1 files changed, 103 insertions, 0 deletions
diff --git a/asm/intel64/jmp.cpp b/asm/intel64/jmp.cpp
new file mode 100644
index 0000000..30ae546
--- /dev/null
+++ b/asm/intel64/jmp.cpp
@@ -0,0 +1,103 @@
+#include "jmp.h"
+
+#include "codes.h"
+
+#include <asm/assembler.h>
+#include <asm/operators.h>
+
+#include <asm/intel64/codes.h>
+
+using namespace std::string_literals;
+
+namespace {
+ struct Jump {
+  std::string name;
+  OP_T jmp8;  ///< if empty, not available
+  OP_T jmp32; ///< if empty, not available
+ };
+
+ std::vector<Jump> jumpOps {
+  // Call Procedure
+  {"call",  OP_T{},       OP_T{ 0xE8 }      }, // no addr8 version
+
+  // Unconditional Jump
+  {"jmp",   OP_T{ 0xEB }, OP_T{ 0xE9 }      },
+
+  // Conditional Jumps
+  {"ja",    OP_T{ 0x77 }, OP_T{ 0x0F, 0x87 }},
+  {"jae",   OP_T{ 0x73 }, OP_T{ 0x0F, 0x83 }},
+  {"jb",    OP_T{ 0x72 }, OP_T{ 0x0F, 0x82 }},
+  {"jbe",   OP_T{ 0x76 }, OP_T{ 0x0F, 0x86 }},
+  {"jc",    OP_T{ 0x72 }, OP_T{ 0x0F, 0x82 }},
+  {"jecxz", OP_T{ 0xE3 }, OP_T{}            }, // no addr32 version
+  {"jrcxz", OP_T{ 0xE3 }, OP_T{}            }, // no addr32 version
+  {"je",    OP_T{ 0x74 }, OP_T{ 0x0F, 0x84 }},
+  {"jg",    OP_T{ 0x7F }, OP_T{ 0x0F, 0x8F }},
+  {"jge",   OP_T{ 0x7D }, OP_T{ 0x0F, 0x8D }},
+  {"jl",    OP_T{ 0x7C }, OP_T{ 0x0F, 0x8C }},
+  {"jle",   OP_T{ 0x7E }, OP_T{ 0x0F, 0x8E }},
+  {"jna",   OP_T{ 0x76 }, OP_T{ 0x0F, 0x86 }},
+  {"jnae",  OP_T{ 0x72 }, OP_T{ 0x0F, 0x82 }},
+  {"jnb",   OP_T{ 0x73 }, OP_T{ 0x0F, 0x83 }},
+  {"jnbe",  OP_T{ 0x77 }, OP_T{ 0x0F, 0x87 }},
+  {"jnc",   OP_T{ 0x73 }, OP_T{ 0x0F, 0x83 }},
+  {"jne",   OP_T{ 0x75 }, OP_T{ 0x0F, 0x85 }},
+  {"jng",   OP_T{ 0x7E }, OP_T{ 0x0F, 0x8E }},
+  {"jnge",  OP_T{ 0x7C }, OP_T{ 0x0F, 0x8C }},
+  {"jnl",   OP_T{ 0x7D }, OP_T{ 0x0F, 0x8D }},
+  {"jnle",  OP_T{ 0x7F }, OP_T{ 0x0F, 0x8F }},
+  {"jno",   OP_T{ 0x71 }, OP_T{ 0x0F, 0x81 }},
+  {"jnp",   OP_T{ 0x7B }, OP_T{ 0x0F, 0x8B }},
+  {"jns",   OP_T{ 0x79 }, OP_T{ 0x0F, 0x89 }},
+  {"jnz",   OP_T{ 0x75 }, OP_T{ 0x0F, 0x85 }},
+  {"jo",    OP_T{ 0x70 }, OP_T{ 0x0F, 0x80 }},
+  {"jp",    OP_T{ 0x7A }, OP_T{ 0x0F, 0x8A }},
+  {"jpe",   OP_T{ 0x7A }, OP_T{ 0x0F, 0x8A }},
+  {"jpo",   OP_T{ 0x7B }, OP_T{ 0x0F, 0x8B }},
+  {"js",    OP_T{ 0x78 }, OP_T{ 0x0F, 0x88 }},
+  {"jz",    OP_T{ 0x74 }, OP_T{ 0x0F, 0x84 }},
+ };
+
+ bool registerOps() {
+  bool result{true};
+  for (const auto& jumpOp: jumpOps) {
+   result &= registerOp(mangleName<AsmArgs::Label>(jumpOp.name), [&](AsmArgs& args) -> std::shared_ptr<Op>{
+                        return std::make_shared<Op_jmp>(jumpOp.name, args, jumpOp.jmp8, jumpOp.jmp32);
+                       });
+  }
+  return result;
+ }
+
+ bool registered {
+  registerOps()
+ };
+}
+
+Op_jmp::Op_jmp(const std::string& name, AsmArgs& args, const OP_T& jmp8, const OP_T& jmp32)
+{
+ label = std::any_cast<AsmArgs::Label>(args[0]).name();
+
+ if (!jmp32.empty()) { // set machine_code
+  machine_code = jmp32 + OP_T{size_t(4), uint8_t(0)};
+  addr_size = 4;
+  addr_offs = jmp32.size();
+  if (!jmp8.empty()) { // also provide alternative
+   alternative_code = jmp8 + OP_T{size_t(1), uint8_t(0)};
+   alternative_size = 1;
+   alternative_offs = jmp8.size();
+  }
+ }
+
+ if (machine_code.empty() && !jmp8.empty()) {
+  machine_code = jmp8 + OP_T{size_t(1), uint8_t(0)};
+  addr_size = 1;
+  addr_offs = jmp8.size();
+ }
+
+ if (machine_code.empty()) {
+  throw std::runtime_error("Unimplemented: "s + name);
+ }
+
+ // actual address not set, yet!
+}
+