haraldwolff/qemu-patch-raspberry4
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Fix RDHWR handling. Code formatting. Don't use *_direct versions to raise

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exceptions.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2611 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-04-05 23:16:25 +00:00
parent f7cfb2a176
commit 1579a72ec5
2 changed files with 136 additions and 97 deletions
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68
target-mips/op.c
View file

@ -336,7 +336,7 @@ void op_addo (void)
T0 = (int32_t)T0 + (int32_t)T1;
if (((tmp ^ T1 ^ (-1)) & (T0 ^ T1)) >> 31) {
/* operands of same sign, result different sign */
CALL_FROM_TB1(do_raise_exception_direct, EXCP_OVERFLOW);
CALL_FROM_TB1(do_raise_exception, EXCP_OVERFLOW);
}
T0 = (int32_t)T0;
RETURN();
@ -356,7 +356,7 @@ void op_subo (void)
T0 = (int32_t)T0 - (int32_t)T1;
if (((tmp ^ T1) & (tmp ^ T0)) >> 31) {
/* operands of different sign, first operand and result different sign */
CALL_FROM_TB1(do_raise_exception_direct, EXCP_OVERFLOW);
CALL_FROM_TB1(do_raise_exception, EXCP_OVERFLOW);
}
T0 = (int32_t)T0;
RETURN();
@ -402,7 +402,7 @@ void op_daddo (void)
T0 += T1;
if (((tmp ^ T1 ^ (-1)) & (T0 ^ T1)) >> 63) {
/* operands of same sign, result different sign */
CALL_FROM_TB1(do_raise_exception_direct, EXCP_OVERFLOW);
CALL_FROM_TB1(do_raise_exception, EXCP_OVERFLOW);
}
RETURN();
}
@ -421,7 +421,7 @@ void op_dsubo (void)
T0 = (int64_t)T0 - (int64_t)T1;
if (((tmp ^ T1) & (tmp ^ T0)) >> 63) {
/* operands of different sign, first operand and result different sign */
CALL_FROM_TB1(do_raise_exception_direct, EXCP_OVERFLOW);
CALL_FROM_TB1(do_raise_exception, EXCP_OVERFLOW);
}
RETURN();
}
@ -1650,7 +1650,7 @@ void op_cp0_enabled(void)
{
if (!(env->CP0_Status & (1 << CP0St_CU0)) &&
(env->hflags & MIPS_HFLAG_UM)) {
CALL_FROM_TB2(do_raise_exception_direct_err, EXCP_CpU, 0);
CALL_FROM_TB2(do_raise_exception_err, EXCP_CpU, 0);
}
RETURN();
}
@ -1658,7 +1658,7 @@ void op_cp0_enabled(void)
void op_cp1_enabled(void)
{
if (!(env->CP0_Status & (1 << CP0St_CU1))) {
CALL_FROM_TB2(do_raise_exception_direct_err, EXCP_CpU, 1);
CALL_FROM_TB2(do_raise_exception_err, EXCP_CpU, 1);
}
RETURN();
}
@ -2063,7 +2063,7 @@ void op_ei (void)
void op_trap (void)
{
if (T0) {
CALL_FROM_TB1(do_raise_exception_direct, EXCP_TRAP);
CALL_FROM_TB1(do_raise_exception, EXCP_TRAP);
}
RETURN();
}
@ -2116,37 +2116,67 @@ void op_deret (void)
void op_rdhwr_cpunum(void)
{
if (env->CP0_HWREna & (1 << 0))
T0 = env->CP0_EBase & 0x2ff;
if (!(env->hflags & MIPS_HFLAG_UM) ||
(env->CP0_HWREna & (1 << 0)) ||
(env->CP0_Status & (1 << CP0St_CU0)))
T0 = env->CP0_EBase & 0x3ff;
else
CALL_FROM_TB1(do_raise_exception_direct, EXCP_RI);
