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target/mips: Clean up handling of CP0 register 3

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Clean up handling of CP0 register 3.

Backports commit acd3731632c5737eaeb230d76fd55ce871a33439 from qemu
This commit is contained in:
Aleksandar Markovic 2019-11-18 22:42:15 -05:00 committed by Lioncash
parent 8644845898
commit d96b3d06c4
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GPG key ID: 4E3C3CC1031BA9C7
2 changed files with 11 additions and 10 deletions
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1
qemu/target/mips/cpu.h
View file

@ -301,6 +301,7 @@ typedef struct mips_def_t mips_def_t;
/* CP0 Register 03 */
#define CP0_REG03__ENTRYLO1 0
#define CP0_REG03__GLOBALNUM 1
#define CP0_REG03__TCOPT 7
/* CP0 Register 04 */
#define CP0_REG04__CONTEXT 0
#define CP0_REG04__USERLOCAL 2

20
qemu/target/mips/translate.c
View file

@ -6727,7 +6727,7 @@ static void gen_mfhc0(DisasContext *ctx, TCGv arg, int reg, int sel)
break;
case CP0_REGISTER_03:
switch (sel) {
case 0:
case CP0_REG03__ENTRYLO1:
CP0_CHECK(ctx->hflags & MIPS_HFLAG_ELPA);
gen_mfhc0_entrylo(ctx, arg, offsetof(CPUMIPSState, CP0_EntryLo1));
register_name = "EntryLo1";
@ -6810,7 +6810,7 @@ static void gen_mthc0(DisasContext *ctx, TCGv arg, int reg, int sel)
break;
case CP0_REGISTER_03:
switch (sel) {
case 0:
case CP0_REG03__ENTRYLO1:
CP0_CHECK(ctx->hflags & MIPS_HFLAG_ELPA);
tcg_gen_andi_tl(s, arg, arg, mask);
gen_mthc0_entrylo(ctx, arg, offsetof(CPUMIPSState, CP0_EntryLo1));
@ -7030,7 +7030,7 @@ static void gen_mfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
break;
case CP0_REGISTER_03:
switch (sel) {
case 0:
case CP0_REG03__ENTRYLO1:
{
TCGv_i64 tmp = tcg_temp_new_i64(tcg_ctx);
tcg_gen_ld_i64(tcg_ctx, tmp, tcg_ctx->cpu_env,
@ -7047,7 +7047,7 @@ static void gen_mfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
}
register_name = "EntryLo1";
break;
case 1:
case CP0_REG03__GLOBALNUM:
CP0_CHECK(ctx->vp);
gen_mfc0_load32(ctx, arg, offsetof(CPUMIPSState, CP0_GlobalNumber));
register_name = "GlobalNumber";
@ -7775,11 +7775,11 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
break;
case CP0_REGISTER_03:
switch (sel) {
case 0:
case CP0_REG03__ENTRYLO1:
gen_helper_mtc0_entrylo1(tcg_ctx, tcg_ctx->cpu_env, arg);
register_name = "EntryLo1";
break;
case 1:
case CP0_REG03__GLOBALNUM:
CP0_CHECK(ctx->vp);
/* ignored */
register_name = "GlobalNumber";
@ -8515,11 +8515,11 @@ static void gen_dmfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
break;
case CP0_REGISTER_03:
switch (sel) {
case 0:
case CP0_REG03__ENTRYLO1:
tcg_gen_ld_tl(tcg_ctx, arg, tcg_ctx->cpu_env, offsetof(CPUMIPSState, CP0_EntryLo1));
register_name = "EntryLo1";
break;
case 1:
case CP0_REG03__GLOBALNUM:
CP0_CHECK(ctx->vp);
gen_mfc0_load32(ctx, arg, offsetof(CPUMIPSState, CP0_GlobalNumber));
register_name = "GlobalNumber";
@ -9226,11 +9226,11 @@ static void gen_dmtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
break;
case CP0_REGISTER_03:
switch (sel) {
case 0:
case CP0_REG03__ENTRYLO1:
gen_helper_dmtc0_entrylo1(tcg_ctx, tcg_ctx->cpu_env, arg);
register_name = "EntryLo1";
break;
case 1:
case CP0_REG03__GLOBALNUM:
CP0_CHECK(ctx->vp);
/* ignored */
register_name = "GlobalNumber";