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Rev | Author | Line No. | Line |
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5305 | codemaster | 1 | ; $$$$$$$$$$$$$$$$$$$ ABAKIS $$$$$$$$$$$$$$$$$$$$$ |
2 | ; *************** STAR^2 SOFTWARE **************** |
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3 | ; ???????????????????? TEXT ?????????????????????? |
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4 | |||
5 | ; fast portable text operations |
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6 | |||
7 | ; text.zero t ; initialize, *t=0 |
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8 | ; text.end t ; return end address (*t=0) |
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9 | ; text.n t ; get # characters |
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10 | ; text.copy a, b ; standard copy with 0 |
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11 | ; text.copy.n... ; copy with maximum size |
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12 | ; text.attach a, b ; attach b to a |
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13 | ; text.attach.c... ; attach c/haracter |
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14 | ; text.compare a, b ; compare lexical. <0> |
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15 | ; text.equal a, b ; equal? return 1/0 |
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16 | ; text.search a, b ; search for text. &/0 |
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17 | ; text.find a, c ; search for c. &/0 |
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18 | ; text.find.r a, c ; search for c in reverse |
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19 | ; text.count.c t, c ; count # of 'c's |
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20 | ; text.count.w t ; count # of words: 'a b c' |
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21 | ; text.count.n t ; count # of lines |
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22 | ; text.go t, n ; advance to line # |
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23 | ; text.upper t ; uppercase |
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24 | ; text.lower t ; lowercase |
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25 | ; text.reverse t ; reverse |
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26 | ; text.begins a, b ; begins with b? |
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27 | ; text.ends a, b ; ends with b? |
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28 | ; text.skip.0 t ; skip '0's. return & |
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29 | ; text.shift.l t, n ; shift characters left |
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30 | ; text.shift.la... ; shift left and assign |
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31 | ; text.expand t, n ; expand; shift right at 0 |
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32 | ; text.align t, n ; align; prefix with '0's |
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33 | |||
34 | ; x2t n, t ; convert number to text |
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35 | ; u2t n, t ; unsigned decimal |
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36 | ; h2t n, t ; hexadecimal |
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37 | ; b2t n, t ; binary |
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38 | |||
39 | ; t2x t ; convert text to number |
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40 | ; t2u t ; unsigned decimal |
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41 | ; t2h t ; hexadecimal |
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42 | ; t2b t ; binary |
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43 | |||
44 | ; print t, f, ... - a fast print formatted |
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45 | ; text to buffer |
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46 | |||
47 | macro debug { callf _say, bug.t, bug.t } |
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48 | |||
49 | RET equ ,0Dh,0Ah, |
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50 | |||
51 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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52 | |||
53 | ; text.zero t - initialize |
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54 | |||
55 | macro text.zero t { . r0=t, *r0=0 } |
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56 | |||
57 | ; text.end t - return end address: *p=0 |
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58 | |||
59 | function text.end, t |
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60 | alias p=r0, c=r1 |
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61 | . p=t, c=1 |
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62 | while c, c=*p++, endw, p-- |
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63 | endf |
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64 | |||
65 | ; text.n t - get length, # characters |
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66 | |||
67 | function text.n, t |
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68 | alias p=r0, s=r1, c=r2 |
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69 | . p=t, s=p, c=1 |
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70 | while c, c=*p++, endw, p-s, p-- |
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71 | endf |
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72 | |||
73 | ; text.copy a, b - standard copy with |
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74 | ; 0 after. return advanced address |
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75 | |||
76 | function text.copy, a, b |
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77 | alias p=r0, s=r1, c=r2 |
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78 | . p=a, s=b, c=1 |
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79 | while c, c=*s++, *p++=c, endw, p-- |
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80 | endf |
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81 | |||
