Implement function to setup core C0 userlocal register.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>

2 files changed, 9 insertions, 3 deletions

diff --git a/qtmips_machine/core.cpp b/qtmips_machine/core.cpp
index d4a3ce6..a276b3b 100644
--- a/qtmips_machine/core.cpp
+++ b/qtmips_machine/core.cpp
@@ -47,7 +47,7 @@ Core::Core(Registers *regs, MemoryAccess *mem_program, MemoryAccess *mem_data,
     this->mem_data = mem_data;
     this->ex_default_handler = new StopExceptionHandler();
     this->min_cache_row_size = min_cache_row_size;
-    this->hwr_user_local = 0xe0000000;
+    this->hwr_userlocal = 0xe0000000;
 }
 
 void Core::step(bool skip_break) {
@@ -135,6 +135,10 @@ bool Core::handle_exception(Core *core, Registers *regs, ExceptionCause excause,
     return false;
 }
 
+void Core::set_c0_userlocal(std::uint32_t address) {
+    hwr_userlocal = address;
+}
+
 struct Core::dtFetch Core::fetch(bool skip_break) {
     enum ExceptionCause excause = EXCAUSE_NONE;
     std::uint32_t inst_addr = regs->read_pc();
@@ -276,7 +280,7 @@ struct Core::dtExecute Core::execute(const struct dtDecode &dt) {
             alu_val = 1;
             break;
         case 29: // UserLocal
-            alu_val = hwr_user_local;
+            alu_val = hwr_userlocal;
             break;
         default:
             alu_val = 0;
diff --git a/qtmips_machine/core.h b/qtmips_machine/core.h
index 97a15c1..889a30c 100644
--- a/qtmips_machine/core.h
+++ b/qtmips_machine/core.h
@@ -85,6 +85,8 @@ public:
     void remove_hwbreak(std::uint32_t address);
     bool is_hwbreak(std::uint32_t address);
 
+    void set_c0_userlocal(std::uint32_t address);
+
     enum ForwardFrom {
         FORWARD_NONE   = 0b00,
         FORWARD_FROM_W = 0b01,
@@ -247,7 +249,7 @@ private:
     };
     unsigned int cycle_c;
     unsigned int min_cache_row_size;
-    std::uint32_t hwr_user_local;
+    std::uint32_t hwr_userlocal;
     QMap<std::uint32_t, hwBreak *> hw_breaks;
 };