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Add FAC_BIT macro to simplify correct testing for facility bits.

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git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12919
This commit is contained in:
Florian Krohm 2012-08-30 18:47:56 +00:00
parent 4f0dd9365a
commit 1bf0791db8
1 changed files with 15 additions and 10 deletions
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25
tests/s390x_features.c
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@ -190,6 +190,11 @@ static model_info *get_host(void)
return model;
}
/* Convenience macro that maps the facility bit number as given in the
Principles of Ops "facility indications" section to a bit mask */
#define FAC_BIT(x) (1ULL << (63 - (x)))
static int go(char *feature, char *cpu)
{
unsigned long long facilities;
@ -200,25 +205,25 @@ static int go(char *feature, char *cpu)
facilities = stfle();
if (strcmp(feature, "s390x-zarch") == 0 ) {
match = (facilities & (1ULL << 62) && (facilities & (1ULL << 61)));
match = (facilities & FAC_BIT(1)) && (facilities & FAC_BIT(2));
} else if (strcmp(feature, "s390x-n3") == 0 ) {
match = (facilities & (1ULL << 63));
match = facilities & FAC_BIT(0);
} else if (strcmp(feature, "s390x-stfle") == 0 ) {
match = (facilities & (1ULL << 56));
match = facilities & FAC_BIT(7);
} else if (strcmp(feature, "s390x-ldisp") == 0 ) {
match = (facilities & (1ULL << 45) && (facilities & (1ULL << 44)));
match = (facilities & FAC_BIT(18)) && (facilities & FAC_BIT(19));
} else if (strcmp(feature, "s390x-eimm") == 0 ) {
match = (facilities & (1ULL << 42));
match = facilities & FAC_BIT(21);
} else if (strcmp(feature, "s390x-stckf") == 0 ) {
match = (facilities & (1ULL << 38));
match = facilities & FAC_BIT(25);
} else if (strcmp(feature, "s390x-genins") == 0 ) {
match = (facilities & (1ULL << 29));
match = facilities & FAC_BIT(34);
} else if (strcmp(feature, "s390x-exrl") == 0 ) {
match = (facilities & (1ULL << 28));
match = facilities & FAC_BIT(35);
} else if (strcmp(feature, "s390x-etf3") == 0 ) {
match = (facilities & (1ULL << (63 - 30)));
match = facilities & FAC_BIT(30);
} else {
return 2; // Unrecognised feature.
return 2; // Unrecognised feature.
}
if (match == 0) return 1; // facility not provided