[sdcc-devel] [ sdcc-Bugs-1241835 ] Cast bug or subtraction bug

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Bugs item #1241835, was opened at 2005-07-20 14:55
Message generated for change (Comment added) made by epetrich
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Category: hc08 port
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Cast bug or subtraction bug

Initial Comment:
Hi.Look at this piece of code:

;PageOffset = (uint8_t)(Address-FLASH_GIVE_PAGE(Address)); 

lda 6,s
sta 1,s
lda 6,s
and #0xC0
sta 4,s
lda 5,s
sta 3,s
lda 4,s
lda 1,s
psha
sub 1,s

Variables Address and the result of FLASH_GIVE_PAGE
macro are 16
bit, variable PageOffset is 8 bit.When I try to cast
the 16 bit
result of subtraction to 8 bit variable there is a
mistake as you
can see.Very similar mistake was in 16 bit comparison bug.



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>Comment By: Erik Petrich (epetrich)
Date: 2005-07-22 17:14

Message:
Logged In: YES 
user_id=635249

Fixed in src/hc08/gen.c 1.37
(SDCC version 2.5.1 #1066)


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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=100599&aid=1241835&group_id=599