OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

target-mips: signal RI Exception on DSP and Loongson instructions 

Move DSP and Loongson instruction to *_legacy functions as they have been
removed in R6.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Leon Alrae 2014-06-27 08:49:02 +01:00
parent 10dc65dbb8
commit fac5a07330
1 changed files with 98 additions and 97 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

195
target-mips/translate.c
View File

@ -14783,6 +14783,26 @@ static void decode_opc_special2_legacy(CPUMIPSState *env, DisasContext *ctx)
case OPC_MUL:
gen_arith(ctx, op1, rd, rs, rt);
break;
case OPC_DIV_G_2F:
case OPC_DIVU_G_2F:
case OPC_MULT_G_2F:
case OPC_MULTU_G_2F:
case OPC_MOD_G_2F:
case OPC_MODU_G_2F:
check_insn(ctx, INSN_LOONGSON2F);
gen_loongson_integer(ctx, op1, rd, rs, rt);
break;
#if defined(TARGET_MIPS64)
case OPC_DMULT_G_2F:
case OPC_DMULTU_G_2F:
case OPC_DDIV_G_2F:
case OPC_DDIVU_G_2F:
case OPC_DMOD_G_2F:
case OPC_DMODU_G_2F:
check_insn(ctx, INSN_LOONGSON2F);
gen_loongson_integer(ctx, op1, rd, rs, rt);
break;
#endif
default: /* Invalid */
MIPS_INVAL("special2_legacy");
generate_exception(ctx, EXCP_RI);
@ -14792,11 +14812,10 @@ static void decode_opc_special2_legacy(CPUMIPSState *env, DisasContext *ctx)
static void decode_opc_special2(CPUMIPSState *env, DisasContext *ctx)
{
int rs, rt, rd;
int rs, rd;
uint32_t op1;
rs = (ctx->opcode >> 21) & 0x1f;
rt = (ctx->opcode >> 16) & 0x1f;
rd = (ctx->opcode >> 11) & 0x1f;
op1 = MASK_SPECIAL2(ctx->opcode);
@ -14818,15 +14837,6 @@ static void decode_opc_special2(CPUMIPSState *env, DisasContext *ctx)
}
/* Treat as NOP. */
break;
case OPC_DIV_G_2F:
case OPC_DIVU_G_2F:
case OPC_MULT_G_2F:
case OPC_MULTU_G_2F:
case OPC_MOD_G_2F:
case OPC_MODU_G_2F:
check_insn(ctx, INSN_LOONGSON2F);
gen_loongson_integer(ctx, op1, rd, rs, rt);
break;
#if defined(TARGET_MIPS64)
case OPC_DCLO:
case OPC_DCLZ:
@ -14834,15 +14844,6 @@ static void decode_opc_special2(CPUMIPSState *env, DisasContext *ctx)
check_mips_64(ctx);
gen_cl(ctx, op1, rd, rs);
break;
case OPC_DMULT_G_2F:
case OPC_DMULTU_G_2F:
case OPC_DDIV_G_2F:
case OPC_DDIVU_G_2F:
case OPC_DMOD_G_2F:
case OPC_DMODU_G_2F:
check_insn(ctx, INSN_LOONGSON2F);
gen_loongson_integer(ctx, op1, rd, rs, rt);
break;
#endif
default:
if (ctx->insn_flags & ISA_MIPS32R6) {
@ -14880,80 +14881,15 @@ static void decode_opc_special3_r6(CPUMIPSState *env, DisasContext *ctx)
static void decode_opc_special3_legacy(CPUMIPSState *env, DisasContext *ctx)
{
uint32_t op1;
#if defined(TARGET_MIPS64)
int rd = (ctx->opcode >> 11) & 0x1f;
int rs = (ctx->opcode >> 21) & 0x1f;
int rt = (ctx->opcode >> 16) & 0x1f;
#endif
op1 = MASK_SPECIAL3(ctx->opcode);
switch (op1) {
#if defined(TARGET_MIPS64)
case OPC_DDIV_G_2E ... OPC_DDIVU_G_2E:
case OPC_DMULT_G_2E ... OPC_DMULTU_G_2E:
case OPC_DMOD_G_2E ... OPC_DMODU_G_2E:
check_insn(ctx, INSN_LOONGSON2E);
gen_loongson_integer(ctx, op1, rd, rs, rt);
break;
#endif
default: /* Invalid */
MIPS_INVAL("special3_legacy");
generate_exception(ctx, EXCP_RI);
break;
}
}
static void decode_opc_special3(CPUMIPSState *env, DisasContext *ctx)
{
int rs, rt, rd, sa;
int rs, rt, rd;
uint32_t op1, op2;
rs = (ctx->opcode >> 21) & 0x1f;
rt = (ctx->opcode >> 16) & 0x1f;
