dmnt: implement break/continue, static reg commands

stratosphere/dmnt/source/cheat/impl/dmnt_cheat_vm.hpp

@@ -42,12 +42,15 @@ namespace ams::dmnt::cheat::impl {
         CheatVmOpcodeType_BeginRegisterConditionalBlock = 0xC0,
         CheatVmOpcodeType_SaveRestoreRegister = 0xC1,
         CheatVmOpcodeType_SaveRestoreRegisterMask = 0xC2,
+        CheatVmOpcodeType_LoadStaticRegister = 0xC3,
 
         /* This is a meta entry, and not a real opcode. */
         /* This is to facilitate multi-nybble instruction decoding. */
         CheatVmOpcodeType_DoubleExtendedWidth = 0xF0,
 
         /* Double-extended width opcodes. */
+        CheatVmOpcodeType_BreakProcess    = 0xFF0,
+        CheatVmOpcodeType_ContinueProcess = 0xFF1,
         CheatVmOpcodeType_DebugLog = 0xFFF,
     };
 
@@ -223,6 +226,11 @@ namespace ams::dmnt::cheat::impl {
         bool should_operate[0x10];
     };
 
+    struct LoadStaticRegisterOpcode {
+        u32 static_idx;
+        u32 idx;
+    };
+
     struct DebugLogOpcode {
         u32 bit_width;
         u32 log_id;
@@ -252,6 +260,7 @@ namespace ams::dmnt::cheat::impl {
             BeginRegisterConditionalOpcode begin_reg_cond;
             SaveRestoreRegisterOpcode save_restore_reg;
             SaveRestoreRegisterMaskOpcode save_restore_regmask;
+            LoadStaticRegisterOpcode load_static_reg;
             DebugLogOpcode debug_log;
         };
     };
@@ -260,6 +269,7 @@ namespace ams::dmnt::cheat::impl {
         public:
             constexpr static size_t MaximumProgramOpcodeCount = 0x400;
             constexpr static size_t NumRegisters = 0x10;
+            constexpr static size_t NumStaticRegisters = 0x100;
         private:
             size_t num_opcodes = 0;
             size_t instruction_ptr = 0;
@@ -268,6 +278,7 @@ namespace ams::dmnt::cheat::impl {
             u32 program[MaximumProgramOpcodeCount] = {0};
             u64 registers[NumRegisters] = {0};
             u64 saved_values[NumRegisters] = {0};
+            u64 static_registers[NumStaticRegisters] = {0};
             size_t loop_tops[NumRegisters] = {0};
         private:
             bool DecodeNextOpcode(CheatVmOpcode *out);
@@ -294,6 +305,18 @@ namespace ams::dmnt::cheat::impl {
 
             bool LoadProgram(const CheatEntry *cheats, size_t num_cheats);
             void Execute(const CheatProcessMetadata *metadata);
+
+            u64 GetStaticRegister(size_t which) const {
+                return this->static_registers[which];
+            }
+
+            void SetStaticRegister(size_t which, u64 value) {
+                this->static_registers[which] = value;
+            }
+
+            void ResetStaticRegisters() {
+                std::memset(this->static_registers, 0, sizeof(this->static_registers));
+            }
     #ifdef DMNT_CHEAT_VM_DEBUG_LOG
         private:
             fs::FileHandle debug_log_file;