diff options
| author | Bruno Larsen (billionai) <bruno.larsen@eldorado.org.br> | 2021-05-12 11:08:03 -0300 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2021-05-19 10:30:28 +1000 |
| commit | c19940db0fd9e879c208ddabe103e0981bdd48a0 (patch) | |
| tree | 5157880636b3d3f8117fc0dd4c4996fa18048fe4 /target/ppc/cpu.c | |
| parent | 3e770bf7a9aa68c30aa04b8277811dbe0fcd3e2c (diff) | |
target/ppc: created ppc_{store,get}_vscr for generic vscr usage
Some functions unrelated to TCG use helper_m{t,f}vscr, so generic versions
of those functions were added to cpu.c, in preparation for compilation
without TCG
Signed-off-by: Bruno Larsen (billionai) <bruno.larsen@eldorado.org.br>
Message-Id: <20210512140813.112884-2-bruno.larsen@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target/ppc/cpu.c')
| -rw-r--r-- | target/ppc/cpu.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/target/ppc/cpu.c b/target/ppc/cpu.c index e501a7ff6f..cb794e9f4f 100644 --- a/target/ppc/cpu.c +++ b/target/ppc/cpu.c @@ -20,6 +20,7 @@ #include "qemu/osdep.h" #include "cpu.h" #include "cpu-models.h" +#include "fpu/softfloat-helpers.h" target_ulong cpu_read_xer(CPUPPCState *env) { @@ -45,3 +46,18 @@ void cpu_write_xer(CPUPPCState *env, target_ulong xer) (1ul << XER_OV) | (1ul << XER_CA) | (1ul << XER_OV32) | (1ul << XER_CA32)); } + +void ppc_store_vscr(CPUPPCState *env, uint32_t vscr) +{ + env->vscr = vscr & ~(1u << VSCR_SAT); + /* Which bit we set is completely arbitrary, but clear the rest. */ + env->vscr_sat.u64[0] = vscr & (1u << VSCR_SAT); + env->vscr_sat.u64[1] = 0; + set_flush_to_zero((vscr >> VSCR_NJ) & 1, &env->vec_status); +} + +uint32_t ppc_get_vscr(CPUPPCState *env) +{ + uint32_t sat = (env->vscr_sat.u64[0] | env->vscr_sat.u64[1]) != 0; + return env->vscr | (sat << VSCR_SAT); +} |