CodeWarrior Development ToolsのトピックRe: Modify the value of variable in assembly

Modify the value of variable in assembly

girichavana — Tue, 25 Mar 2014 11:38:47 GMT

Hello Support,

I am working on HCS08, with CW 10.1 assembly language programming.

I need support to write a assembly routine to modify the value of 32 bit variable.

Please support in this.

Regards

Giri

Re: Modify the value of variable in assembly

Wlodek_D_ — Tue, 25 Mar 2014 14:33:20 GMT

Hello,

Thank you for your post, however please consider moving it to the right community place (e.g. CodeWarrior Development Tools or 8-bit Microcontrollers) to get it visible for active members.

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Re: Modify the value of variable in assembly

ZhangJennie — Fri, 28 Mar 2014 03:27:05 GMT

Hi Giri,

I believe this is the same issue as service request 1-1314984694

CW for 8bit mcu assembly instruction doesn’t have a simple instruction that can modify the value of a 32bit variable. This is limited by the related register width.

See below code: it is to set 32bit variable temp_long as 0xaabbccdd

temp_long ds 4

… …

ldhx #$aabb

sthx temp_long

ldhx #$ccdd

sthx temp_long+2

Hope this helps!

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