[Qemu-devel] [PULL 14/31] target/mips: Clean up handling of CP0 register 13

[Aleksandar Markovic <aleksandar.markovic@rt-rk.com>]

From: Aleksandar Markovic <amarkovic@wavecomp.com>

Clean up handling of CP0 register 13.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-15-git-send-email-aleksandar.markovic@rt-rk.com>
---
 target/mips/cpu.h       | 2 ++
 target/mips/translate.c | 8 ++++----
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/target/mips/cpu.h b/target/mips/cpu.h
index 061effb..4fce05a 100644
--- a/target/mips/cpu.h
+++ b/target/mips/cpu.h
@@ -357,6 +357,8 @@ typedef struct mips_def_t mips_def_t;
 #define CP0_REG12__GTOFFSET        7
 /* CP0 Register 13 */
 #define CP0_REG13__CAUSE           0
+#define CP0_REG13__VIEW_RIPL       4
+#define CP0_REG13__NESTEDEXC       5
 /* CP0 Register 14 */
 #define CP0_REG14__EPC             0
 /* CP0 Register 15 */
diff --git a/target/mips/translate.c b/target/mips/translate.c
index fb9c719..4da08e1 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -7202,7 +7202,7 @@ static void gen_mfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
         break;
     case CP0_REGISTER_13:
         switch (sel) {
-        case 0:
+        case CP0_REG13__CAUSE:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Cause));
             register_name = "Cause";
             break;
@@ -7928,7 +7928,7 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
         break;
     case CP0_REGISTER_13:
         switch (sel) {
-        case 0:
+        case CP0_REG13__CAUSE:
             save_cpu_state(ctx, 1);
             gen_helper_mtc0_cause(cpu_env, arg);
             /*
@@ -8677,7 +8677,7 @@ static void gen_dmfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
         break;
     case CP0_REGISTER_13:
         switch (sel) {
-        case 0:
+        case CP0_REG13__CAUSE:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Cause));
             register_name = "Cause";
             break;
@@ -9391,7 +9391,7 @@ static void gen_dmtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
         break;
     case CP0_REGISTER_13:
         switch (sel) {
-        case 0:
+        case CP0_REG13__CAUSE:
             save_cpu_state(ctx, 1);
             gen_helper_mtc0_cause(cpu_env, arg);
             /*
-- 
2.7.4