| Message ID | 1394377867-7115-17-git-send-email-peter.maydell@linaro.org |
|---|---|
| State | New |
| Headers | show |
Hi, On Sun, 9 Mar 2014, Peter Maydell wrote: > diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c > index 6a3597d..2435c95 100644 > --- a/target-arm/translate-a64.c > +++ b/target-arm/translate-a64.c > @@ -9007,9 +9007,8 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) > case 0x19: /* FRINTM */ > case 0x38: /* FRINTP */ > case 0x39: /* FRINTZ */ > - case 0x58: /* FRINTA */ > need_rmode = true; > - rmode = extract32(opcode, 5, 2) | (extract32(opcode, 0, 1) << 1); > + rmode = extract32(opcode, 5, 1) | (extract32(opcode, 0, 1) << 1); > /* fall through */ > case 0x59: /* FRINTX */ > case 0x79: /* FRINTI */ > @@ -9019,6 +9018,15 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) > return; > } > break; > + case 0x58: /* FRINTA */ > + need_rmode = true; > + rmode = FPROUNDING_TIEAWAY; > + need_fpstatus = true; > + if (size == 3 && !is_q) { > + unallocated_encoding(s); > + return; > + } > + break; Merge the above into [15/16] ? Ciao, Michael.
On 10 March 2014 13:24, Michael Matz <matz@suse.de> wrote: > Hi, > > On Sun, 9 Mar 2014, Peter Maydell wrote: > >> diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c >> index 6a3597d..2435c95 100644 >> --- a/target-arm/translate-a64.c >> +++ b/target-arm/translate-a64.c >> @@ -9007,9 +9007,8 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) >> case 0x19: /* FRINTM */ >> case 0x38: /* FRINTP */ >> case 0x39: /* FRINTZ */ >> - case 0x58: /* FRINTA */ >> need_rmode = true; >> - rmode = extract32(opcode, 5, 2) | (extract32(opcode, 0, 1) << 1); >> + rmode = extract32(opcode, 5, 1) | (extract32(opcode, 0, 1) << 1); >> /* fall through */ >> case 0x59: /* FRINTX */ >> case 0x79: /* FRINTI */ >> @@ -9019,6 +9018,15 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) >> return; >> } >> break; >> + case 0x58: /* FRINTA */ >> + need_rmode = true; >> + rmode = FPROUNDING_TIEAWAY; >> + need_fpstatus = true; >> + if (size == 3 && !is_q) { >> + unallocated_encoding(s); >> + return; >> + } >> + break; > > Merge the above into [15/16] ? Yes, indeed. I obviously refreshed these FRINT changes into the wrong patch. thanks -- PMM
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index a387922..6af84f6 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -44,7 +44,7 @@ struct TranslationBlock; typedef struct TranslationBlock TranslationBlock; /* XXX: make safe guess about sizes */ -#define MAX_OP_PER_INSTR 208 +#define MAX_OP_PER_INSTR 266 #if HOST_LONG_BITS == 32 #define MAX_OPC_PARAM_PER_ARG 2 diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c index 6a3597d..2435c95 100644 --- a/target-arm/translate-a64.c +++ b/target-arm/translate-a64.c @@ -9007,9 +9007,8 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) case 0x19: /* FRINTM */ case 0x38: /* FRINTP */ case 0x39: /* FRINTZ */ - case 0x58: /* FRINTA */ need_rmode = true; - rmode = extract32(opcode, 5, 2) | (extract32(opcode, 0, 1) << 1); + rmode = extract32(opcode, 5, 1) | (extract32(opcode, 0, 1) << 1); /* fall through */ case 0x59: /* FRINTX */ case 0x79: /* FRINTI */ @@ -9019,6 +9018,15 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) return; } break; + case 0x58: /* FRINTA */ + need_rmode = true; + rmode = FPROUNDING_TIEAWAY; + need_fpstatus = true; + if (size == 3 && !is_q) { + unallocated_encoding(s); + return; + } + break; case 0x3c: /* URECPE */ case 0x3d: /* FRECPE */ case 0x56: /* FCVTXN, FCVTXN2 */
The ARM A64 decoder's worst case number of TCG ops per instruction is 266 (for insn 0x4c800000, a post-indexed ST4 multiple-structures store). Raise the MAX_OP_PER_INSTR define accordingly. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- include/exec/exec-all.h | 2 +- target-arm/translate-a64.c | 12 ++++++++++-- 2 files changed, 11 insertions(+), 3 deletions(-)