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| author | Aleksandar Markovic | 2018-08-02 16:16:05 +0200 |
|---|---|---|
| committer | Aleksandar Markovic | 2018-08-24 17:51:59 +0200 |
| commit | 6bfa9f4c9cf24d6cfaaa227722e9cdcca1ad6fe9 (patch) | |
| tree | aa5fe9167c42981bce1c85a3e88b8b93a6f10055 /target/mips/translate.c | |
| parent | target/mips: Add placeholder and invocation of decode_nanomips_opc() (diff) | |
| download | qemu-6bfa9f4c9cf24d6cfaaa227722e9cdcca1ad6fe9.tar.gz qemu-6bfa9f4c9cf24d6cfaaa227722e9cdcca1ad6fe9.tar.xz qemu-6bfa9f4c9cf24d6cfaaa227722e9cdcca1ad6fe9.zip | |
target/mips: Add nanoMIPS decoding and extraction utilities
Add some basic utility functions and macros for nanoMIPS decoding
engine.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
Diffstat (limited to 'target/mips/translate.c')
| -rw-r--r-- | target/mips/translate.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/target/mips/translate.c b/target/mips/translate.c index 4184d91b7c..ab982cf6d6 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -16593,6 +16593,17 @@ enum { * */ + +/* extraction utilities */ + +#define NANOMIPS_EXTRACT_RD(op) ((op >> 7) & 0x7) +#define NANOMIPS_EXTRACT_RS(op) ((op >> 4) & 0x7) +#define NANOMIPS_EXTRACT_RS2(op) uMIPS_RS(op) +#define NANOMIPS_EXTRACT_RS1(op) ((op >> 1) & 0x7) +#define NANOMIPS_EXTRACT_RD5(op) ((op >> 5) & 0x1f) +#define NANOMIPS_EXTRACT_RS5(op) (op & 0x1f) + + static int decode_nanomips_opc(CPUMIPSState *env, DisasContext *ctx) { return 2; |