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| author | Giacomo Travaglini <giacomo.travaglini@arm.com> | 2018-02-14 18:42:19 +0000 |
|---|---|---|
| committer | Giacomo Travaglini <giacomo.travaglini@arm.com> | 2018-02-20 13:30:02 +0000 |
| commit | 657d4054ea36e6af8959f2fa7bcfd79b7c887cfd (patch) | |
| tree | 935336ca8e5bbf1967dc8c41b671738683070daf | |
| parent | 803a8db53aae57d42bd2465c9284df91ed5e7641 (diff) | |
| download | gem5-657d4054ea36e6af8959f2fa7bcfd79b7c887cfd.tar.xz | |
arch-arm: HLT using immediate when checking for semihosting
HLT can use the immediate field when checking for semihosting,
rather than re-parsing it from the machInst variable.
Change-Id: I072cb100029da34d129b90c5d17e1728f9016c88
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/8369
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
| -rw-r--r-- | src/arch/arm/isa/insts/misc64.isa | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/arch/arm/isa/insts/misc64.isa b/src/arch/arm/isa/insts/misc64.isa index cf82ea3e4..17d8df10d 100644 --- a/src/arch/arm/isa/insts/misc64.isa +++ b/src/arch/arm/isa/insts/misc64.isa @@ -177,7 +177,7 @@ let {{ hltCode = ''' ThreadContext *tc = xc->tcBase(); - if (ArmSystem::haveSemihosting(tc) && bits(machInst, 20, 5) == 0xF000) { + if (ArmSystem::haveSemihosting(tc) && imm == 0xF000) { X0 = ArmSystem::callSemihosting64(tc, X0 & mask(32), X1); } else { // HLT instructions aren't implemented, so treat them as undefined |