target/m68k: add chk and chk2

chk and chk2 compare a value to boundaries, and
trigger a CHK exception if the value is out of bounds.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180104012913.30763-8-laurent@vivier.eu>
This commit is contained in:
Laurent Vivier 2018-01-04 02:29:03 +01:00
parent d2f8fb8e7f
commit 8bf6cbaf39
6 changed files with 150 additions and 1 deletions

View file

@ -134,6 +134,7 @@ static void m68020_cpu_initfn(Object *obj)
m68k_set_feature(env, M68K_FEATURE_CAS);
m68k_set_feature(env, M68K_FEATURE_BKPT);
m68k_set_feature(env, M68K_FEATURE_RTD);
m68k_set_feature(env, M68K_FEATURE_CHK2);
}
#define m68030_cpu_initfn m68020_cpu_initfn
#define m68040_cpu_initfn m68020_cpu_initfn
@ -156,6 +157,7 @@ static void m68060_cpu_initfn(Object *obj)
m68k_set_feature(env, M68K_FEATURE_CAS);
m68k_set_feature(env, M68K_FEATURE_BKPT);
m68k_set_feature(env, M68K_FEATURE_RTD);
m68k_set_feature(env, M68K_FEATURE_CHK2);
}
static void m5208_cpu_initfn(Object *obj)