git.sur5r.net Git - cc65/blob - ca65/macpack.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                 macpack.c                                 */
   4 /*                                                                           */
   5 /*           Predefined macro packages for the ca65 macroassembler           */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 1998     Ullrich von Bassewitz                                        */
  10 /*              Wacholderweg 14                                              */
  11 /*              D-70597 Stuttgart                                            */
  12 /* EMail:       uz@musoftware.de                                             */
  13 /*                                                                           */
  14 /*                                                                           */
  15 /* This software is provided 'as-is', without any expressed or implied       */
  16 /* warranty.  In no event will the authors be held liable for any damages    */
  17 /* arising from the use of this software.                                    */
  18 /*                                                                           */
  19 /* Permission is granted to anyone to use this software for any purpose,     */
  20 /* including commercial applications, and to alter it and redistribute it    */
  21 /* freely, subject to the following restrictions:                            */
  22 /*                                                                           */
  23 /* 1. The origin of this software must not be misrepresented; you must not   */
  24 /*    claim that you wrote the original software. If you use this software   */
  25 /*    in a product, an acknowledgment in the product documentation would be  */
  26 /*    appreciated but is not required.                                       */
  27 /* 2. Altered source versions must be plainly marked as such, and must not   */
  28 /*    be misrepresented as being the original software.                      */
  29 /* 3. This notice may not be removed or altered from any source              */
  30 /*    distribution.                                                          */
  31 /*                                                                           */
  32 /*****************************************************************************/
  33
  34
  35
  36 #include "error.h"
  37 #include "scanner.h"
  38 #include "macpack.h"
  39
  40
  41
  42 /*****************************************************************************/
  43 /*                                   Data                                    */
  44 /*****************************************************************************/
  45
  46
  47
  48 /* Predefined packages */
  49 static const char MacGeneric [] =       /* Generic macros */
  50     ".macro  add     Arg\n"
  51     "        clc\n"
  52     "        adc     Arg\n"
  53     ".endmacro\n\n"
  54     ".macro  sub     Arg\n"
  55     "        sec\n"
  56     "        sbc     Arg\n"
  57     ".endmacro\n\n";
  58
  59
  60
  61 static const char MacLongBranch [] =    /* Long branch macros */
  62     ".macro  jeq     Target\n"
  63     "        .if     .def(Target) .and ((*+2)-(Target) <= 127)\n"
  64     "        beq     Target\n"
  65     "        .else\n"
  66     "        bne     *+5\n"
  67     "        jmp     Target\n"
  68     "        .endif\n"
  69     ".endmacro\n\n"
  70     ".macro  jne     Target\n"
  71     "        .if     .def(Target) .and ((*+2)-(Target) <= 127)\n"
  72     "        bne     Target\n"
  73     "        .else\n"
  74     "        beq     *+5\n"
  75     "        jmp     Target\n"
  76     "        .endif\n"
  77     ".endmacro\n\n"
  78     ".macro  jmi     Target\n"
  79     "        .if     .def(Target) .and ((*+2)-(Target) <= 127)\n"
  80     "        bmi     Target\n"
  81     "        .else\n"
  82     "        bpl     *+5\n"
  83     "        jmp     Target\n"
  84     "        .endif\n"
  85     ".endmacro\n\n"
  86     ".macro  jpl     Target\n"
  87     "        .if     .def(Target) .and ((*+2)-(Target) <= 127)\n"
  88     "        bpl     Target\n"
  89     "        .else\n"
  90     "        bmi     *+5\n"
  91     "        jmp     Target\n"
  92     "        .endif\n"
  93     ".endmacro\n\n"
  94     ".macro  jcs     Target\n"
  95     "        .if     .def(Target) .and ((*+2)-(Target) <= 127)\n"
  96     "        bcs     Target\n"
  97     "        .else\n"
  98     "        bcc     *+5\n"
  99     "        jmp     Target\n"
 100     "        .endif\n"
 101     ".endmacro\n\n"
 102     ".macro  jcc     Target\n"
 103     "        .if     .def(Target) .and ((*+2)-(Target) <= 127)\n"
 104     "        bcc     Target\n"
 105     "        .else\n"
 106     "        bcs     *+5\n"
 107     "        jmp     Target\n"
 108     "        .endif\n"
 109     ".endmacro\n\n"
 110     ".macro  jvs     Target\n"
 111     "        .if     .def(Target) .and ((*+2)-(Target) <= 127)\n"
 112     "        bvs     Target\n"
 113     "        .else\n"
 114     "        bvc     *+5\n"
 115     "        jmp     Target\n"
 116     "        .endif\n"
 117     ".endmacro\n\n"
 118     ".macro  jvc     Target\n"
 119     "        .if     .def(Target) .and ((*+2)-(Target) <= 127)\n"
 120     "        bvc     Target\n"
 121     "        .else\n"
 122     "        bvs     *+5\n"
 123     "        jmp     Target\n"
 124     "        .endif\n"
 125     ".endmacro\n\n";
 126
 127
 128
 129 /* Table with pointers to the different packages */
 130 static const char* MacPackages [] = {
 131     MacGeneric,
 132     MacLongBranch,
 133 };
 134
 135
 136
 137 /*****************************************************************************/
 138 /*                                   Code                                    */
 139 /*****************************************************************************/
 140
 141
 142
 143 void InsertMacPack (unsigned Id)
 144 /* Insert the macro package with the given id in the input stream */
 145 {
 146     /* Check the parameter */
 147     CHECK (Id < sizeof (MacPackages) / sizeof (MacPackages [0]));
 148
 149     /* Insert the package */
 150     NewInputData (MacPackages [Id], 0);
 151 }
 152
 153
 154