65C832: Fix issue with length of 32 bit immediates.

dlkeng · Oct 5, 2024 · 34f2555 · 34f2555
1 parent f64cb9d
commit 34f2555
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/asm/65816.cpp b/asm/65816.cpp
@@ -502,6 +502,7 @@ int parse_instruction_65816(AsmContext *asm_context, char *instr)
         {
           if (asm_context->flags == 32)
           {
+            // 65C832: An immediate with .l means read 32 bits.
             size = 32;
           }
             else
@@ -900,7 +901,7 @@ int parse_instruction_65816(AsmContext *asm_context, char *instr)
   {
     if (size == 32)
     {
-      bytes = 4;
+      bytes = 5;
     }
       else
     {
@@ -926,6 +927,11 @@ int parse_instruction_65816(AsmContext *asm_context, char *instr)
     add_bin8(asm_context, (num >> 16) & 0xff, IS_OPCODE);
   }
 
+  if (bytes > 4)
+  {
+    add_bin8(asm_context, (num >> 24) & 0xff, IS_OPCODE);
+  }
+
   return bytes;
 }
 
diff --git a/common/cpu_list.cpp b/common/cpu_list.cpp
@@ -301,7 +301,7 @@ struct _cpu_list cpu_list[] =
 #endif
 #ifdef ENABLE_65816
   {
-    "65832",
+    "65c832",
     CPU_TYPE_65816,
     ENDIAN_LITTLE,
     1,