82 | ; text.copy.n a, b, n - copy with maximum |
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83 | ; size specified. return & |
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84 | |||
85 | function text.copy.n, a, b, n |
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86 | alias p=r0, s=r1, c=r2 |
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87 | . p=a, s=b |
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88 | loop n, c=*s++, *p++=c |
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89 | if c=0, break, end |
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90 | endl, p-- |
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91 | endf |
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92 | |||
93 | ; text.attach a, b - attach b to a. return & |
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94 | |||
95 | function text.attach, a, b |
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96 | text.end a |
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97 | text.copy r0, b |
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98 | endf |
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99 | |||
100 | ; text.attach.c t, c - attach c/haracter. |
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101 | ; return & |
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102 | |||
103 | function text.attach.c, t, c |
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104 | alias p=r0, x=r1 |
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105 | text.end t |
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106 | . x=c, *p++=x, *p=0 |
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107 | endf |
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108 | |||
109 | ; text.compare a, b - lexical comparison. |
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110 | ; return <0> |
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111 | |||
112 | function text.compare, a, b |
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113 | alias p=r0, s=r1, c=r2, d=r3 |
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114 | . p=a, s=b, c=d |
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115 | while c=d, c=*p++, d=*s++ |
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116 | if c=0, break, end |
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117 | if d=0, break, end |
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118 | endw, p=c, p-d |
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119 | endf |
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120 | |||
121 | ; text.equal a, b - equal? return 1/0 |
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122 | |||
123 | function text.equal, a, b |
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124 | text.compare a, b |
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125 | if false, return 1, end |
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126 | endf 0 |
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127 | |||
128 | ; text.find t, c - search for character: |
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129 | ; if t contains c. return &/0 |
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130 | |||
131 | function text.find, t, x |
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132 | alias p=r0, c=r1, k=r2 |
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133 | . p=t, k=x |
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134 | loop, c=*p |
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135 | if c=0, return 0, end |
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136 | if c=k, return p, end, p++ |
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137 | endl |
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138 | endf |
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139 | |||
140 | ; text.count.c t, c - count # of c/haracters |
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141 | |||
142 | function text.count.c, t, x |
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143 | locals n |
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144 | alias p=r0, c=r1, k=r2 |
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145 | . p=t, k=x, n=0, c=1 |
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146 | while c, c=*p++ |
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147 | if c=k, n++, end |
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148 | endw |
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149 | endf n |
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150 | |||
151 | ; text.count.w t - count # words 'a b c' |
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152 | |||
153 | function text.count.w, t |
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154 | try text.count.c t, ' ' |
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155 | . r0++ |
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156 | endf |
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157 | |||
158 | ; text.count.n t - count # lines |
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159 | |||
160 | function text.count.n, t |
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161 | try text.count.c t, 0Dh |
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162 | . r0++ |
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163 | endf |
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164 | |||
165 | ; text.go t, n - advance to line # |
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166 | |||
167 | function text.go, t, n |
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168 | loop n |
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169 | try t=text.find t, 0Dh |
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170 | . t+2 |
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171 | endl |
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172 | endf t |
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173 | |||
174 | ; text.upper t - convert to uppercase |
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175 | |||
