Re: [B2-devel] Still same crash/problem

[Gwenole B. <gb...@di...>]

>> In the generated Makefile, change all occurrences of $(OBJ_DIR)/cpuopti
>> used in any cpufast?.s: rule with a cat. i.e. Don't use the cpuopti 
>> pass.
>
> I'm affraid I don't understand you well, could you give me an example 
> from
> what to what to change please?

Sorry, I don't have the Makefile handy but there are rules looking as:

cpufast5.s: <dependencies>
	<generation of cputmp5.s>
	$(OBJ_DIR)/cpuopti < cputmp5.s >$@ || ...
	rm -f cputmp5.s

Replace $(OBJ_DIR)/cpuopti with a simple "cat" so that cpuopti is not 
used. Indeed, it could be that cpuopti removes too many instructions 
nowadays or registers are not properly saved in newcpu/m68k_run_1() 
before the call to the instruction handler.

Anyway, I will probably get rid of cpuopti for B2 1.0 if the JIT 
compiler were to be integrated.

BTW, please also consider the use of gcc3, for example.

> BTW: Any chance that the JIT will be merge into the 1.0 branch?

There are currently 3 problems (not necessarily JIT-related):

- B2/JIT crashes just after the FPU tests from Speedometer 3.x under 
MacOS 8.x on a Pentium III but not on a K6-2 for example.

- The APD (Apple Personal Diagnostics) crash at start in either version 
of B2 (JIT or non-JIT) and either fpu core (original UAE, "IEEE", x86 
optimized) in 68040 emulation mode but not in 68030+FPU.

- The problem you are facing right now. :-)

Once those are fixed, we can consider the integration. Note that the 
latest B2/JIT is actually merged with the core from AmigaXL/Amithlon 
from mid/late December 2001. i.e. probably production-quality.

Bye,
Gwenole.