[sdcc-devel] [ sdcc-Bugs-1498479 ] sdcc Z80port math library update

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Bugs item #1498479, was opened at 2006-05-31 16:10
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Category: z80 port
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Bing (hbingal)
Assigned to: Nobody/Anonymous (nobody)
Summary: sdcc Z80port math library update

Initial Comment:
SDCC version: 
mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/
ds400/hc80 2.5.6 # <May 16 2005> <MINGW32>

I would like to follow up on the report #1497322. But 
since I don't know how to do it, I am submitting this 
new thread.
I downloaded one of the latest version. Now as you 
said, the file frexpf.c and ldexpf.c can be compiled 
with no problem. I compiled most of the missing 
files, then put the *.asm and *.o file in 
the /lib/z80 directory. After that, I add the 
following lines to the z80.lib file
--------------------
fabsf.o
sincosf.o
sinf.o
cosf.o
errno.o
frexpf.o
ldexpf.o
asincosf.o
asinf.o
acosf.o
sincoshf.o
sinhf.o
coshf.o
tanhf.o
tancotf.o
tanf.o
cotf.o
atanf.o
atan2f.o
expf.o
logf.o
log10f.o
ceilf.o
floorf.o
modff.o
powf.o
sqrtf.o
time.o
-------------------
Now I can compile my own C code using the math 
library with no compiler error report.
But when I run the actual program on my Z80 
simulator, only expf function is working correctly. I 
checked the actual execution, only to find out that 
some of the instructions are trying to write into the 
code area in the ram, which corrupts the whole 
program.
I have attached a C program with all the compiled 
files. Please let me know if you can find out what 
exactly the problem is.
Thanks.


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