diff options
Diffstat (limited to 'target/riscv/csr.c')
| -rw-r--r-- | target/riscv/csr.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/target/riscv/csr.c b/target/riscv/csr.c index 5e7e7d16b8..5714147689 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -317,18 +317,6 @@ static int write_mstatus(CPURISCVState *env, int csrno, target_ulong val) mstatus = (mstatus & ~mask) | (val & mask); - /* Note: this is a workaround for an issue where mstatus.FS - does not report dirty after floating point operations - that modify floating point state. This workaround is - technically compliant with the RISC-V Privileged - specification as it is legal to return only off, or dirty. - at the expense of extra floating point save/restore. */ - - /* FP is always dirty or off */ - if (mstatus & MSTATUS_FS) { - mstatus |= MSTATUS_FS; - } - int dirty = ((mstatus & MSTATUS_FS) == MSTATUS_FS) | ((mstatus & MSTATUS_XS) == MSTATUS_XS); mstatus = set_field(mstatus, MSTATUS_SD, dirty); |