@@ -238,8 +238,16 @@ NCP 10 ----- 110111 ----- --------- ----- # v8 CPop2
## Major Opcode 11 -- load and store instructions
##
+%dfp_rd 25:5 !function=extract_dfpreg
+%qfp_rd 25:5 !function=extract_qfpreg
+
&r_r_ri_asi rd rs1 rs2_or_imm asi imm:bool
@r_r_ri_na .. rd:5 ...... rs1:5 imm:1 rs2_or_imm:s13 &r_r_ri_asi asi=-1
+@d_r_ri_na .. ..... ...... rs1:5 imm:1 rs2_or_imm:s13 \
+ &r_r_ri_asi rd=%dfp_rd asi=-1
+@q_r_ri_na .. ..... ...... rs1:5 imm:1 rs2_or_imm:s13 \
+ &r_r_ri_asi rd=%qfp_rd asi=-1
+
@r_r_r_asi .. rd:5 ...... rs1:5 0 asi:8 rs2_or_imm:5 &r_r_ri_asi imm=0
@r_r_i_asi .. rd:5 ...... rs1:5 1 rs2_or_imm:s13 \
&r_r_ri_asi imm=1 asi=-2
@@ -289,6 +297,17 @@ STD 11 ..... 010111 ..... . ............. @r_r_i_asi # STDA
STX 11 ..... 011110 ..... . ............. @r_r_r_asi # STXA
STX 11 ..... 011110 ..... . ............. @r_r_i_asi # STXA
+LDF 11 ..... 100000 ..... . ............. @r_r_ri_na
+LDQF 11 ..... 100010 ..... . ............. @q_r_ri_na
+LDDF 11 ..... 100011 ..... . ............. @d_r_ri_na
+
+STF 11 ..... 100100 ..... . ............. @r_r_ri_na
+{
+ STQF 11 ..... 100110 ..... . ............. @q_r_ri_na
+ STDFQ 11 ----- 100110 ----- - -------------
+}
+STDF 11 ..... 100111 ..... . ............. @d_r_ri_na
+
LDSTUB 11 ..... 001101 ..... . ............. @r_r_ri_na
LDSTUB 11 ..... 011101 ..... . ............. @r_r_r_asi # LDSTUBA
LDSTUB 11 ..... 011101 ..... . ............. @r_r_i_asi # LDSTUBA
@@ -254,29 +254,7 @@ static void gen_op_store_QT0_fpr(unsigned int dst)
offsetof(CPU_QuadU, ll.lower));
}
-static void gen_store_fpr_Q(DisasContext *dc, unsigned int dst,
- TCGv_i64 v1, TCGv_i64 v2)
-{
- dst = QFPREG(dst);
-
- tcg_gen_mov_i64(cpu_fpr[dst / 2], v1);
- tcg_gen_mov_i64(cpu_fpr[dst / 2 + 1], v2);
- gen_update_fprs_dirty(dc, dst);
-}
-
#ifdef TARGET_SPARC64
-static TCGv_i64 gen_load_fpr_Q0(DisasContext *dc, unsigned int src)
-{
- src = QFPREG(src);
- return cpu_fpr[src / 2];
-}
-
-static TCGv_i64 gen_load_fpr_Q1(DisasContext *dc, unsigned int src)
-{
- src = QFPREG(src);
- return cpu_fpr[src / 2 + 1];
-}
-
static void gen_move_Q(DisasContext *dc, unsigned int rd, unsigned int rs)
{
rd = QFPREG(rd);
@@ -2900,6 +2878,16 @@ static void gen_faligndata(TCGv dst, TCGv gsr, TCGv s1, TCGv s2)
}
#endif
+static int extract_dfpreg(DisasContext *dc, int x)
+{
+ return DFPREG(x);
+}
+
+static int extract_qfpreg(DisasContext *dc, int x)
+{
+ return QFPREG(x);
+}
+
/* Include the auto-generated decoder. */
#include "decode-insns.c.inc"
@@ -3035,6 +3023,20 @@ static bool raise_priv(DisasContext *dc)
return true;
}
+static bool raise_unimpfpop(DisasContext *dc)
+{
+ gen_op_fpexception_im(dc, FSR_FTT_UNIMPFPOP);
+ return true;
+}
+
+static bool gen_trap_float128(DisasContext *dc)
+{
+ if (dc->def->features & CPU_FEATURE_FLOAT128) {
+ return false;
+ }
+ return raise_unimpfpop(dc);
+}
+
static bool do_bpcc(DisasContext *dc, arg_bcc *a)
{
target_long target = address_mask_i(dc, dc->pc + a->i * 4);
