[sdcc-devel] [ sdcc-Bugs-2805536 ] Assembly code comment cause Internal Error

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Bugs item #2805536, was opened at 2009-06-12 11:55
Message generated for change (Tracker Item Submitted) made by dfulab
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Category: z80 port
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: dfulab (dfulab)
Assigned to: Nobody/Anonymous (nobody)
Summary: Assembly code comment cause Internal Error

Initial Comment:
Version: SDCC 2.9.0 #5416 (Mar 22 2009) (MINGW32) for Z80

Source: fail.c (also attached)
--------------------------------------------------------------------------------------------------------------------------
void fail(void)
{
_asm
	ld	a,b		; != <-- this causes a compiler internal error
_endasm;
}
--------------------------------------------------------------------------------------------------------------------------

Compile with the following command line option will cause an internal error:
--------------------------------------------------------------------------------------------------------------------------
"C:\Program Files\SDCC\bin\sdcc" -mz80 -c fail.c
Cant find token ""
fail.c:5: error 9: FATAL Compiler Internal Error in file '/home/sdcc-builder/bui
ld/sdcc-build/orig/sdcc/src/SDCCasm.c' line number '110' : code generator intern
al error
Contact Author with source code
--------------------------------------------------------------------------------------------------------------------------

Comment:
In theory, everything between _asm and _endasm should pass into the assembler as is.

Seems like the compiler get confused with the C statement   != in the Z80 assembler comments field.
I think I have seen other C statements causes same problem. I found this out when I try to comment my inline assembly code with C code.


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[sdcc-devel] [ sdcc-Bugs-2805333 ] Inverting and casting bit argument to char causes SIGSEGV

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Bugs item #2805333, was opened at 2009-06-12 11:23
Message generated for change (Tracker Item Submitted) made by johan_mx
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Category: C-Front End
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Johan Hovold (johan_mx)
Assigned to: Nobody/Anonymous (nobody)
Summary: Inverting and casting bit argument to char causes SIGSEGV

Initial Comment:
Inverting and casting a bit argument to a char causes SDCC to segfault.

Note that casting to unsigned char (or signed int) works fine.

void f(void)
{
	extern void g(char);
	extern __bit b;

	g(!b);			/* Causes SDCC 2.9.0 to segfault.. */
}

$ sdcc  -mmcs51  --model-small -c -o bit_bug.rel bit_bug.c
Caught signal 11: SIGSEGV

SDCC : mcs51 2.9.0 #5416 (May  7 2009) (UNIX)


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