From: Aleksandar Markovic <amarkovic@wavecomp.com>
Date: Wed, 28 Aug 2019 16:26:39 +0000 (+0200)
Subject: target/mips: Clean up handling of CP0 register 14
X-Git-Tag: v4.2.0-rc0~197^2~16
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=35e4b54d90b07736d24d736c50f236231cde929f;p=thirdparty%2Fqemu.git

target/mips: Clean up handling of CP0 register 14

Clean up handling of CP0 register 14.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-16-git-send-email-aleksandar.markovic@rt-rk.com>
---

diff --git a/target/mips/cpu.h b/target/mips/cpu.h
index 4fce05ae135..2a9c6d5bd23 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 4da08e19297..efedced1e28 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;