176 | function text.upper, t |
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177 | alias p=r0, c=r1 |
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178 | . p=t |
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179 | loop, c=*p |
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180 | if c=0, return, end |
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181 | if c>=97 |
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182 | if c<=122, c-32, *p=c, end |
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183 | end, p++ |
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184 | endl |
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185 | endf |
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186 | |||
187 | ; text.lower t - convert to lowercase |
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188 | |||
189 | function text.lower, t |
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190 | alias p=r0, c=r1 |
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191 | . p=t |
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192 | loop, c=*p |
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193 | if c=0, return, end |
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194 | if c>=65 |
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195 | if c<=90, c+32, *p=c, end |
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196 | end, p++ |
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197 | endl |
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198 | endf |
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199 | |||
200 | ; text.reverse t - reverse text |
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201 | |||
202 | function text.reverse, t |
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203 | locals p |
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204 | alias s=r0, e=r1, c=r2 |
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205 | get p=text.end t |
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206 | . e=&(s-1), s=t |
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207 | while s |
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208 | endf p |
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209 | |||
210 | ; text.begins a, b - a begins with b? |
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211 | |||
212 | function text.begins, a, b |
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213 | alias p=r0, q=r1, c=r2, d=r3 |
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214 | . p=a, q=b, d=c |
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215 | while c=d, c=*p++, d=*q++ |
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216 | if c=0, break, end |
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217 | if d=0, break, end |
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218 | endw |
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219 | if d<>0, return 0, end |
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220 | endf |
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221 | |||
222 | ; text.ends a, b - a ends with b? |
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223 | |||
224 | function text.ends, a, b |
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225 | locals p |
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226 | get p=text.end a |
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227 | text.n b |
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228 | . p-r0 |
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229 | text.equal p, b |
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230 | endf |
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231 | |||
232 | ; text.search t, c - search for text: |
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233 | ; if a contains b. return &/0 |
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234 | |||
235 | function text.search, a, b |
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236 | locals n, p |
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237 | get n=text.n a |
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238 | . p=a |
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239 | loop n |
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240 | text.begins p, b |
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241 | if true, return p, end |
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242 | . p++ |
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243 | endl |
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244 | endf 0 |
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245 | |||
246 | ; text.skip.0 a - skip 0s, return address or 0 |
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247 | |||
248 | function text.skip.0, a |
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249 | alias p=r0, c=r1 |
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250 | . p=a, c='0' |
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251 | while c='0', c=*p++, endw, p-- |
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252 | if c=0, return 0, end |
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253 | endf |
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254 | |||
255 | ; shift all characters left |
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256 | |||
257 | ; before: 'abc123' |
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258 | ; after <<3: '123' |
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259 | |||
260 | function text.shift.l, t, n |
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261 | alias p=r0, q=r1 |
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262 | . p=t, q=p, q+n |
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263 | text.copy p, q |
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264 | endf |
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265 | |||
266 | ; shift left and assign s to BITs |
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267 | ; copied out ('abc' in example above) |
