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authorEdgar E. Iglesias <edgar.iglesias@xilinx.com>2018-04-14 23:44:51 +0200
committerEdgar E. Iglesias <edgar.iglesias@xilinx.com>2018-05-29 09:35:14 +0200
commita1b48e3a3aa19d6e03b6c39cae4e915f5cceb028 (patch)
tree5f4713d3826dbf01c30dd6605765918fec4c5875 /target/microblaze
parentd248e1beac9a640c033cc7d3c3d494576a74bbc0 (diff)
target-microblaze: Implement MFSE EAR
Implement MFSE EAR to enable access to the upper part of EAR. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Diffstat (limited to 'target/microblaze')
-rw-r--r--target/microblaze/translate.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c
index 504db88890..7475003847 100644
--- a/target/microblaze/translate.c
+++ b/target/microblaze/translate.c
@@ -459,7 +459,7 @@ static void dec_msr(DisasContext *dc)
CPUState *cs = CPU(dc->cpu);
TCGv_i32 t0, t1;
unsigned int sr, rn;
- bool to, clrset;
+ bool to, clrset, extended;
sr = extract32(dc->imm, 0, 14);
to = extract32(dc->imm, 14, 1);
@@ -467,6 +467,9 @@ static void dec_msr(DisasContext *dc)
dc->type_b = 1;
if (to) {
dc->cpustate_changed = 1;
+ extended = extract32(dc->imm, 24, 1);
+ } else {
+ extended = extract32(dc->imm, 19, 1);
}
/* msrclr and msrset. */
@@ -559,6 +562,10 @@ static void dec_msr(DisasContext *dc)
msr_read(dc, cpu_R[dc->rd]);
break;
case SR_EAR:
+ if (extended) {
+ tcg_gen_extrh_i64_i32(cpu_R[dc->rd], cpu_SR[sr]);
+ break;
+ }
case SR_ESR:
case SR_FSR:
case SR_BTR: