diff options
| author | Leon Alrae <leon.alrae@imgtec.com> | 2015-08-03 13:01:19 +0100 |
|---|---|---|
| committer | Leon Alrae <leon.alrae@imgtec.com> | 2015-08-04 11:10:20 +0100 |
| commit | 060ebfef1a09b58fb219b3769b72efb407515bf1 (patch) | |
| tree | ddc6736365baedf3620a29945edb33b7bfbad416 /target-mips | |
| parent | e95edefbd0559e1d0aa09549641b5d9af1f96fac (diff) | |
target-mips: fix semihosting for microMIPS R6
In semihosting mode the SDBBP 1 instructions should trigger UHI syscall,
but in QEMU this does not happen for recently added microMIPS R6.
Consequently bare metal microMIPS R6 programs supporting UHI will not run.
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-mips')
| -rw-r--r-- | target-mips/translate.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index d1de35ad30..e299643e04 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -13278,10 +13278,14 @@ static void gen_pool16c_r6_insn(DisasContext *ctx) break; case R6_SDBBP16: /* SDBBP16 */ - if (ctx->hflags & MIPS_HFLAG_SBRI) { - generate_exception(ctx, EXCP_RI); + if (is_uhi(extract32(ctx->opcode, 6, 4))) { + gen_helper_do_semihosting(cpu_env); } else { - generate_exception(ctx, EXCP_DBp); + if (ctx->hflags & MIPS_HFLAG_SBRI) { + generate_exception(ctx, EXCP_RI); + } else { + generate_exception(ctx, EXCP_DBp); + } } break; } |