CALL_FROM_TB1(do_raise_exception, EXCP_RI);
RETURN();
}
void op_rdhwr_synci_step(void)
{
if (env->CP0_HWREna & (1 << 1))
T0 = env->SYNCI_Step;
if (!(env->hflags & MIPS_HFLAG_UM) ||
(env->CP0_HWREna & (1 << 1)) ||
(env->CP0_Status & (1 << CP0St_CU0)))
T0 = env->SYNCI_Step;
else
CALL_FROM_TB1(do_raise_exception_direct, EXCP_RI);
CALL_FROM_TB1(do_raise_exception, EXCP_RI);
RETURN();
}
void op_rdhwr_cc(void)
{
if (env->CP0_HWREna & (1 << 2))
T0 = env->CP0_Count;
if (!(env->hflags & MIPS_HFLAG_UM) ||
(env->CP0_HWREna & (1 << 2)) ||
(env->CP0_Status & (1 << CP0St_CU0)))
T0 = env->CP0_Count;
else
CALL_FROM_TB1(do_raise_exception_direct, EXCP_RI);
CALL_FROM_TB1(do_raise_exception, EXCP_RI);
RETURN();
}
void op_rdhwr_ccres(void)
{
if (env->CP0_HWREna & (1 << 3))
T0 = env->CCRes;
if (!(env->hflags & MIPS_HFLAG_UM) ||
(env->CP0_HWREna & (1 << 3)) ||
(env->CP0_Status & (1 << CP0St_CU0)))
T0 = env->CCRes;
else
CALL_FROM_TB1(do_raise_exception_direct, EXCP_RI);
CALL_FROM_TB1(do_raise_exception, EXCP_RI);
RETURN();
}
void op_rdhwr_unimpl30(void)
{
if (!(env->hflags & MIPS_HFLAG_UM) ||
(env->CP0_HWREna & (1 << 30)) ||
(env->CP0_Status & (1 << CP0St_CU0)))
T0 = 0;
else
CALL_FROM_TB1(do_raise_exception, EXCP_RI);
RETURN();
}
void op_rdhwr_unimpl31(void)
{
if (!(env->hflags & MIPS_HFLAG_UM) ||
(env->CP0_HWREna & (1 << 31)) ||
(env->CP0_Status & (1 << CP0St_CU0)))
T0 = 0;
else
CALL_FROM_TB1(do_raise_exception, EXCP_RI);
RETURN();
}

165
target-mips/translate.c
View file

@ -1762,7 +1762,7 @@ static void gen_mfc0 (DisasContext *ctx, int reg, int sel)
break;
default:
goto die;
}
}
break;
case 4:
switch (sel) {
@ -1776,7 +1776,7 @@ static void gen_mfc0 (DisasContext *ctx, int reg, int sel)
// break;
default:
goto die;
}
}
break;
case 5:
switch (sel) {
@ -1790,7 +1790,7 @@ static void gen_mfc0 (DisasContext *ctx, int reg, int sel)
break;
default:
goto die;
}
}
break;
case 6:
switch (sel) {
@ -1820,7 +1820,7 @@ static void gen_mfc0 (DisasContext *ctx, int reg, int sel)
// break;
default:
goto die;
}
}
break;
case 7:
switch (sel) {
@ -1830,7 +1830,7 @@ static void gen_mfc0 (DisasContext *ctx, int reg, int sel)
break;
default:
goto die;
}
}
break;
case 8:
switch (sel) {
@ -1861,7 +1861,7 @@ static void gen_mfc0 (DisasContext *ctx, int reg, int sel)
break;
default:
goto die;
}
}
break;
case 11:
switch (sel) {
@ -1914,7 +1914,7 @@ static void gen_mfc0 (DisasContext *ctx, int reg, int sel)
break;
default:
goto die;
}
}
break;
case 15:
switch (sel) {
@ -2521,7 +2521,7 @@ static void gen_mtc0 (DisasContext *ctx, int reg, int sel)
break;
default:
goto die;
}
}
break;
case 16:
switch (sel) {
@ -2955,7 +2955,7 @@ static void gen_dmfc0 (DisasContext *ctx, int reg, int sel)
break;
default:
goto die;
}
}
break;
case 4:
switch (sel) {