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268 | |||
269 | function text.shift.la, t, s, n |
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270 | alias p=r0, q=r1 |
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271 | . p=t, q=p, q+n |
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272 | text.copy.n s, t, n |
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273 | text.shift.l t, n |
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274 | endf |
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275 | |||
276 | ; expand; shift all characters right. |
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277 | ; example: 'abc123' becomes 'XXXabc123' |
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278 | ; after expand 3 where X is unknown |
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279 | |||
280 | function text.expand, t, n |
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281 | locals x |
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282 | alias p=r0, q=r1, c=r2 |
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283 | get x=text.n t |
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284 | . p+t, p--, q=p, p+n, *p=0 |
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285 | loop x, *p--=*q--, endl |
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286 | endf |
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287 | |||
288 | ; prefix text with '0's or ensure maximum n. |
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289 | ; example: before: t='7FAB' |
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290 | ; text.align t, 8 ; after: t='00007FAB' |
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291 | |||
292 | function text.align, t, n |
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293 | locals tn |
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294 | alias n1=r0, n2=r1,\ |
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295 | c=r1, p=r2 |
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296 | get tn=text.n t |
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297 | . n2=n |
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298 | if n1=n2, return, end ; same size |
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299 | if n1>n2, p=t, *(p+n1)=0 ; exceeds maximum |
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300 | return ; end at t+n |
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301 | end, n-n1 ; else, n2>n1 |
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302 | text.expand t, n ; expand t |
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303 | . p=t, c='0' ; write '0's |
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304 | loop n, *p++=c, endl |
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305 | endf |
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306 | |||
307 | ; search text array ta for t using text.equal. |
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308 | ; return index or -1 (<0) if not found. ta is |
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309 | ; an array of text addresses (text[]) |
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310 | |||
311 | function text.array.equal, ta, t, n |
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312 | locals i |
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313 | alias p=r0, q=r1, x=r2 |
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314 | . i=0 |
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315 | loop n, x=i, q=ta, (u32) p=*(q+x*4) |
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316 | text.equal p, t |
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317 | if true, return i, end |
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318 | . i++ |
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319 | endl |
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320 | endf -1 |
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321 | |||
322 | ;;;;;;;;;;;;;;;;;; CONVERSIONS ;;;;;;;;;;;;;;;;;;; |
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323 | |||
324 | ; u2t n, t ; unsigned decimal |
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325 | ; h2t n, t ; hexadecimal |
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326 | ; b2t n, t ; binary |
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327 | |||
328 | ; convert unsigned 32BIT integer to text |
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329 | |||
330 | function u2t, n, t |
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331 | alias i=r0, x=r1, y=r2, c=r3, p=r7 |
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332 | push c p |
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333 | . i=n, p=t |
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334 | if i=0, *p++='0', *p=0 |
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335 | . r0=p |
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336 | go .r |
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337 | end |
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338 | . x=1999999Ah |
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339 | while i, c=i, mul x, i=y, y=&(y+y*4) |
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340 | . y+y, c-y, c+'0', *p++=c |
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341 | endw, *p=0 |
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342 | text.reverse t |
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343 | .r: |
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344 | pop p c |
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345 | endf |
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346 | |||
347 | ; convert 32BIT hexadecimal number to text |
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348 | |||
349 | function h2t, n, t |
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350 | alias p=r0, x=r1 |
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351 | . p=t |
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352 | if n=0, *p++='0', *p=0 |
