ppc/svp64: disassemble SVP64 operands
authorDmitry Selyutin <ghostmansd@gmail.com>
Thu, 22 Sep 2022 10:48:36 +0000 (13:48 +0300)
committerDmitry Selyutin <ghostmansd@gmail.com>
Fri, 23 Sep 2022 18:13:33 +0000 (21:13 +0300)
opcodes/ppc-dis.c
opcodes/ppc-svp64-dis.c

index aa8f9ea4c640cfcd0ebdb3100c59d4f6e4762ca1..0d17c7a3badc9455c7f80c7ed28dd04462797d09 100644 (file)
@@ -906,6 +906,7 @@ print_insn_powerpc_opcode (struct disassemble_info *info,
   d34 = 0;
   for (opindex = opcode->operands; *opindex != 0; opindex++)
     {
+      bool vector;
       int64_t value;
 
       operand = powerpc_operands + *opindex;
@@ -923,7 +924,13 @@ print_insn_powerpc_opcode (struct disassemble_info *info,
            continue;
        }
 
+      vector = false;
       value = operand_value_powerpc (operand, insn, dialect);
+      if (svp64)
+       {
+         value = svp64_operand_value (svp64,
+           value, *opindex, operand->flags, &vector);
+       }
 
       if (op_separator == need_comma)
        (*info->fprintf_styled_func) (info->stream, dis_style_text, ",");
@@ -937,10 +944,12 @@ print_insn_powerpc_opcode (struct disassemble_info *info,
       if ((operand->flags & PPC_OPERAND_GPR) != 0
          || ((operand->flags & PPC_OPERAND_GPR_0) != 0 && value != 0))
        (*info->fprintf_styled_func) (info->stream, dis_style_register,
-                                     "r%" PRId64, value);
+                                     "%sr%" PRId64,
+                                     (vector ? "*" : ""), value);
       else if ((operand->flags & PPC_OPERAND_FPR) != 0)
        (*info->fprintf_styled_func) (info->stream, dis_style_register,
-                                     "f%" PRId64, value);
+                                     "%sf%" PRId64,
+                                     (vector ? "*" : ""), value);
       else if ((operand->flags & PPC_OPERAND_VR) != 0)
        (*info->fprintf_styled_func) (info->stream, dis_style_register,
                                      "v%" PRId64, value);
@@ -982,13 +991,26 @@ print_insn_powerpc_opcode (struct disassemble_info *info,
          cc = value & 3;
          if (cr != 0)
            {
-             (*info->fprintf_styled_func) (info->stream, dis_style_text,
-                                           "4*");
-             (*info->fprintf_styled_func) (info->stream,
-                                           dis_style_register,
-                                           "cr%d", cr);
-             (*info->fprintf_styled_func) (info->stream, dis_style_text,
-                                           "+");
+             if (svp64)
+               {
+                 (*info->fprintf_styled_func) (info->stream,
+                                               dis_style_register,
+                                               "%scr%d",
+                                               (vector ? "*" : ""),
+                                               cr);
+                 (*info->fprintf_styled_func) (info->stream, dis_style_text,
+                                               ".");
+               }
+             else
+               {
+                 (*info->fprintf_styled_func) (info->stream, dis_style_text,
+                                               "4*");
+                 (*info->fprintf_styled_func) (info->stream,
+                                               dis_style_register,
+                                               "cr%d", cr);
+                 (*info->fprintf_styled_func) (info->stream, dis_style_text,
+                                               "+");
+               }
            }
 
          (*info->fprintf_styled_func) (info->stream,
index 90e37726d889558337fab8a4373893bd81c22093..687078e2ff5ad369674027f3e9236272aac881d1 100644 (file)
@@ -118,3 +118,81 @@ svp64_lookup (uint64_t insn, ppc_cpu_t dialect,
 
   return opcode;
 }
+
+static int64_t
+svp64_operand_value_common (const struct svp64_ctx *svp64,
+  int64_t value, ppc_opindex_t opindex, bool *vector,
+  int vector_shift, int scalar_shift, int spec_shift)
+{
+  uint64_t spec;
+  const struct svp64_extra_desc *desc;
+
+  desc = svp64_extra_desc (svp64->desc, opindex);
+  spec = (*desc->get) (&svp64->insn);
+
+  if (spec == 0)
+    return value;
+
+  *vector = (((spec >> 2) & 1) != 0);
+  if (svp64->desc->etype == SVP64_ETYPE_EXTRA2)
+    spec <<= 1;
+
+  spec = (spec & 0x3);
+
+  if (*vector)
+    value = ((value << vector_shift) | (spec << spec_shift));
+  else
+    value = ((spec << scalar_shift) | value);
+
+  return value;
+}
+
+static int64_t
+svp64_operand_value_gpr (const struct svp64_ctx *svp64,
+  int64_t value, ppc_opindex_t opindex, bool *vector)
+{
+  return svp64_operand_value_common (svp64, value, opindex, vector, 2, 5, 0);
+}
+
+static int64_t
+svp64_operand_value_fpr (const struct svp64_ctx *svp64,
+  int64_t value, ppc_opindex_t opindex, bool *vector)
+{
+  return svp64_operand_value_common (svp64, value, opindex, vector, 2, 5, 0);
+}
+
+static int64_t
+svp64_operand_value_cr_reg (const struct svp64_ctx *svp64,
+  int64_t value, ppc_opindex_t opindex, bool *vector)
+{
+  return svp64_operand_value_common (svp64, value, opindex, vector, 4, 3, 2);
+}
+
+static int64_t
+svp64_operand_value_cr_bit (const struct svp64_ctx *svp64,
+  int64_t value, ppc_opindex_t opindex, bool *vector)
+{
+  uint64_t bits = (value & 0x3);
+
+  value >>= 2;
+  value = svp64_operand_value_common (svp64, value, opindex, vector, 4, 3, 2);
+  value = ((value << 2) | bits);
+
+  return value;
+}
+
+static int64_t
+svp64_operand_value (const struct svp64_ctx *svp64,
+  int64_t value, ppc_opindex_t opindex, uint64_t flags, bool *vector)
+{
+  if (flags & (PPC_OPERAND_GPR | PPC_OPERAND_GPR_0))
+    return svp64_operand_value_gpr (svp64, value, opindex, vector);
+  else if (flags & PPC_OPERAND_FPR)
+    return svp64_operand_value_fpr (svp64, value, opindex, vector);
+  else if (flags & PPC_OPERAND_CR_REG)
+    return svp64_operand_value_cr_reg (svp64, value, opindex, vector);
+  else if (flags & PPC_OPERAND_CR_BIT)
+    return svp64_operand_value_cr_bit (svp64, value, opindex, vector);
+  else
+    return value;
+}