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Forums > C64 Coding > Converting ACME code to Kick Assembler
2016-06-19 03:24
Pixman
Account closed

Registered: Dec 2001
Posts: 42
Converting ACME code to Kick Assembler

In this code there are some confusing lines (since there are no proper ACME manuals):
http://codebase64.org/doku.php?id=base:double_irq
lda #$00 ;Reload A,X,and Y
reseta1 = *-1 ;registers
ldx #$00
resetx1 = *-1
ldy #$00
resety1 = *-1



Someone on #c-64 told me = is for the current Program Counter.

But there is no equivalent to this in Kick Assembler.

Solve it with branches?

I seriously have no idea how to fix this problem.

Any suggestions?
Tnx,
Pix
 
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2016-06-22 17:32
chatGPZ

Registered: Dec 2001
Posts: 11386
hooray for antioptimization techniques :o)
2016-06-22 17:40
Burglar

Registered: Dec 2004
Posts: 1101
no sane coder would place their table at $10ff ;)

and, yes, thank fuck for edit :)
2016-06-22 17:42
Oswald

Registered: Apr 2002
Posts: 5094
"This immediately parses, in my head, as self modifying code. No need for assembler-masturbation"

+100000000
2016-06-22 17:43
Compyx

Registered: Jan 2005
Posts: 631
I'm sure this can be optimized even further:

; // \1 is arg 0
.macro inc_mem {
    .if (code_or_table_crosses_page(\1) {
       .macro bar {
          inc \1 + 1
          bne +
          inc \1 + 2
     } else {
        .macro bar {
           inc \1 + 1
     }
     return bar;
}


All I need to do now is figure out the `code_or_table_crosses_page` function/macro.
2016-06-22 17:44
Compyx

Registered: Jan 2005
Posts: 631
Quote: no sane coder would place their table at $10ff ;)

and, yes, thank fuck for edit :)


I would, unknowingly, which things like .align solve, one of the actual useful extensions to TA
2016-06-22 19:58
ChristopherJam

Registered: Aug 2004
Posts: 1409
.align? Bah, all you need is .dsb <-*,0 ;-)
2016-06-22 20:12
Compyx

Registered: Jan 2005
Posts: 631
Looks like that just fills unused mem with 00. My assembler optimizes NOP's and BIT $EA away for shorter and faster code, so BRK would just confuse it.
2016-06-22 20:29
chatGPZ

Registered: Dec 2001
Posts: 11386
Quote:
My assembler optimizes NOP's and BIT $EA away for shorter and faster code

sounds like a great feature to have - enabled by default!
2016-06-22 20:46
Perplex

Registered: Feb 2009
Posts: 255
Quoting ChristopherJam
.dsb <-*,0 ;-)

What I like about this one is that it assembles just fine with the smiley included. Unless you're using KA of course. // Insert apropriate smiley here
2016-06-22 21:29
chatGPZ

Registered: Dec 2001
Posts: 11386
Quote:
What I like about this one is that it assembles just fine with the smiley included. Unless you're using KA of course.

//O\\
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