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Author Topic: certainly a beginner question, sub ram_variable not possible  (Read 268 times)
sonflasch
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« on: November 07, 2019, 12:39:28 PM »

Hello @ all

I'm trying to change a subtraction in 551k file (adress 87A69E)

mov r4, plsol_w
sub r4,plgru_w  ->>> 22 F4 66 A6

change in
mov r4, plsol_w
sub r4, pu_w  ->> that would have to ->> 22 F4 8C 0A
I look for where pu_w is used fits 8C 0A is right, but it does not work.
I'm looking for a subtraction with pu_w .. there are too 8C 0A.
I do that in 551f where pu_w is also in the range of 382xxx it works fine.

can explain to me one why that does not work at 551k.
I try to explain it but I miss the knowledge?
or can someone give me a solution

many thanks
« Last Edit: November 07, 2019, 09:17:14 PM by sonflasch » Logged
fukenbroken
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mk4 1.8T AUM


« Reply #1 on: November 07, 2019, 06:35:54 PM »


Pu_w @384A8C
Short adressing cannot be applied to that offset
Use


extp #0E1h, #1 D7 40 E1 00
sub r4, pu_w 42 F5 8C 0A

or exts #38h etc
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sonflasch
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« Reply #2 on: November 07, 2019, 08:56:37 PM »

thanks... Grin Grin
another user has just written me too.

Now I just have to see how I get it in there. place is not free.


I will buy another book to learn more  Roll Eyes
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