rd = (ctx->opcode >> 11) & 0x1f;
sa = (ctx->opcode >> 6) & 0x1f;
op1 = MASK_SPECIAL3(ctx->opcode);
switch (op1) {
case OPC_EXT:
case OPC_INS:
check_insn(ctx, ISA_MIPS32R2);
gen_bitops(ctx, op1, rt, rs, sa, rd);
break;
case OPC_BSHFL:
check_insn(ctx, ISA_MIPS32R2);
op2 = MASK_BSHFL(ctx->opcode);
gen_bshfl(ctx, op2, rt, rd);
break;
case OPC_RDHWR:
gen_rdhwr(ctx, rt, rd);
break;
case OPC_FORK:
check_insn(ctx, ASE_MT);
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
gen_load_gpr(t0, rt);
gen_load_gpr(t1, rs);
gen_helper_fork(t0, t1);
tcg_temp_free(t0);
tcg_temp_free(t1);
}
break;
case OPC_YIELD:
check_insn(ctx, ASE_MT);
{
TCGv t0 = tcg_temp_new();
save_cpu_state(ctx, 1);
gen_load_gpr(t0, rs);
gen_helper_yield(t0, cpu_env, t0);
gen_store_gpr(t0, rd);
tcg_temp_free(t0);
}
break;
case OPC_DIV_G_2E ... OPC_DIVU_G_2E:
case OPC_MOD_G_2E ... OPC_MODU_G_2E:
case OPC_MULT_G_2E ... OPC_MULTU_G_2E:
@ -15221,17 +15157,11 @@ static void decode_opc_special3(CPUMIPSState *env, DisasContext *ctx)
}
break;
#if defined(TARGET_MIPS64)
case OPC_DEXTM ... OPC_DEXT:
case OPC_DINSM ... OPC_DINS:
check_insn(ctx, ISA_MIPS64R2);
check_mips_64(ctx);
gen_bitops(ctx, op1, rt, rs, sa, rd);
break;
case OPC_DBSHFL:
check_insn(ctx, ISA_MIPS64R2);
check_mips_64(ctx);
op2 = MASK_DBSHFL(ctx->opcode);
gen_bshfl(ctx, op2, rt, rd);
case OPC_DDIV_G_2E ... OPC_DDIVU_G_2E:
case OPC_DMULT_G_2E ... OPC_DMULTU_G_2E:
case OPC_DMOD_G_2E ... OPC_DMODU_G_2E:
check_insn(ctx, INSN_LOONGSON2E);
gen_loongson_integer(ctx, op1, rd, rs, rt);
break;
case OPC_ABSQ_S_QH_DSP:
op2 = MASK_ABSQ_S_QH(ctx->opcode);
@ -15464,6 +15394,77 @@ static void decode_opc_special3(CPUMIPSState *env, DisasContext *ctx)
gen_mipsdsp_shift(ctx, op1, rd, rs, rt);
break;
#endif
default: /* Invalid */
MIPS_INVAL("special3_legacy");
generate_exception(ctx, EXCP_RI);
break;
}
}
static void decode_opc_special3(CPUMIPSState *env, DisasContext *ctx)
{
int rs, rt, rd, sa;
uint32_t op1, op2;
rs = (ctx->opcode >> 21) & 0x1f;
rt = (ctx->opcode >> 16) & 0x1f;
rd = (ctx->opcode >> 11) & 0x1f;
sa = (ctx->opcode >> 6) & 0x1f;
op1 = MASK_SPECIAL3(ctx->opcode);
switch (op1) {
case OPC_EXT:
case OPC_INS:
check_insn(ctx, ISA_MIPS32R2);
gen_bitops(ctx, op1, rt, rs, sa, rd);
break;
case OPC_BSHFL:
check_insn(ctx, ISA_MIPS32R2);
op2 = MASK_BSHFL(ctx->opcode);
gen_bshfl(ctx, op2, rt, rd);
break;
#if defined(TARGET_MIPS64)
case OPC_DEXTM ... OPC_DEXT:
case OPC_DINSM ... OPC_DINS:
check_insn(ctx, ISA_MIPS64R2);
check_mips_64(ctx);
gen_bitops(ctx, op1, rt, rs, sa, rd);
break;
case OPC_DBSHFL:
check_insn(ctx, ISA_MIPS64R2);
check_mips_64(ctx);
op2 = MASK_DBSHFL(ctx->opcode);
gen_bshfl(ctx, op2, rt, rd);
break;
#endif
case OPC_RDHWR:
gen_rdhwr(ctx, rt, rd);
break;
case OPC_FORK:
check_insn(ctx, ASE_MT);
{
TCGv t0 = tcg_temp_new();
TCGv t1 = tcg_temp_new();
gen_load_gpr(t0, rt);
gen_load_gpr(t1, rs);
gen_helper_fork(t0, t1);
tcg_temp_free(t0);
tcg_temp_free(t1);
}
break;
case OPC_YIELD:
check_insn(ctx, ASE_MT);
{
TCGv t0 = tcg_temp_new();
save_cpu_state(ctx, 1);
gen_load_gpr(t0, rs);
gen_helper_yield(t0, cpu_env, t0);
gen_store_gpr(t0, rd);
tcg_temp_free(t0);
}
break;
default:
if (ctx->insn_flags & ISA_MIPS32R6) {
decode_opc_special3_r6(env, ctx);