@ -4703,83 +4703,92 @@ static void decode_opc (CPUState *env, DisasContext *ctx)
}
break;
case OPC_SPECIAL3:
op1 = MASK_SPECIAL3(ctx->opcode);
switch (op1) {
case OPC_EXT:
case OPC_INS:
gen_bitops(ctx, op1, rt, rs, sa, rd);
break;
case OPC_BSHFL:
op2 = MASK_BSHFL(ctx->opcode);
switch (op2) {
case OPC_WSBH:
GEN_LOAD_REG_TN(T1, rt);
gen_op_wsbh();
break;
case OPC_SEB:
GEN_LOAD_REG_TN(T1, rt);
gen_op_seb();
break;
case OPC_SEH:
GEN_LOAD_REG_TN(T1, rt);
gen_op_seh();
break;
op1 = MASK_SPECIAL3(ctx->opcode);
switch (op1) {
case OPC_EXT:
case OPC_INS:
gen_bitops(ctx, op1, rt, rs, sa, rd);
break;
case OPC_BSHFL:
op2 = MASK_BSHFL(ctx->opcode);
switch (op2) {
case OPC_WSBH:
GEN_LOAD_REG_TN(T1, rt);
gen_op_wsbh();
break;
case OPC_SEB:
GEN_LOAD_REG_TN(T1, rt);
gen_op_seb();
break;
case OPC_SEH:
GEN_LOAD_REG_TN(T1, rt);
gen_op_seh();
break;
default: /* Invalid */
MIPS_INVAL("bshfl");
MIPS_INVAL("bshfl");
generate_exception(ctx, EXCP_RI);
break;
}
GEN_STORE_TN_REG(rd, T0);
break;
case OPC_RDHWR:
switch (rd) {
case 0:
gen_op_rdhwr_cpunum();
break;
case 1:
gen_op_rdhwr_synci_step();
break;
case 2:
gen_op_rdhwr_cc();
break;
case 3:
gen_op_rdhwr_ccres();
break;
case 29:
#if defined (CONFIG_USER_ONLY)
gen_op_tls_value ();
#else
generate_exception(ctx, EXCP_RI);
#endif
break;
case 30:
/* Implementation dependent */;
gen_op_rdhwr_unimpl30();
break;
case 31:
/* Implementation dependent */;
gen_op_rdhwr_unimpl31();
break;
default: /* Invalid */
MIPS_INVAL("rdhwr");
generate_exception(ctx, EXCP_RI);
break;
}
GEN_STORE_TN_REG(rd, T0);
break;
case OPC_RDHWR:
switch (rd) {
case 0:
gen_op_rdhwr_cpunum();
break;
case 1:
gen_op_rdhwr_synci_step();
break;
case 2:
gen_op_rdhwr_cc();
break;
case 3:
gen_op_rdhwr_ccres();
break;
#if defined (CONFIG_USER_ONLY)
case 29:
gen_op_tls_value ();
GEN_STORE_TN_REG(rt, T0);
break;
#endif
default: /* Invalid */
MIPS_INVAL("rdhwr");
generate_exception(ctx, EXCP_RI);
break;
}
GEN_STORE_TN_REG(rt, T0);
break;
#ifdef TARGET_MIPS64
case OPC_DEXTM ... OPC_DEXT:
case OPC_DINSM ... OPC_DINS:
gen_bitops(ctx, op1, rt, rs, sa, rd);
}
GEN_STORE_TN_REG(rt, T0);
break;
case OPC_DBSHFL:
op2 = MASK_DBSHFL(ctx->opcode);
switch (op2) {
case OPC_DSBH:
GEN_LOAD_REG_TN(T1, rt);
gen_op_dsbh();
break;
case OPC_DSHD:
GEN_LOAD_REG_TN(T1, rt);
gen_op_dshd();
break;
#ifdef TARGET_MIPS64
case OPC_DEXTM ... OPC_DEXT:
case OPC_DINSM ... OPC_DINS:
gen_bitops(ctx, op1, rt, rs, sa, rd);
break;
case OPC_DBSHFL:
op2 = MASK_DBSHFL(ctx->opcode);
switch (op2) {
case OPC_DSBH:
GEN_LOAD_REG_TN(T1, rt);
gen_op_dsbh();
break;
case OPC_DSHD:
GEN_LOAD_REG_TN(T1, rt);
gen_op_dshd();
break;
default: /* Invalid */
MIPS_INVAL("dbshfl");
generate_exception(ctx, EXCP_RI);
break;
}
GEN_STORE_TN_REG(rd, T0);
}
GEN_STORE_TN_REG(rd, T0);
#endif
default: /* Invalid */
MIPS_INVAL("special3");