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353 | return |
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354 | end |
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355 | while n, x=n, x&15 |
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356 | . x=*(@HEX+x), *p++=x, n>>>4 |
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357 | endw, *p=0 |
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358 | text.reverse t |
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359 | endf |
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360 | |||
361 | align @HEX: db '0123456789ABCDEF' |
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362 | |||
363 | ; convert 32BIT binary number to text |
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364 | |||
365 | function b2t, n, t |
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366 | alias p=r0, x=r1 |
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367 | . p=t |
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368 | if n=0, *p++='0', *p=0 |
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369 | return |
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370 | end |
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371 | while n, x=n, x&1, x+'0' |
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372 | . *p++=x, n>>>1 |
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373 | endw, *p=0 |
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374 | text.reverse t |
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375 | endf |
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376 | |||
377 | ; t2u t ; unsigned decimal |
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378 | ; t2h t ; hexadecimal |
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379 | ; t2b t ; binary |
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380 | |||
381 | ; convert text to unsigned 32BIT integer |
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382 | |||
383 | function t2u, t |
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384 | alias p=r0, c=r1, n=r2, x=r3 |
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385 | try text.skip.0 t |
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386 | . n=0 |
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387 | loop, c=*p++ |
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388 | if c=0, return n, end |
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389 | . x=n, x<<2, n+x, n+n, n-'0', n+c |
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390 | endl |
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391 | endf |
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392 | |||
393 | ; convert text to 32BIT hexadecimal |
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394 | |||
395 | function t2h, t |
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396 | alias p=r0, c=r1, n=r2 |
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397 | try text.skip.0 t |
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398 | . n=0 |
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399 | loop, c=*p++ |
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400 | if c=0, return n, end |
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401 | if c<=39h, c-30h |
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402 | else.if c>=61h, c-57h |
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403 | else, c-37h, end, n<<4, n+c |
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404 | endl |
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405 | endf |
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406 | |||
407 | ; convert text to 32BIT binary |
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408 | |||
409 | function t2b, t |
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410 | alias p=r0, c=r1, n=r2 |
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411 | try text.skip.0 t |
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412 | . n=0 |
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413 | loop, c=*p++ |
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414 | if c=0, return n, end |
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415 | . n<<1, n-'0', n+c |
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416 | endl |
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417 | endf |
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418 | |||
419 | ; convert number to text with alignment. |
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420 | ; example: n2t.a 1234h, t, 8, h |
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421 | ; after: t='00001234' |
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422 | |||
423 | macro n2t.a n, t, a, b { |
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424 | b#2t n, t |
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425 | text.align t, a |
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426 | } |
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427 | |||
428 | macro u2t.a n, t, a { n2t.a n, t, a, u } |
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429 | macro h2t.a n, t, a { n2t.a n, t, a, h } |
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430 | macro b2t.a n, t, a { n2t.a n, t, a, b } |
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431 | |||
432 | ;;;;;;;;;;;;;;;;;;;;; PRINT ;;;;;;;;;;;;;;;;;;;;;; |
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433 | |||
434 | ; print t, f, ... - a fast print formatted |
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435 | ; text to buffer |
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436 | |||
437 | ; %t %s - 'text'; "string" |
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438 | ; %c - character |
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439 | ; %n %u - 32BIT decimal unsigned |
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440 | ; %b - 32BIT binary |
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441 | ; %h - 32BIT hexadecimal |
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442 | ; %r - return. insert 0Dh, 0Ah |
