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| author | Greg Ungerer <gerg@uclinux.org> | 2015-06-19 23:43:25 +1000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-06-22 14:43:25 +0100 |
| commit | 2a8327e8a8288e301a2f01bc3ca2d465a3a4ca78 (patch) | |
| tree | 8346d2dfa2e4654286cebcb9559a2b3ff5a7b945 /target-m68k | |
| parent | 8c52f0cbba76310ad626e54996dbce08c7a8a820 (diff) | |
| download | qemu-2a8327e8a8288e301a2f01bc3ca2d465a3a4ca78.tar.gz | |
m68k: implement move to/from usp register instruction
Fill out the code support for the move to/from usp instructions. They are
being decoded, but there is no code to support there actions. So add it.
Current versions of Linux running on the ColdFire 5208 use these instructions.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Message-id: 1434721406-25288-3-git-send-email-gerg@uclinux.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-m68k')
| -rw-r--r-- | target-m68k/translate.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/target-m68k/translate.c b/target-m68k/translate.c index 4959b970ea..96d75bf956 100644 --- a/target-m68k/translate.c +++ b/target-m68k/translate.c @@ -1995,8 +1995,8 @@ DISAS_INSN(move_from_usp) gen_exception(s, s->pc - 2, EXCP_PRIVILEGE); return; } - /* TODO: Implement USP. */ - gen_exception(s, s->pc - 2, EXCP_ILLEGAL); + tcg_gen_ld_i32(AREG(insn, 0), cpu_env, + offsetof(CPUM68KState, sp[M68K_USP])); } DISAS_INSN(move_to_usp) @@ -2005,8 +2005,8 @@ DISAS_INSN(move_to_usp) gen_exception(s, s->pc - 2, EXCP_PRIVILEGE); return; } - /* TODO: Implement USP. */ - gen_exception(s, s->pc - 2, EXCP_ILLEGAL); + tcg_gen_st_i32(AREG(insn, 0), cpu_env, + offsetof(CPUM68KState, sp[M68K_USP])); } DISAS_INSN(halt) |