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target/mips: Clean up handling of CP0 register 4

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Clean up handling of CP0 register 4.

Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1567009614-12438-6-git-send-email-aleksandar.markovic@rt-rk.com>
This commit is contained in:
Aleksandar Markovic 2019-08-29 11:46:55 +02:00
parent acd3731632
commit 020fe37909
2 changed files with 22 additions and 16 deletions
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2
target/mips/cpu.h
View file

@ -305,7 +305,9 @@ typedef struct mips_def_t mips_def_t;
#define CP0_REG03__TCOPT 7
/* CP0 Register 04 */
#define CP0_REG04__CONTEXT 0
#define CP0_REG04__CONTEXTCONFIG 1
#define CP0_REG04__USERLOCAL 2
#define CP0_REG04__XCONTEXTCONFIG 3
#define CP0_REG04__DBGCONTEXTID 4
#define CP0_REG00__MMID 5
/* CP0 Register 05 */

36
target/mips/translate.c
View file

@ -6975,16 +6975,17 @@ static void gen_mfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
break;
case CP0_REGISTER_04:
switch (sel) {
case 0:
case CP0_REG04__CONTEXT:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUMIPSState, CP0_Context));
tcg_gen_ext32s_tl(arg, arg);
register_name = "Context";
break;
case 1:
/* gen_helper_mfc0_contextconfig(arg); - SmartMIPS ASE */
case CP0_REG04__CONTEXTCONFIG:
/* SmartMIPS ASE */
/* gen_helper_mfc0_contextconfig(arg); */
register_name = "ContextConfig";
goto cp0_unimplemented;
case 2:
case CP0_REG04__USERLOCAL:
CP0_CHECK(ctx->ulri);
tcg_gen_ld_tl(arg, cpu_env,
offsetof(CPUMIPSState, active_tc.CP0_UserLocal));
@ -7710,15 +7711,16 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
break;
case CP0_REGISTER_04:
switch (sel) {
case 0:
case CP0_REG04__CONTEXT:
gen_helper_mtc0_context(cpu_env, arg);
register_name = "Context";
break;
case 1:
// gen_helper_mtc0_contextconfig(cpu_env, arg); /* SmartMIPS ASE */
case CP0_REG04__CONTEXTCONFIG:
/* SmartMIPS ASE */
/* gen_helper_mtc0_contextconfig(arg); */
register_name = "ContextConfig";
goto cp0_unimplemented;
case 2:
case CP0_REG04__USERLOCAL:
CP0_CHECK(ctx->ulri);
tcg_gen_st_tl(arg, cpu_env,
offsetof(CPUMIPSState, active_tc.CP0_UserLocal));
@ -8455,15 +8457,16 @@ static void gen_dmfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
break;
case CP0_REGISTER_04:
switch (sel) {
case 0:
case CP0_REG04__CONTEXT:
tcg_gen_ld_tl(arg, cpu_env, offsetof(CPUMIPSState, CP0_Context));
register_name = "Context";
break;
case 1:
// gen_helper_dmfc0_contextconfig(arg); /* SmartMIPS ASE */
case CP0_REG04__CONTEXTCONFIG:
/* SmartMIPS ASE */
/* gen_helper_dmfc0_contextconfig(arg); */
register_name = "ContextConfig";
goto cp0_unimplemented;
case 2:
case CP0_REG04__USERLOCAL:
CP0_CHECK(ctx->ulri);
tcg_gen_ld_tl(arg, cpu_env,
offsetof(CPUMIPSState, active_tc.CP0_UserLocal));
@ -9168,15 +9171,16 @@ static void gen_dmtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
break;
case CP0_REGISTER_04:
switch (sel) {
case 0:
case CP0_REG04__CONTEXT:
gen_helper_mtc0_context(cpu_env, arg);
register_name = "Context";
break;
case 1:
// gen_helper_mtc0_contextconfig(cpu_env, arg); /* SmartMIPS ASE */
case CP0_REG04__CONTEXTCONFIG:
/* SmartMIPS ASE */
/* gen_helper_dmtc0_contextconfig(arg); */
register_name = "ContextConfig";
goto cp0_unimplemented;
case 2:
case CP0_REG04__USERLOCAL:
CP0_CHECK(ctx->ulri);
tcg_gen_st_tl(arg, cpu_env,
offsetof(CPUMIPSState, active_tc.CP0_UserLocal));