From 2be9570aa99080419532210db3330d8c71bebe79 Mon Sep 17 00:00:00 2001
From: iris <iris.kaizen@pm.me>
Date: Tue, 12 May 2026 14:27:59 +0200
Subject: [PATCH] getting to my first branch now

---
 CMakeLists.txt                 |  2 ++
 core/broadway.cpp              |  8 +++++---
 core/broadway.hpp              |  4 ++++
 core/broadway/instructions.cpp | 11 +++++++++--
 core/broadway/utils.hpp        | 11 +++++++++++
 external/ircolib/types.hpp     | 19 +++++++++++++++++++
 6 files changed, 50 insertions(+), 5 deletions(-)
 create mode 100644 core/broadway/utils.hpp

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 18b9e2c..f50441c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,10 +9,12 @@ option(BUILD_SHARED_LIBS OFF)
 include_directories(external/ELFIO)
 include_directories(external/capstone/include)
 include_directories(external/cflags/include)
+include_directories(external/xbyak)
 include_directories(external)
 
 if(WIN32)
     add_compile_definitions(_CRT_SECURE_NO_WARNINGS)
+    add_compile_definitions(NOMINMAX)
 endif()
 
 set(CAPSTONE_ARCHITECTURE_DEFAULT OFF)
diff --git a/core/broadway.cpp b/core/broadway.cpp
index 09535f4..51ac944 100644
--- a/core/broadway.cpp
+++ b/core/broadway.cpp
@@ -1,4 +1,4 @@
-#include <broadway.hpp>
+#include <broadway/utils.hpp>
 #include <mem.hpp>
 #include <print>
 #include <ircolib/log.hpp>
@@ -29,11 +29,13 @@ ircolib::u32 broadway::fetch(mem &mem) {
 }
 
 void broadway::execute(ircolib::u32 instr, mem &mem) {
-    ircolib::u8 primary = (instr >> 26) & 0x3f;
-    switch (primary) {
+    switch (utils::primary(instr)) {
     case 15: // addis rd, ra, simm
         addis(instr);
         break;
+    case 24: // ori ra, rs, uimm
+        ori(instr);
+        break;
     default:
         std::println("broadway::execute unimplemented instruction 0x{:08X} / 0b{:032b}", instr, instr);
         std::println("disassembly:");
diff --git a/core/broadway.hpp b/core/broadway.hpp
index 8d663d0..4cc228a 100644
--- a/core/broadway.hpp
+++ b/core/broadway.hpp
@@ -1,6 +1,7 @@
 #pragma once
 #include <ircolib/types.hpp>
 #include <capstone/capstone.h>
+#include <xbyak/xbyak.h>
 #include <array>
 
 namespace weee::core {
@@ -18,9 +19,12 @@ struct broadway {
     bool disasm_available = true;
     ircolib::u32 pc = 0;
     std::array<ircolib::u32, 32> gpr{};
+    // ircolib::u32 const_gpr_lookup{};
     csh capstone;
+    // Xbyak::CodeGenerator code;
 
     // instructions
     void addis(ircolib::u32);
+    void ori(ircolib::u32);
 };
 } // namespace weee::core
diff --git a/core/broadway/instructions.cpp b/core/broadway/instructions.cpp
index 23a5f3c..416d800 100644
--- a/core/broadway/instructions.cpp
+++ b/core/broadway/instructions.cpp
@@ -1,7 +1,14 @@
-#include <broadway.hpp>
+#include <broadway/utils.hpp>
 
 namespace weee::core {
 void broadway::addis(ircolib::u32 instr) {
-    
+    if (utils::RA(instr) == 0) { // lis
+        gpr[utils::RD(instr)] = ircolib::s32(utils::SIMM(instr)) << 16;
+        return;
+    }
+
+    gpr[utils::RD(instr)] = gpr[utils::RA(instr)] + (ircolib::s32(utils::SIMM(instr)) << 16);
 }
+
+void broadway::ori(ircolib::u32 instr) { gpr[utils::RA(instr)] = gpr[utils::RS(instr)] | utils::UIMM(instr); }
 } // namespace weee::core
diff --git a/core/broadway/utils.hpp b/core/broadway/utils.hpp
new file mode 100644
index 0000000..365442c
--- /dev/null
+++ b/core/broadway/utils.hpp
@@ -0,0 +1,11 @@
+#pragma once
+#include <broadway.hpp>
+
+namespace weee::core::utils {
+static inline ircolib::u8 primary(ircolib::u32 instr) { return (instr >> 26) & 0x3f; }
+static inline ircolib::u8 RD(ircolib::u32 instr) { return (instr >> 21) & 0x1f; }
+static inline ircolib::u8 RS(ircolib::u32 instr) { return RD(instr); }
+static inline ircolib::u8 RA(ircolib::u32 instr) { return (instr >> 16) & 0x1f; }
+static inline ircolib::u16 UIMM(ircolib::u32 instr) { return instr & 0xffff; }
+static inline ircolib::s16 SIMM(ircolib::u32 instr) { return UIMM(instr); }
+} // namespace weee::core::utils
diff --git a/external/ircolib/types.hpp b/external/ircolib/types.hpp
index b96d7de..b03443d 100644
--- a/external/ircolib/types.hpp
+++ b/external/ircolib/types.hpp
@@ -11,6 +11,25 @@ using s16 = int16_t;
 using s32 = int32_t;
 using s64 = int64_t;
 
+template <typename T, size_t bit>
+static constexpr bool is_bit_set(const T &val) {
+    return val & (1 << bit);
+}
+
+template <typename T, size_t bit>
+static constexpr void set_bit(T &val) {
+    val |= 1 << bit;
+}
+
+template <typename T>
+inline bool is_bit_set(const T &val, const size_t &bit) {
+    return val & (1 << bit);
+}
+
+template <typename T>
+inline void set_bit(T &val, const size_t &bit) {
+    val |= 1 << bit;
+}
 } // namespace ircolib
 
 constexpr ircolib::u32 operator""_kib(const unsigned long long v) { return v * 1024; }