diff options
| author | Aleksandar Markovic <amarkovic@wavecomp.com> | 2018-12-26 18:41:23 +0100 |
|---|---|---|
| committer | Aleksandar Markovic <amarkovic@wavecomp.com> | 2019-01-03 17:52:52 +0100 |
| commit | dffcf177dcfb789118f4eb519e088435d62ae42d (patch) | |
| tree | 1a84fc996edbfb50a6976439531e8da6e0b3c02e /disas/nanomips.cpp | |
| parent | 68d80fd58f374ed077f343e1397239717fea262e (diff) | |
disas: nanoMIPS: Comment the decoder of 'gpr1' gpr encoding type
Comment the decoder of 'gpr1' gpr encoding type in nanoMIPS
disassembler.
Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Diffstat (limited to 'disas/nanomips.cpp')
| -rw-r--r-- | disas/nanomips.cpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/disas/nanomips.cpp b/disas/nanomips.cpp index 6f15821403..23556b4fc6 100644 --- a/disas/nanomips.cpp +++ b/disas/nanomips.cpp @@ -389,6 +389,27 @@ uint64 NMD::decode_gpr_gpr3_src_store(uint64 d) } +/* + * NMD::decode_gpr_gpr1() - decoder for 'gpr1' gpr encoding type + * + * Map a 1-bit code to the 5-bit register space according to this pattern: + * + * 1 0 + * | | + * | | + * | └---------------------┐ + * └---------------------┐ | + * | | + * | | + * | | + * | | + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * 3 2 1 0 + * + * Used in handling following instruction: + * + * - MOVE.BALC + */ uint64 NMD::decode_gpr_gpr1(uint64 d) { static uint64 register_list[] = { 4, 5 }; |