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443 | ; %0 - 0/NULL |
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444 | ; %% - % |
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445 | |||
446 | macro print t, f, [p] { |
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447 | common callv !print, t, f, p |
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448 | } |
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449 | |||
450 | ; note: text.copy/reverse/etc and x2t |
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451 | ; must return end (*p=0) address for this |
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452 | |||
453 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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454 | |||
455 | align integer BASE='n' |
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456 | |||
457 | ; !print(n, $t, $f, ...) |
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458 | |||
459 | !print: |
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460 | alias \ ; aliases... |
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461 | s=r6, p=r7,\ ; source, destiny |
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462 | c=r0, i=r1,\ |
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463 | va.s=r2,\ ; &va[...] start |
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464 | va.n=[esp+4],\ ; # va |
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465 | va=[r2+r1*4],\ ; current va[i] |
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466 | n=[.a], z=[.z] ; temporary |
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467 | |||
468 | . (u32) c=*(esp+8) ; text buffer |
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469 | . (u32) i=*(esp+12) ; format |
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470 | . va.s=&(esp+16) ; &va[...] start |
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471 | |||
472 | push s p |
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473 | . p=c, s=i, i=0 ; index=0 |
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474 | |||
475 | .get: . c=*s++ ; get c/haracter |
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476 | if c=0, go .e, end ; end? *s=0 |
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477 | if c<>'%' ; not % |
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478 | .1: . *p++=c ; copy c |
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479 | go .get ; next |
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480 | end |
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481 | . c=*s++ ; %x |
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482 | if c='%', go .1 ; 2 %% = % |
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483 | end |
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484 | |||
485 | if c='0', *p++=0 ; '0' = 0/NULL |
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486 | go .get |
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487 | end |
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488 | |||
489 | if c='r' ; 'r' = return |
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490 | . *p++=\ |
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491 | 0A0Dh, go .get |
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492 | end |
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493 | |||
494 | if c='c' ; %c |
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495 | . c=va, i++ ; get va[i++] |
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496 | . *p++=c |
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497 | go .get |
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498 | end |
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499 | |||
500 | if c='t' |
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501 | .t: ; %t %s - text |
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502 | . z=va, i++ ; get va[i++] |
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503 | pusha |
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504 | get z=\ |
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505 | text.copy p, z ; copy, save & |
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506 | popa |
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507 | . p=z ; advance text buffer |
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508 | go .get |
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509 | end |
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510 | if c='s', go .t |
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511 | end |
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512 | |||
513 | if c='n', go .n, end |
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514 | if c='u', go .n, end |
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515 | if c='h', go .n, end |
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516 | if c='b', go .n, end |
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517 | |||
518 | go .x ; unrecognized |
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519 | |||
520 | .n: |
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521 | . n=va, i++ ; get va[i] |
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522 | pusha ; copy/convert |
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523 | if c='n' ; number to text |
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524 | u2t n, p ; in selected base |
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525 | else.if c='u' |
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526 | u2t n, p |
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527 | else.if c='h' |
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528 | h2t n, p |
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529 | else.if c='b' |
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530 | b2t n, p |
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531 | end |
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532 | . z=r0 ; save end address |
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533 | popa |