@@ -4633,6 +4635,68 @@ static bool do_casa(DisasContext *dc, arg_r_r_ri_asi *a, MemOp mop)
TRANS(CASA, CASA, do_casa, a, MO_TEUL)
TRANS(CASXA, 64, do_casa, a, MO_TEUQ)
+static bool do_ld_fpr(DisasContext *dc, arg_r_r_ri_asi *a, MemOp sz)
+{
+ TCGv addr = gen_ldst_addr(dc, a->rs1, a->imm, a->rs2_or_imm);
+ DisasASI da;
+
+ if (addr == NULL) {
+ return false;
+ }
+ if (gen_trap_ifnofpu(dc)) {
+ return true;
+ }
+ if (sz == MO_128 && gen_trap_float128(dc)) {
+ return true;
+ }
+ da = resolve_asi(dc, a->asi, MO_TE | sz);
+ gen_ldf_asi0(dc, &da, sz, addr, a->rd);
+ gen_update_fprs_dirty(dc, a->rd);
+ return advance_pc(dc);
+}
+
+TRANS(LDF, ALL, do_ld_fpr, a, MO_32)
+TRANS(LDDF, ALL, do_ld_fpr, a, MO_64)
+TRANS(LDQF, ALL, do_ld_fpr, a, MO_128)
+
+static bool do_st_fpr(DisasContext *dc, arg_r_r_ri_asi *a, MemOp sz)
+{
+ TCGv addr = gen_ldst_addr(dc, a->rs1, a->imm, a->rs2_or_imm);
+ DisasASI da;
+
+ if (addr == NULL) {
+ return false;
+ }
+ if (gen_trap_ifnofpu(dc)) {
+ return true;
+ }
+ if (sz == MO_128 && gen_trap_float128(dc)) {
+ return true;
+ }
+ da = resolve_asi(dc, a->asi, MO_TE | sz);
+ gen_stf_asi0(dc, &da, sz, addr, a->rd);
+ return advance_pc(dc);
+}
+
+TRANS(STF, ALL, do_st_fpr, a, MO_32)
+TRANS(STDF, ALL, do_st_fpr, a, MO_64)
+TRANS(STQF, ALL, do_st_fpr, a, MO_128)
+
+static bool trans_STDFQ(DisasContext *dc, arg_STDFQ *a)
+{
+ if (!avail_32(dc)) {
+ return false;
+ }
+ if (!supervisor(dc)) {
+ return raise_priv(dc);
+ }
+ if (gen_trap_ifnofpu(dc)) {
+ return true;
+ }
+ gen_op_fpexception_im(dc, FSR_FTT_SEQ_ERROR);
+ return true;
+}
+
#define CHECK_IU_FEATURE(dc, FEATURE) \
if (!((dc)->def->features & CPU_FEATURE_ ## FEATURE)) \
goto illegal_insn;
@@ -4647,7 +4711,8 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
TCGv cpu_src1 __attribute__((unused));
TCGv cpu_src2 __attribute__((unused));
TCGv_i32 cpu_src1_32, cpu_src2_32, cpu_dst_32;
- TCGv_i64 cpu_src1_64, cpu_src2_64, cpu_dst_64;
+ TCGv_i64 cpu_src1_64, cpu_src2_64;
+ TCGv_i64 cpu_dst_64 __attribute__((unused));
target_long simm;
opc = GET_FIELD(insn, 0, 1);
@@ -5514,12 +5579,9 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
}
switch (xop) {
case 0x20: /* ldf, load fpreg */
- gen_address_mask(dc, cpu_addr);
- cpu_dst_32 = gen_dest_fpr_F(dc);
- tcg_gen_qemu_ld_i32(cpu_dst_32, cpu_addr,
- dc->mem_idx, MO_TEUL | MO_ALIGN);
- gen_store_fpr_F(dc, rd, cpu_dst_32);
- break;
+ case 0x22: /* ldqf, load quad fpreg */
+ case 0x23: /* lddf, load double fpreg */
+ g_assert_not_reached(); /* in decodetree */
case 0x21: /* ldfsr, V9 ldxfsr */
#ifdef TARGET_SPARC64
gen_address_mask(dc, cpu_addr);
@@ -5536,25 +5598,6 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
dc->mem_idx, MO_TEUL | MO_ALIGN);
gen_helper_ldfsr(cpu_fsr, tcg_env, cpu_fsr, cpu_dst_32);
break;
- case 0x22: /* ldqf, load quad fpreg */
- CHECK_FPU_FEATURE(dc, FLOAT128);
- gen_address_mask(dc, cpu_addr);
