CodeWarrior for MCUのトピックAssembler Local Labels

Assembler Local Labels

matthewolson — Wed, 16 Dec 2015 15:09:40 GMT

Does the assembler for the CS08 devices offer a local label feature? for example, instead of having to track short loops with a loopx label, the user could assign a character to be the first one of the label and then that particular label would be unique between the non-local labels before and after the local label. If not, how do others create labels for short loops or branches in subroutines?

Thanks...ptp

Re: Assembler Local Labels

ZhangJennie — Thu, 17 Dec 2015 09:02:14 GMT

Hello,

from my understanding, CW for HCS08 assembly doesn't have this feature.

Have a great day,
Jennie Zhang

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Re: Assembler Local Labels

Leojunin — Fri, 18 Dec 2015 00:54:31 GMT

I do not know what you say. If your relocatable assembler programs, each tag is private within .asm file. If what you have is a repetitive loop routine, you can program it into a macro. When you call the macro each tag is configured not to be repeated using \ @. Example:

MyMacro MACRO ;clear registers

lda #\1

ldhx #\2

loop\@ clr 0, x

aix #1

dbnza loop\@

ENDM

;*************************************************

MyCode SECTION

nop

MyMacro 4, RAMStart

MyMacro 8, $230

nop

;*************************************************

;Generated code: green = macro expansion

MyCode SECTION

nop

MyMacro 4, RAMStart

lda #4

ldhx #$80

loop_00001 clr ,x

aix #1

dbnza loop_00001

MyMacro 8, $230

lda #8

ldhx #$230

loop_00002 clr ,x

aix #1

dbnza loop_00002

nop