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534 | . p=z ; advance text buffer |
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535 | go .get |
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536 | |||
537 | .x: . *p++='?' ; else, unrecognized, |
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538 | go .get ; replace with '?' |
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539 | |||
540 | .0: . r0=0, go .q ; error |
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541 | .e: . r0=p, *r0=0 ; success. terminate |
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542 | .q: ; return end |
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543 | pop p s |
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544 | ret ; callv adjusts esp after |
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545 | |||
546 | endal ; end alias |
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547 | |||
548 | .a dd 0 |
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549 | .z dd 0 |
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550 | |||
551 | ;;;;;;;;;;;;;;; CHARACTER TABLES ;;;;;;;;;;;;;;;;; |
||
552 | |||
553 | ; ILT - insensitive lookup table. A-Z/a-z are |
||
554 | ; the same. this increases processing speed by |
||
555 | ; many times. example: if (tt[a]=tt[b]) instead |
||
556 | ; of: if ((a>='a'&a<='z')&(b>='a'&b<='z')) | |
||
557 | ; ((a>='A'&a<='Z')&(b>='Z'&b<='Z')) |
||
558 | |||
559 | ; TLT - type lookup table. each byte contains |
||
560 | ; C.X BITs to determine its type fast in one |
||
561 | ; comparison. example: if tt[c]&SYMBOL |
||
562 | |||
563 | align 8 |
||
564 | |||
565 | ; byte XLT[128]= |
||
566 | |||
567 | ILT db \ |
||
568 | 00h,01h,02h,03h,04h,05h,06h,07h,08h,09h,0Ah,0Bh,0Ch,0Dh,0Eh,0Fh,\ |
||
569 | 10h,11h,12h,13h,14h,15h,16h,17h,18h,19h,1Ah,1Bh,1Ch,1Dh,1Eh,1Fh,\ |
||
570 | 20h,21h,22h,23h,24h,25h,26h,27h,28h,29h,2Ah,2Bh,2Ch,2Dh,2Eh,2Fh,\ |
||
571 | 30h,31h,32h,33h,34h,35h,36h,37h,38h,39h,3Ah,3Bh,3Ch,3Dh,3Eh,3Fh,\ |
||
572 | 40h,41h,42h,43h,44h,45h,46h,47h,48h,49h,4Ah,4Bh,4Ch,4Dh,4Eh,4Fh,\ |
||
573 | 50h,51h,52h,53h,54h,55h,56h,57h,58h,59h,5Ah,5Bh,5Ch,5Dh,5Eh,5Fh,\ |
||
574 | 60h,41h,42h,43h,44h,45h,46h,47h,48h,49h,4Ah,4Bh,4Ch,4Dh,4Eh,4Fh,\ |
||
575 | 50h,51h,52h,53h,54h,55h,56h,57h,58h,59h,5Ah,7Bh,7Ch,7Dh,7Eh,7Fh |
||
576 | |||
577 | TLT db \ |
||
578 | 00h,80h,80h,80h,80h,80h,80h,80h,80h,80h,40h,80h,80h,40h,80h,80h,\ |
||
579 | 80h,80h,80h,80h,80h,80h,80h,80h,80h,80h,80h,80h,80h,80h,80h,80h,\ |
||
580 | 20h,10h,04h,04h,10h,04h,04h,04h,04h,04h,04h,04h,04h,04h,10h,04h,\ |
||
581 | 01h,01h,01h,01h,01h,01h,01h,01h,01h,01h,04h,04h,04h,04h,04h,10h,\ |
||
582 | 10h,0Ah,0Ah,0Ah,0Ah,0Ah,0Ah,02h,0Ah,02h,02h,0Ah,02h,0Ah,02h,02h,\ |
||
583 | 02h,02h,02h,02h,02h,02h,02h,02h,02h,02h,02h,04h,04h,04h,04h,10h,\ |
||
584 | 04h,0Ah,0Ah,0Ah,0Ah,0Ah,0Ah,02h,0Ah,02h,02h,0Ah,02h,0Ah,02h,02h,\ |
||
585 | 02h,02h,02h,02h,02h,02h,02h,02h,02h,02h,02h,04h,04h,04h,04h,80h |
||
586 | |||
587 | ; 76543210b |
||
588 | C.NULL = 00000000b ; 0 |
||
589 | C.NUMBER = 00000001b ; 0-9 |
||
590 | C.ALPHA = 00000010b ; A-Z, a-z |
||
591 | C.SYMBOL = 00000100b ; all symbols except _.?!@$ |
||
592 | C.NUMERIC = 00001000b ; A-F/a-f, h,b,k,m/H,B,K,M |
||
593 | C.SYMBOLIC = 00010000b ; _.?!@$ |
||
594 | C.SPACE = 00100000b ; ' ', '/t' |
||
595 | C.RETURN = 01000000b ; 0Dh, 0Ah |
||
596 | C.IGNORE = 10000000b ; extended: 1.XXXXXXXb |
||
597 | C.KEYWORD = 11111111b |
||
598 | |||
599 | C.DIGIT = C.NUMBER or C.NUMERIC |
||
600 | C.NAME = C.ALPHA or C.NUMBER or C.SYMBOLIC |
||
601 | C.SYMBOLS = C.SYMBOL or C.SYMBOLIC |
||
602 | C.ALPHAN = C.ALPHA or C.NUMBER |
||
603 | C.VISIBLE = C.ALPHAN or C.SYMBOLS |
||
604 | C.WHITE = C.SPACE or C.RETURN |
||
605 | C.BLANK = C.WHITE or C.IGNORE |
||
606 | C.END = C.SYMBOL or C.WHITE |
||
607 | C.0 = 0 |
||
608 | |||
609 | function is.c, c, type |
||
610 | . r0=c, r0=*(TLT+r0), r0&type |
||
611 | endf |
||
612 | |||
613 | macro if.is c, t { |
||
614 | is.c c, t |
||
615 | if true |
||
616 | } |
||
617 | |||
618 | ;;;;;;;;;;;;;;;;;;; PARSE TEXT ;;;;;;;;;;;;;;;;;;; |
||
619 | |||
620 | ; skip while type and not 0 |
||
621 | |||
622 | ; get p=text.skip.while p, C.WHITE |
||
623 | |||
624 | function text.skip.while, t, type |
||
625 | alias p=r0, q=r1, c=r2 |
||
626 | . p=t, c=1 |
||
627 | while c, c=*p++ |
||
628 | . c=*(TLT+c), c&type |
||
629 | endw, p-- |
||
630 | endf |
||
631 | |||
632 | ; skip until type and while not 0. |
||
633 | ; kind of tricky |
||
634 | |||
635 | ; get p=text.skip.until p, C.RETURN |
||
636 | |||
637 | function text.skip.until, t, type |
||
638 | alias p=r0, q=r1, c=r2 |
||
639 | . p=t, c=0 |
||
640 | while c=0, c=*p++ |
||
641 | if c=0, return 0, end |
||
642 | . c=*(TLT+c), c&type |
||
643 | endw, p-- |
||
644 | endf |
||
645 | |||
646 | ; copy while type and not 0 |
||
647 | |||
648 | ; get s=text.copy.while t, s, C.NAME |
||
649 | |||
650 | function text.copy.while, t, s, type |
||
651 | alias a=r7, b=r6, c=r1, x=r2 |
||
652 | . a=t, b=s, c=*b |
||
653 | if c=0, return 0, end |
||
654 | while c, c=*b++, *a++=c |
||
655 | . x=*(TLT+c), x&type |
||
656 | if x=0, break, end |
||
657 | endw, a--, *a=0, b-- |
||
658 | endf b |
||
659 | |||
660 | ; copy until type and while not 0 |
||
661 | |||
662 | ; get s=text.copy.until t, s, C.END |
||
663 | |||
664 | function text.copy.until, t, s, type |
||
665 | alias a=r7, b=r6, c=r1, x=r2 |
||
666 | . a=t, b=s, c=*b |
||
667 | if c=0, return 0, end |
||
668 | while c, c=*b++, *a++=c |
||
669 | . x=*(TLT+c), x&type |
||
670 | if x, break, end |
||
671 | endw, a--, *a=0, b-- |
||
672 | endf b |
||
673 | |||
674 | ; copy until 'c'/x. if 0 or return is |
||
675 | ; encountered before, return 0 |
||
676 | |||
677 | function text.copy.until.c, t, s, x |
||
678 | alias a=r7, b=r6, c=r1 |
||
679 | . a=t, b=s, c=*b |
||
680 | if c=0, return 0, end |
||
681 | while c, c=*b++, *a++=c |
||
682 | if c=x, break, end |
||
683 | if c=0, return 0, end |
||
684 | if c=0Dh, return 0, end |
||
685 | endw, a--, *a=0, b-- |
||
686 | endf b |
||
687 | |||
688 | ; skip whitespace and returns |
||
