jump

src/instructions/impl/JMP.c

@@ -0,0 +1,40 @@
+#include "impl_macros.h"
+
+// JUMP [destination address]
+i32 JMP_impl(VM* vm){
+    u32 dst_addr = 0;
+    readVar(dst_addr);
+
+    vm->current_pos = dst_addr;
+
+    return sizeof(dst_addr);
+}
+
+
+// JNZ [destination address] [condition register]
+i32 JNZ_impl(VM* vm){
+    u32 dst_addr = 0;
+    readVar(dst_addr);
+    u8 cond_register_i = 0;
+    readRegisterVar(cond_register_i);
+    
+    if(vm->registers.array[cond_register_i].u32v0 != 0){
+        vm->current_pos = dst_addr;
+    }
+    
+    return sizeof(dst_addr) + sizeof(cond_register_i);
+}
+
+// JZ [destination address] [condition register]
+i32 JZ_impl(VM* vm){
+    u32 dst_addr = 0;
+    readVar(dst_addr);
+    u8 cond_register_i = 0;
+    readRegisterVar(cond_register_i);
+    
+    if(vm->registers.array[cond_register_i].u32v0 == 0){
+        vm->current_pos = dst_addr;
+    }
+    
+    return sizeof(dst_addr) + sizeof(cond_register_i);
+}

src/instructions/instructions.c

@@ -27,8 +27,8 @@ i32 XOR_impl(VM* vm);
 i32 AND_impl(VM* vm);
 
 i32 JMP_impl(VM* vm);
-i32 JIF_impl(VM* vm);
-i32 JEL_impl(VM* vm);
+i32 JNZ_impl(VM* vm);
+i32 JZ_impl(VM* vm);
 
 
 Array_declare(Instruction);
@@ -59,8 +59,8 @@ static const Array_Instruction instructions_array = ARRAY(Instruction, {
     Instruction_construct(AND),
     
     Instruction_construct(JMP),
-    Instruction_construct(JIF),
-    Instruction_construct(JEL),
+    Instruction_construct(JNZ),
+    Instruction_construct(JZ),
 });
 
 const Instruction* Instruction_getByOpcode(Opcode opcode){

src/instructions/instructions.h

@@ -32,8 +32,8 @@ typedef enum __attribute__((__packed__)) Opcode {
     Opcode_AND,
     
     Opcode_JMP,
-    Opcode_JIF,
-    Opcode_JEL,
+    Opcode_JNZ,
+    Opcode_JZ,
 } Opcode;
 
 typedef struct Instruction {