X87: enable the X87 turbofan support.

src/x87/assembler-x87.cc

Index: src/x87/assembler-x87.cc
diff --git a/src/x87/assembler-x87.cc b/src/x87/assembler-x87.cc
index 1f572be423c2d98f210fb00bc8adeefc7e5b68d1..b7ba0cdf9b7293327faa435c10ed4f6e919a9cfd 100644
--- a/src/x87/assembler-x87.cc
+++ b/src/x87/assembler-x87.cc
@@ -388,6 +388,14 @@ void Assembler::mov_b(Register dst, const Operand& src) {
 }
 
 
+void Assembler::mov_b(const Operand& dst, const Immediate& src) {
+  EnsureSpace ensure_space(this);
+  EMIT(0xC6);
+  emit_operand(eax, dst);
+  EMIT(static_cast<int8_t>(src.x_));
+}
+
+
 void Assembler::mov_b(const Operand& dst, int8_t imm8) {
   EnsureSpace ensure_space(this);
   EMIT(0xC6);
@@ -430,6 +438,16 @@ void Assembler::mov_w(const Operand& dst, int16_t imm16) {
 }
 
 
+void Assembler::mov_w(const Operand& dst, const Immediate& src) {
+  EnsureSpace ensure_space(this);
+  EMIT(0x66);
+  EMIT(0xC7);
+  emit_operand(eax, dst);
+  EMIT(static_cast<int8_t>(src.x_ & 0xff));
+  EMIT(static_cast<int8_t>(src.x_ >> 8));
+}
+
+
 void Assembler::mov(Register dst, int32_t imm32) {
   EnsureSpace ensure_space(this);
   EMIT(0xB8 | dst.code());
@@ -1698,6 +1716,20 @@ void Assembler::fsub_i(int i) {
 }
 
 
+void Assembler::fsubr_d(const Operand& adr) {
+  EnsureSpace ensure_space(this);
+  EMIT(0xDC);
+  emit_operand(ebp, adr);
+}
+
+
+void Assembler::fsub_d(const Operand& adr) {
+  EnsureSpace ensure_space(this);
+  EMIT(0xDC);
+  emit_operand(esp, adr);
+}
+
+
 void Assembler::fisub_s(const Operand& adr) {
   EnsureSpace ensure_space(this);
   EMIT(0xDA);
@@ -1717,12 +1749,33 @@ void Assembler::fmul(int i) {
 }
 
 
+void Assembler::fmul_d(const Operand& adr) {
+  EnsureSpace ensure_space(this);
+  EMIT(0xDC);
+  emit_operand(ecx, adr);
+}
+
+
 void Assembler::fdiv(int i) {
   EnsureSpace ensure_space(this);
   emit_farith(0xDC, 0xF8, i);
 }
 
 
+void Assembler::fdiv_d(const Operand& adr) {
+  EnsureSpace ensure_space(this);
+  EMIT(0xDC);
+  emit_operand(esi, adr);
+}
+
+
+void Assembler::fdivr_d(const Operand& adr) {
+  EnsureSpace ensure_space(this);
+  EMIT(0xDC);
+  emit_operand(edi, adr);
+}
+
+
 void Assembler::fdiv_i(int i) {
   EnsureSpace ensure_space(this);
   emit_farith(0xD8, 0xF0, i);