[Qemu-devel] [PULL 15/31] target/mips: Clean up handling of CP0 register 14

[Aleksandar Markovic]

From: Aleksandar Markovic <address@hidden>

Clean up handling of CP0 register 14.

Reviewed-by: Aleksandar Rikalo <address@hidden>
Signed-off-by: Aleksandar Markovic <address@hidden>
Message-Id: <address@hidden>
---
 target/mips/cpu.h       | 1 +
 target/mips/translate.c | 8 ++++----
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/target/mips/cpu.h b/target/mips/cpu.h
index 4fce05a..2a9c6d5 100644
--- a/target/mips/cpu.h
+++ b/target/mips/cpu.h
@@ -361,6 +361,7 @@ typedef struct mips_def_t mips_def_t;
 #define CP0_REG13__NESTEDEXC       5
 /* CP0 Register 14 */
 #define CP0_REG14__EPC             0
+#define CP0_REG14__NESTEDEPC       2
 /* CP0 Register 15 */
 #define CP0_REG15__PRID            0
 #define CP0_REG15__EBASE           1
diff --git a/target/mips/translate.c b/target/mips/translate.c
index 4da08e1..efedced 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -7212,7 +7212,7 @@ static void gen_mfc0(DisasContext *ctx, TCGv arg, int 
reg, int sel)
         break;
     case CP0_REGISTER_14:
         switch (sel) {
-        case 0:
+        case CP0_REG14__EPC:
             tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUMIPSState, CP0_EPC));
             tcg_gen_ext32s_tl(arg, arg);
             register_name = "EPC";
@@ -7946,7 +7946,7 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int 
reg, int sel)
         break;
     case CP0_REGISTER_14:
         switch (sel) {
-        case 0:
+        case CP0_REG14__EPC:
             tcg_gen_st_tl(arg, cpu_env, offsetof(CPUMIPSState, CP0_EPC));
             register_name = "EPC";
             break;
@@ -8687,7 +8687,7 @@ static void gen_dmfc0(DisasContext *ctx, TCGv arg, int 
reg, int sel)
         break;
     case CP0_REGISTER_14:
         switch (sel) {
-        case 0:
+        case CP0_REG14__EPC:
             tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUMIPSState, CP0_EPC));
             register_name = "EPC";
             break;
@@ -9409,7 +9409,7 @@ static void gen_dmtc0(DisasContext *ctx, TCGv arg, int 
reg, int sel)
         break;
     case CP0_REGISTER_14:
         switch (sel) {
-        case 0:
+        case CP0_REG14__EPC:
             tcg_gen_st_tl(arg, cpu_env, offsetof(CPUMIPSState, CP0_EPC));
             register_name = "EPC";
             break;
-- 
2.7.4