My cc65 version of the compiler directory structure has changed

[+karri]

Due to my desire to use larger ROM's I did change the directory and cart logic on my old cc65 compiler.

In the old code the block field was 8 bit and it was followed by an unused byte that was usually $88 0r $00. In the current version the block field is 16 bits long. The high byte contains the highest address bits of the ROM.

 

These bits are driven by the CART1 read strobe and AUDIN.

 

Old projects need to set the content of this unused byte to 0. And it would be good to define the block field in the directory to be a .word instead of a .byte

 

[42bs]

Background info : $88 was the executable marker I did use past days for my LOS (Lynx Operating System).

[+karri]

14 hours ago, 42bs said:

Background info : $88 was the executable marker I did use past days for my LOS (Lynx Operating System).

Executable marker... In that case nobody will be missing it. It is gone now.

 

Once I get my 2MB cart debugged/working I might make a pull request to update the main cc65 for 2MB carts as well. The only problem is the automatic insertion of the 2nd boot loader. If an inserted file crosses the boundary that requires flipping AUDIN I could increment the pointer to the end of the block, insert a new copy on the bootloader and then continue with the files.

[OldAtAtari]

On 5/31/2022 at 4:40 PM, karri said:

Due to my desire to use larger ROM's I did change the directory and cart logic on my old cc65 compiler.

In the old code the block field was 8 bit and it was followed by an unused byte that was usually $88 0r $00. In the current version the block field is 16 bits long. The high byte contains the highest address bits of the ROM.

 

These bits are driven by the CART1 read strobe and AUDIN.

 

Old projects need to set the content of this unused byte to 0. And it would be good to define the block field in the directory to be a .word instead of a .byte

 

 

For those of us who still (STILL! 😞 ) haven't learned the details of how these things work, can you give a dumbed-down description of how to fix our setups to work with the revised compiler? How do I go about setting the unused byte to 0 and redefining the block field to .word? What directory is it in? 

I'm back in the programming game now, and I've created my environment with the Karri/nop90 template, which no longer compiles into a working *.lnx file. It's my fault for being out of it the hobby for so long.

 

As always, I'm stumbling on my own ignorance, and I'm humbled by you guys who create these systems and your patience to provide support to knuckleheads like me.

 

Thanks!

[OldAtAtari]

Disregard! @obschan and @MichelS helped me!

In my directory.s file, I needed to make the entry macro look like this:
 

.macro entry old_off, old_len, new_off, new_block, new_len, new_size, new_addr
new_off=old_off+old_len
new_block=new_off/__BLOCKSIZE__
new_len=new_size
	.word	new_block
	.word	(new_off & (__BLOCKSIZE__ - 1))
	.word	new_addr
	.word	new_len
.endmacro

 

Edited December 2, 2022 by OldAtAtari