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3 Commits

Author SHA1 Message Date
Richard Henderson
722460652b fpu: Handle m68k extended precision denormals properly 
Motorola treats denormals with explicit integer bit set as
having unbiased exponent 0, unlike Intel which treats it as
having unbiased exponent 1 (more like all other IEEE formats
that have no explicit integer bit).

Add a flag on FloatFmt to differentiate the behaviour.

Reported-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 2023-09-16 14:57:16 +00:00
Richard Henderson
e105db0227 tests/tcg/m68k: Add trap.c 
Test various trap instructions: chk, div, trap, trapv, trapcc, ftrapcc,
and the signals and addresses that we expect from them.

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220602013401.303699-15-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
 2022-06-02 09:35:03 +02:00
Alex Bennée
21d71c8c41 tests/tcg: enable building for m68k 
As before, using Debian SID compilers.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
 2018-06-20 20:22:34 +01:00