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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>
This commit is contained in:
Aleksandar Markovic 2019-08-28 18:26:39 +02:00
parent e3c7559d89
commit 35e4b54d90
2 changed files with 5 additions and 4 deletions
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1
target/mips/cpu.h
View File

@ -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

8
target/mips/translate.c
View File

@ -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;