add m740 to macpack cpu, add .ifpm740, add regression test for those

src/ca65/condasm.c

@@ -434,6 +434,16 @@ void DoConditionals (void)
                 CalcOverallIfCond ();
                 break;
 
+            case TOK_IFPM740:
+                D = AllocIf (".IFPM740", 1);
+                NextTok ();
+                if (IfCond) {
+                    SetIfCond (D, GetCPU() == CPU_M740);
+                }
+                ExpectSep ();
+                CalcOverallIfCond ();
+                break;
+
             case TOK_IFPSC02:
                 D = AllocIf (".IFPSC02", 1);
                 NextTok ();
@@ -489,6 +499,7 @@ int CheckConditionals (void)
         case TOK_IFP816:
         case TOK_IFPC02:
         case TOK_IFPDTV:
+        case TOK_IFPM740:
         case TOK_IFPSC02:
         case TOK_IFREF:
             DoConditionals ();

src/ca65/pseudo.c

@@ -2135,6 +2135,7 @@ static CtrlDesc CtrlCmdTab [] = {
     { ccKeepToken,      DoConditionals  },      /* .IFP816 */
     { ccKeepToken,      DoConditionals  },      /* .IFPC02 */
     { ccKeepToken,      DoConditionals  },      /* .IFPDTV */
+    { ccKeepToken,      DoConditionals  },      /* .IFPM740 */
     { ccKeepToken,      DoConditionals  },      /* .IFPSC02 */
     { ccKeepToken,      DoConditionals  },      /* .IFREF */
     { ccNone,           DoImport        },

src/ca65/scanner.c

@@ -225,6 +225,7 @@ struct DotKeyword {
     { ".IFP816",        TOK_IFP816              },
     { ".IFPC02",        TOK_IFPC02              },
     { ".IFPDTV",        TOK_IFPDTV              },
+    { ".IFPM740",       TOK_IFPM740             },
     { ".IFPSC02",       TOK_IFPSC02             },
     { ".IFREF",         TOK_IFREF               },
     { ".IMPORT",        TOK_IMPORT              },

src/ca65/token.h

@@ -197,6 +197,7 @@ typedef enum token_t {
     TOK_IFP816,
     TOK_IFPC02,
     TOK_IFPDTV,
+    TOK_IFPM740,
     TOK_IFPSC02,
     TOK_IFREF,
     TOK_IMPORT,