Last change
on this file since 444 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
2.1 KB
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Line | |
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1 | /* setjmp/longjmp routines for M68HC11 & M68HC12. |
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2 | * Copyright (C) 1999, 2000, 2001, 2002 Stephane Carrez (stcarrez@nerim.fr) |
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3 | * |
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4 | * The authors hereby grant permission to use, copy, modify, distribute, |
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5 | * and license this software and its documentation for any purpose, provided |
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6 | * that existing copyright notices are retained in all copies and that this |
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7 | * notice is included verbatim in any distributions. No written agreement, |
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8 | * license, or royalty fee is required for any of the authorized uses. |
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9 | * Modifications to this software may be copyrighted by their authors |
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10 | * and need not follow the licensing terms described here, provided that |
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11 | * the new terms are clearly indicated on the first page of each file where |
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12 | * they apply. |
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13 | */ |
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14 | |
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15 | #if __INT__ == 32 |
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16 | # define val 4 |
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17 | # define INT32(X) X |
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18 | #else |
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19 | # define val 2 |
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20 | # define INT32(X) |
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21 | #endif |
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22 | |
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23 | #ifdef mc6811 |
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24 | # define REG(X) *X |
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25 | #else |
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26 | # define REG(X) X |
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27 | #endif |
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28 | |
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29 | .sect .text |
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30 | .global setjmp |
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31 | .global longjmp |
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32 | |
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33 | #ifdef mc6811 |
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34 | setjmp: |
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35 | xgdx |
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36 | tsy |
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37 | ldd 0,y |
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38 | std 0,x |
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39 | sty 2,x |
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40 | ldd REG(_.frame) |
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41 | std 4,x |
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42 | ldd REG(_.d1) |
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43 | std 6,x |
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44 | ldd REG(_.d2) |
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45 | std 8,x |
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46 | ldd REG(_.d3) |
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47 | std 10,x |
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48 | ldd REG(_.d4) |
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49 | std 12,x |
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50 | ldd REG(_.d5) |
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51 | std 14,x |
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52 | ldd REG(_.d6) |
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53 | std 16,x |
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54 | ldd REG(_.d7) |
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55 | std 18,x |
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56 | ldd REG(_.d8) |
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57 | std 20,x |
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58 | INT32( ldx #0) |
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59 | clra |
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60 | clrb |
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61 | rts |
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62 | #else |
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63 | setjmp: |
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64 | xgdx |
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65 | movw 0,sp,2,x+ |
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66 | sts 2,x+ |
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67 | movw _.frame,2,x+ |
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68 | movw _.d1,2,x+ |
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69 | movw _.d2,2,x+ |
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70 | movw _.d3,2,x+ |
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71 | movw _.d4,2,x+ |
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72 | movw _.d5,2,x+ |
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73 | movw _.d6,2,x+ |
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74 | movw _.d7,2,x+ |
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75 | movw _.d8,2,x+ |
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76 | INT32( ldx #0) |
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77 | clra |
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78 | clrb |
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79 | rts |
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80 | #endif |
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81 | |
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82 | #ifdef mc6811 |
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83 | longjmp: |
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84 | xgdx |
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85 | tsy |
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86 | ldd val,y |
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87 | bne do_jump |
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88 | ldd #1 |
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89 | do_jump: |
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90 | xgdy |
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91 | ldd 4,x |
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92 | std REG(_.frame) |
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93 | ldd 6,x |
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94 | std REG(_.d1) |
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95 | ldd 8,x |
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96 | std REG(_.d2) |
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97 | ldd 10,x |
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98 | std REG(_.d3) |
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99 | ldd 12,x |
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100 | std REG(_.d4) |
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101 | ldd 14,x |
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102 | std REG(_.d5) |
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103 | ldd 16,x |
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104 | std REG(_.d6) |
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105 | ldd 18,x |
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106 | std REG(_.d7) |
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107 | ldd 20,x |
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108 | std REG(_.d8) |
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109 | ldd 0,x |
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110 | ldx 2,x |
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111 | txs |
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112 | std 0,x |
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113 | INT32( ldx #0) |
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114 | xgdy |
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115 | rts |
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116 | #else |
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117 | |
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118 | longjmp: |
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119 | xgdx |
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120 | ldy val,sp |
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121 | bne do_jump |
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122 | ldy #1 |
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123 | do_jump: |
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124 | ldd 4,x+ |
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125 | movw 2,x+,_.frame |
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126 | movw 0,x,_.d1 |
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127 | movw 2,x,_.d2 |
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128 | movw 4,x,_.d3 |
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129 | movw 6,x,_.d4 |
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130 | movw 8,x,_.d5 |
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131 | movw 10,x,_.d6 |
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132 | movw 12,x,_.d7 |
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133 | movw 14,x,_.d8 |
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134 | ldx -4,x |
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135 | txs |
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136 | std 0,x |
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137 | INT32( ldx #0) |
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138 | xgdy |
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139 | rts |
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140 | #endif |
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141 | |
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