🚀 go-pugleaf

I have built GCC 2.2.2 on HPUX 8.02 on a HP9000-827. I have
managed to get a clean compile (stage1 stage2 stage3 and compare)
by playing some game. I have found two bugs in the assembly
code generated by the compiler.

The following program crashes with an illegal instruction trap:

int main()
{
	float a=0;
	a = a + 1;
}

The module enquire.c which generate float.h crash this way.
On the other hand, change float for double and all goes right.
So I rebuild the compiler, adding on the command line
"-Dfloat=double". Then I got a clean compile.

I start to compile a large CAD project, thinking that this
bug could be solve later (converting every float to double).

Doing so, after compiling a lot of code, I got another
problem. This time, it was flag by the assembler. It is related
to the number of parameter when generating the beginning of a function.
It generates and .export assembly statement:

  Argument 1 or 3 in FARG upper
	- lookahead = ARGW4=FR,RTNVAL=GR

The problem seems to happen with more than 4 parameters and
a combination of double and integer parameter.


I have ordered an assembly language reference manual. Maybe someone
have seen these problems. Any suggestion ?

Does a PA-RISC 1.1 can do single precision computation directly ?

Thanks in advance ?

-- 

--------------------------------------------------------
Jacques Gelinas (jack@solucor.uucp)
Today it's my opinion