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| author | Alistair Francis <Alistair.Francis@wdc.com> | 2019-04-20 02:27:02 +0000 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@sifive.com> | 2019-05-24 12:09:24 -0700 |
| commit | 16fdb8ff64374ed51b246437e13043039a8eb9f9 (patch) | |
| tree | 5afac00fc51a01dbc66daf0f318516126c38d2cb /target/riscv/cpu_helper.c | |
| parent | 0a01f2eecba47a48c9d06e3fb9acbd2a8a842cfc (diff) | |
| download | qemu-16fdb8ff64374ed51b246437e13043039a8eb9f9.zip qemu-16fdb8ff64374ed51b246437e13043039a8eb9f9.tar.gz qemu-16fdb8ff64374ed51b246437e13043039a8eb9f9.tar.bz2 | |
target/riscv: Improve the scause logic
No functional change, just making the code easier to read.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'target/riscv/cpu_helper.c')
| -rw-r--r-- | target/riscv/cpu_helper.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c index 7318da2..c577a26 100644 --- a/target/riscv/cpu_helper.c +++ b/target/riscv/cpu_helper.c @@ -515,7 +515,7 @@ void riscv_cpu_do_interrupt(CPUState *cs) s = set_field(s, MSTATUS_SPP, env->priv); s = set_field(s, MSTATUS_SIE, 0); env->mstatus = s; - env->scause = cause | ~(((target_ulong)-1) >> async); + env->scause = cause | ((target_ulong)async << (TARGET_LONG_BITS - 1)); env->sepc = env->pc; env->sbadaddr = tval; env->pc = (env->stvec >> 2 << 2) + |