[sdcc-devel] [ sdcc-Bugs-3398143 ] z80 register spill kills code

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Bugs item #3398143, was opened at 2011-08-25 16:24
Message generated for change (Settings changed) made by enigmalee
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Category: None
Group: None
Status: Open
>Resolution: Duplicate
Priority: 5
Private: No
Submitted By: Lee Morrison (enigmalee)
Assigned to: Nobody/Anonymous (nobody)
Summary: z80 register spill kills code

Initial Comment:
[makefile included, but...]
sdcc3  -mz80 --nostdinc -I../include --nooverlay  --nogcse  --nolabelopt  --noinvariant  --noinduction --nojtbound  --noloopreverse --no-reg-params --no-peep -DUNBUFFERED_IO=1 -c cf_bug20110823.c

SDCC : z80/r2k/pic16/pic14/hc08 3.0.4 #6751 (Aug 23 2011) (CYGWIN)

You may want/need to "#define printnum(X) printf( "%d", (X) )"
Email: ljmorris-sf at softwareconceptsinc.net

Incorrect code is generated for the Z80 port.

sf_page_size is set to 0x0108 before the call to "cf_rdblk",
but the value passed in to cf_rdblk is not 0x0108.

In the generated code, the iy register does not get loaded
with the value in the word sf_page_size before being pushed
onto the stack.

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