handle compare/jump instructions in script assembler

diff --git a/src/loader/Interpreter.cpp b/src/loader/Interpreter.cpp
index bd7473aebab2a8673d4f419adbdc359efaa59e8b..6bb022f1e4c6c46d354c1afc62fa6710be9da1e3 100644 (file)
--- a/src/loader/Interpreter.cpp
+++ b/src/loader/Interpreter.cpp
@@ -420,6 +420,58 @@ void Interpreter::ReadScript(const std::vector<ScriptToken *> &s, Script *script
                        if (i == end) {
                                throw Error("unexpected script end after rand");
                        }
+               } else if (cmd == "cmp") {
+                       ++i;
+                       if (i == end) {
+                               throw Error("unexpected script end after cmp");
+                       }
+                       size += sizeof(int);
+                       ++i;
+                       if (i == end) {
+                               throw Error("unexpected script end after cmp");
+                       }
+               } else if (cmd == "jmp") {
+                       size += sizeof(int);
+                       ++i;
+                       if (i == end) {
+                               throw Error("unexpected script end after cmp");
+                       }
+               } else if (cmd == "jeq") {
+                       size += sizeof(int);
+                       ++i;
+                       if (i == end) {
+                               throw Error("unexpected script end after cmp");
+                       }
+               } else if (cmd == "jne") {
+                       size += sizeof(int);
+                       ++i;
+                       if (i == end) {
+                               throw Error("unexpected script end after cmp");
+                       }
+               } else if (cmd == "jl") {
+                       size += sizeof(int);
+                       ++i;
+                       if (i == end) {
+                               throw Error("unexpected script end after cmp");
+                       }
+               } else if (cmd == "jle") {
+                       size += sizeof(int);
+                       ++i;
+                       if (i == end) {
+                               throw Error("unexpected script end after cmp");
+                       }
+               } else if (cmd == "jg") {
+                       size += sizeof(int);
+                       ++i;
+                       if (i == end) {
+                               throw Error("unexpected script end after cmp");
+                       }
+               } else if (cmd == "jge") {
+                       size += sizeof(int);
+                       ++i;
+                       if (i == end) {
+                               throw Error("unexpected script end after cmp");
+                       }
                } else if (cmd == "sysc") {
 
                } else {
@@ -530,6 +582,91 @@ void Interpreter::ReadScript(const std::vector<ScriptToken *> &s, Script *script
                        } else {
                                throw Error("unexpected register " + reg);
                        }
+               } else if (cmd == "cmp") {
+                       ++i;
+                       const string &reg((*i)->RegisterName());
+                       ++i;
+                       if (reg == "i0") {
+                               if ((*i)->GetType() == ScriptToken::REGISTER && (*i)->RegisterName() == "i1") {
+                                       text[cursor] = Script::CODE_CMP_I0_I1;
+                                       ++cursor;
+                               } else {
+                                       text[cursor] = Script::CODE_CMP_I0;
+                                       ++cursor;
+                                       ReadScriptInteger(**i, text + cursor);
+                                       cursor += sizeof(int);
+                               }
+                       } else if (reg == "i1") {
+                               text[cursor] = Script::CODE_CMP_I1;
+                               ++cursor;
+                               ReadScriptInteger(**i, text + cursor);
+                               cursor += sizeof(int);
+                       } else {
+                               throw Error("cannot use " + reg + " as lhs for comparison");
+                       }
+               } else if (cmd == "jmp") {
+                       text[cursor] = Script::CODE_JUMP;
+                       ++cursor;
+                       ++i;
+                       if (!labels.count((*i)->Identifier())) {
+                               throw Error("use of undefined label " + (*i)->Identifier());
+                       }
+                       *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+                       cursor += sizeof(int);
+               } else if (cmd == "jeq") {
+                       text[cursor] = Script::CODE_JUMP_EQUAL;
+                       ++cursor;
+                       ++i;
+                       if (!labels.count((*i)->Identifier())) {
+                               throw Error("use of undefined label " + (*i)->Identifier());
+                       }
+                       *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+                       cursor += sizeof(int);
+               } else if (cmd == "jne") {
+                       text[cursor] = Script::CODE_JUMP_NOT_EQUAL;
+                       ++cursor;
+                       ++i;
+                       if (!labels.count((*i)->Identifier())) {
+                               throw Error("use of undefined label " + (*i)->Identifier());
+                       }
+                       *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+                       cursor += sizeof(int);
+               } else if (cmd == "jl") {
+                       text[cursor] = Script::CODE_JUMP_LESS;
+                       ++cursor;
+                       ++i;
+                       if (!labels.count((*i)->Identifier())) {
+                               throw Error("use of undefined label " + (*i)->Identifier());
+                       }
+                       *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+                       cursor += sizeof(int);
+               } else if (cmd == "jle") {
+                       text[cursor] = Script::CODE_JUMP_LESS_EQUAL;
+                       ++cursor;
+                       ++i;
+                       if (!labels.count((*i)->Identifier())) {
+                               throw Error("use of undefined label " + (*i)->Identifier());
+                       }
+                       *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+                       cursor += sizeof(int);
+               } else if (cmd == "jg") {
+                       text[cursor] = Script::CODE_JUMP_GREATER;
+                       ++cursor;
+                       ++i;
+                       if (!labels.count((*i)->Identifier())) {
+                               throw Error("use of undefined label " + (*i)->Identifier());
+                       }
+                       *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+                       cursor += sizeof(int);
+               } else if (cmd == "jge") {
+                       text[cursor] = Script::CODE_JUMP_GREATER_EQUAL;
+                       ++cursor;
+                       ++i;
+                       if (!labels.count((*i)->Identifier())) {
+                               throw Error("use of undefined label " + (*i)->Identifier());
+                       }
+                       *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+                       cursor += sizeof(int);
                } else if (cmd == "sysc") {
                        text[cursor] = Script::CODE_SYSCALL;
                        ++cursor;