the manual uses double quotes (lda #"A"): is that a disqualifier?

share|improve this answer

answered 15 hours ago

scrussscruss

7,00111348

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I just had a chat with André Fachat, the original author, and he's pretty sure that xa65 makes a good match - including the single quote part, which he double checked in source. So I guess Scruss hit it.
  
  – Raffzahn
  15 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  I tried xa and it threw an error on a command ".pet". Googling that led me to the right assembler, it was DreamAss. Thanks a lot for the idea with xa helped me find it!
  
  – Peter B.
  15 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  ah, you never mentioned the .pet bit. Glad you found your assembler, even if it has a truly terrible name …
  
  – scruss
  12 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @PeterB. what is .pet? For the Commodore PET? You said the source is for the C64?
  
  – Wilson
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Wilson - .pet seems to be the directive in DreamAss to include the following bytes in [PETSCII ](en.wikipedia.org/wiki/PETSCII), which was common to most of the C= 8-bits
  
  – scruss
  2 hours ago
  

  
  
  
  

add a comment | 

I think it's xa (xa65):

• ☑ #include "foobar"
  


• ☑ define the address to be assembled to via *=$1234
  


• ☑ define labels without a colon
  


• ☑ Comments are marked with a leading ;
  


• ☑ specifying characters as constants such as in lda #'A' — the example given in the manual uses double quotes (lda #"A"): is that a disqualifier?

share|improve this answer

answered 15 hours ago

scrussscruss

7,00111348

share|improve this answer

answered 15 hours ago

scrussscruss

7,00111348

answered 15 hours ago

scrussscruss

7,00111348

answered 15 hours ago

scrussscruss

7,00111348