- cpu_src1_64 = tcg_temp_new_i64();
- tcg_gen_qemu_ld_i64(cpu_src1_64, cpu_addr, dc->mem_idx,
- MO_TEUQ | MO_ALIGN_4);
- tcg_gen_addi_tl(cpu_addr, cpu_addr, 8);
- cpu_src2_64 = tcg_temp_new_i64();
- tcg_gen_qemu_ld_i64(cpu_src2_64, cpu_addr, dc->mem_idx,
- MO_TEUQ | MO_ALIGN_4);
- gen_store_fpr_Q(dc, rd, cpu_src1_64, cpu_src2_64);
- break;
- case 0x23: /* lddf, load double fpreg */
- gen_address_mask(dc, cpu_addr);
- cpu_dst_64 = gen_dest_fpr_D(dc, rd);
- tcg_gen_qemu_ld_i64(cpu_dst_64, cpu_addr, dc->mem_idx,
- MO_TEUQ | MO_ALIGN_4);
- gen_store_fpr_D(dc, rd, cpu_dst_64);
- break;
default:
goto illegal_insn;
}
@@ -5564,11 +5607,9 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
}
switch (xop) {
case 0x24: /* stf, store fpreg */
- gen_address_mask(dc, cpu_addr);
- cpu_src1_32 = gen_load_fpr_F(dc, rd);
- tcg_gen_qemu_st_i32(cpu_src1_32, cpu_addr,
- dc->mem_idx, MO_TEUL | MO_ALIGN);
- break;
+ case 0x26: /* v9 stqf, v8 stdfq */
+ case 0x27: /* stdf, store double fpreg */
+ g_assert_not_reached();
case 0x25: /* stfsr, V9 stxfsr */
{
#ifdef TARGET_SPARC64
@@ -5583,43 +5624,6 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
dc->mem_idx, MO_TEUL | MO_ALIGN);
}
break;
- case 0x26:
-#ifdef TARGET_SPARC64
- /* V9 stqf, store quad fpreg */
- CHECK_FPU_FEATURE(dc, FLOAT128);
- gen_address_mask(dc, cpu_addr);
- /* ??? While stqf only requires 4-byte alignment, it is
- legal for the cpu to signal the unaligned exception.
- The OS trap handler is then required to fix it up.
- For qemu, this avoids having to probe the second page
- before performing the first write. */
- cpu_src1_64 = gen_load_fpr_Q0(dc, rd);
- tcg_gen_qemu_st_i64(cpu_src1_64, cpu_addr,
- dc->mem_idx, MO_TEUQ | MO_ALIGN_16);
- tcg_gen_addi_tl(cpu_addr, cpu_addr, 8);
- cpu_src2_64 = gen_load_fpr_Q1(dc, rd);
- tcg_gen_qemu_st_i64(cpu_src1_64, cpu_addr,
- dc->mem_idx, MO_TEUQ);
- break;
-#else /* !TARGET_SPARC64 */
- /* stdfq, store floating point queue */
-#if defined(CONFIG_USER_ONLY)
- goto illegal_insn;
-#else
- if (!supervisor(dc))
- goto priv_insn;
- if (gen_trap_ifnofpu(dc)) {
- goto jmp_insn;
- }
- goto nfq_insn;
-#endif
-#endif
- case 0x27: /* stdf, store double fpreg */
- gen_address_mask(dc, cpu_addr);
- cpu_src1_64 = gen_load_fpr_D(dc, rd);
- tcg_gen_qemu_st_i64(cpu_src1_64, cpu_addr, dc->mem_idx,
- MO_TEUQ | MO_ALIGN_4);
- break;
default:
goto illegal_insn;
}
@@ -5666,19 +5670,9 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
illegal_insn:
gen_exception(dc, TT_ILL_INSN);
return;
-#if !defined(CONFIG_USER_ONLY) && !defined(TARGET_SPARC64)
- priv_insn:
- gen_exception(dc, TT_PRIV_INSN);
- return;
-#endif
nfpu_insn:
gen_op_fpexception_im(dc, FSR_FTT_UNIMPFPOP);
return;
-#if !defined(CONFIG_USER_ONLY) && !defined(TARGET_SPARC64)
- nfq_insn:
- gen_op_fpexception_im(dc, FSR_FTT_SEQ_ERROR);
- return;
-#endif
}
static void sparc_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)