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| author | Tom Musta <tommusta@gmail.com> | 2013-10-22 22:06:46 +1100 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2013-12-20 01:57:48 +0100 |
| commit | f9fc6d810f6777a253337ba050639d266e9a3538 (patch) | |
| tree | ffc2c6528caa3a1266862b5098876bfe6dfbf4af | |
| parent | 1f29871cb7518692cf5c1fa8c19b117c789ff7f0 (diff) | |
Add VSX Instruction Decoders
This patch adds decoders for the VSX fields XT, XS, XA, XB and
DM. The first four are split fields and a general helper for
these types of fields is also added.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
| -rw-r--r-- | target-ppc/translate.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 415f5d14e1..de2c764a81 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -366,6 +366,12 @@ static inline int32_t name(uint32_t opcode) \ return (int16_t)((opcode >> (shift)) & ((1 << (nb)) - 1)); \ } +#define EXTRACT_HELPER_SPLIT(name, shift1, nb1, shift2, nb2) \ +static inline uint32_t name(uint32_t opcode) \ +{ \ + return (((opcode >> (shift1)) & ((1 << (nb1)) - 1)) << nb2) | \ + ((opcode >> (shift2)) & ((1 << (nb2)) - 1)); \ +} /* Opcode part 1 */ EXTRACT_HELPER(opc1, 26, 6); /* Opcode part 2 */ @@ -480,6 +486,11 @@ static inline target_ulong MASK(uint32_t start, uint32_t end) return ret; } +EXTRACT_HELPER_SPLIT(xT, 0, 1, 21, 5); +EXTRACT_HELPER_SPLIT(xS, 0, 1, 21, 5); +EXTRACT_HELPER_SPLIT(xA, 2, 1, 16, 5); +EXTRACT_HELPER_SPLIT(xB, 1, 1, 11, 5); +EXTRACT_HELPER(DM, 8, 2); /*****************************************************************************/ /* PowerPC instructions table */ |