689 | ; (if parse.skip.r?) or only spaces |
||
690 | ; and tabs. return advanced & |
||
691 | |||
692 | align boolean parse.skip.r?=YES |
||
693 | |||
694 | function text.skip.ws, t |
||
695 | if parse.skip.r? |
||
696 | text.skip.while t, C.WHITE |
||
697 | else |
||
698 | text.skip.while t, C.SPACE |
||
699 | end |
||
700 | endf |
||
701 | |||
702 | ; skip all whitespace, returns |
||
703 | ; (if parse.skip.r?) and comments. |
||
704 | ; return advanced & |
||
705 | |||
706 | function text.skip.x, t |
||
707 | locals q |
||
708 | alias p=r0, c=r1 |
||
709 | . p=t, q=p |
||
710 | .get: |
||
711 | . p=q, c=*p |
||
712 | if c=0 |
||
713 | return 0 |
||
714 | end |
||
715 | if.is c, C.WHITE |
||
716 | try q=text.skip.ws q |
||
717 | end |
||
718 | . p=q, c=*p |
||
719 | if c=';' |
||
720 | try q=text.skip.until \ |
||
721 | q, C.RETURN |
||
722 | . p+2 |
||
723 | go .get |
||
724 | end |
||
725 | endf q |
||
726 | |||
727 | function text.get, a, b |
||
728 | locals q |
||
729 | alias p=r0, c=r1 |
||
730 | . q=b |
||
731 | try q=text.skip.x q |
||
732 | . c=*p |
||
733 | if c=0, return 0, end |
||
734 | if.is c, C.SYMBOL |
||
735 | . p=a, *p++=c, *p=0, q++ |
||
736 | return q |
||
737 | end |
||
738 | text.copy.until a, q, C.END |
||
739 | endf |
||
740 | |||
741 | ;;;;;;;;;;;;;;;; SOURCE, DESTINY ;;;;;;;;;;;;;;;;; |
||
742 | |||
743 | align |
||
744 | |||
745 | void source.p, destiny.p, token.p |
||
746 | integer source.n, destiny.n, token.n |
||
747 | |||
748 | macro set.source p { . source.p=p } |
||
749 | macro set.destiny p { . destiny.p=p } |
||
750 | macro set.token p { . token.p=p } |
||
751 | |||
752 | function skip.while, type |
||
753 | get source.p=text.skip.while \ |
||
754 | source.p, type |
||
755 | endf |
||
756 | |||
757 | function skip.until, type |
||
758 | get source.p=text.skip.until \ |
||
759 | source.p, type |
||
760 | endf |
||
761 | |||
762 | function copy.while, type |
||
763 | get source.p=text.copy.while \ |
||
764 | token.p, source.p, type |
||
765 | endf |
||
766 | |||
767 | function copy.until, type |
||
768 | get source.p=text.copy.until \ |
||
769 | token.p, source.p, type |
||
770 | endf |
||
771 | |||
772 | function copy.until.c, c |
||
773 | get source.p=text.copy.until.c \ |
||
774 | token.p, source.p, c |
||
775 | endf |
||
776 | |||
777 | macro skip.space { skip.while C.SPACE } |
||
778 | macro skip.white { skip.while C.WHITE } |
||
779 | macro skip.line { skip.until C.RETURN } |
||
780 | |||
781 | ; skip all whitespace, returns |
||
782 | ; (if parse.skip.r?) and comments. |
||
783 | ; return advanced & |
||
784 | |||
785 | function skip.x |
||
786 | alias p=r0, c=r1 |
||
787 | .get: |
||
788 | . p=source.p, c=*p |
||
789 | if c=0, return 0, end |
||
790 | if.is c, C.WHITE |
||
791 | try skip.while C.WHITE |
||
792 | end |
||
793 | . p=source.p, c=*p |
||
794 | if c=';' |
||
795 | try skip.until C.RETURN |
||
796 | . source.p+2 |
||
797 | go .get |
||
798 | end |
||
799 | . p=source.p |
||
800 | endf p |
||
801 | |||
802 | ; get token |
||
803 | |||
804 | function get.token |
||
805 | alias p=r0, c=r1 |
||
806 | try skip.x |
||
807 | . c=*p |
||
808 | if c=0, return 0, end |
||
809 | if.is c, C.SYMBOL |
||
810 | . p=token.p, *p++=c, *p++=0 |
||
811 | . source.p++, p=source.p |
||
812 | if c='''', c=*p |
||
813 | if c='''', source.p++ |
||
814 | return source.p |
||
815 | end |
||
816 | try copy.until.c '''' |
||
817 | . source.p++ |
||
818 | end |
||
819 | . p=source.p |
||
820 | return |
||
821 | end |
||
822 | copy.until C.END |
||
823 | endf |
||
824 | |||
825 | ; MOVE TO PARSE.INC... |
||
826 | |||
827 | ;;;;;;;;;;;;;;;;;;; NAME TABLE ;;;;;;;;;;;;;;;;;;; |
||
828 | |||
829 | ; name table: |
||
830 | |||
831 | ; 'ann',0, 'kim',0, 'sue',0 |
||
832 | |||
833 | align 4 |
||
834 | |||
835 | void name.table, name.table.p,\ |
||
836 | name.table.n, name.table.size, name.table.end |
||
837 | |||
838 | ; allocate name.table |
||
839 | |||
840 | function create.name.table, size |
||
841 | try name.table=call !allocate, size |
||
842 | . name.table.p=r0, r0+size |
||
843 | . name.table.end=r0, name.table.n=0 |
||
844 | . name.table.size=0 |
||
845 | endf 1 |
||
846 | |||
847 | ; get name address by index |
||
848 | |||
849 | function get.name, i |
||
850 | locals p |
||
851 | . p=name.table |
||
852 | loop i |
||
853 | get p=text.end p |
||
854 | . p++ |
||
855 | endl |
||
856 | endf p |
||
857 | |||
858 | ; search for name. return index or -1 |
||
859 | |||
860 | function search.name, t |
||
861 | locals i, p |
||
862 | . p=name.table, i=name.table.n |
||
863 | loop i |
||
864 | get.name i |
||
865 | text.equal p, r0 |
||
866 | if true, return i, end |
||
867 | endl |
||
868 | endf -1 |
||
869 | |||
870 | ; attach 'text'. return address |
||
871 | |||
872 | function create.name, t |
||
873 | locals p, n |
||
874 | . p=name.table.p |
||
875 | text.n t |
||
876 | . r0++, n=r0, r0+p |
||
877 | if r0>=name.table.end |
||
878 | return 0 |
||
879 | end |
||
880 | text.copy name.table.p, t |
||
881 | . r0=p, r0+n, name.table.p=r0 |
||
882 | . name.table.n++, r0=n |
||
883 | . name.table.size+r0 |
||
884 | endf p |
||
885 | |||
886 | ; remove name at index |
||
887 | |||
888 | function remove.name, i |
||
889 | locals p, q, n, size |
||
890 | get p=get.name i |
||
891 | get n=text.n p |
||
892 | . i++ |
||
893 | get q=get.name i |
||
894 | . r0=name.table.p, r0+name.table.size |
||
895 | . r0-p, size=r0, r0=n |
||
896 | . name.table.size-r0, name.table.p-r0 |
||
897 | memory.copy p, q, size |
||
898 | . name.table.n-- |
||
899 | endf |
||
900 | |||
901 | ; get name at index |
||
902 | |||
903 | function copy.name, i, t |
||
904 | get.name i |
||
905 | text.copy t, r0 |
||
906 | endf |
||
907 | |||
908 | ; name structure: 16 bytes |
||
909 | |||
910 | virtual at 0 |
||
911 | ?define: |
||
912 | .type dd 0 ; type: TTTT... |
||
913 | .value dd 0 ; name index |
||
914 | .name dd 0 ; value or index |
||
915 | .i dd 0 ; anything, align 16 |
||
916 | .$=$ |
||
917 | END virtual |
||
918 | |||
919 | powers DEFINE.*, ALIVE, USED,\ |
||
920 | D, ABLE, NUMERIC |
||
921 | |||
922 | ; .type = |
||
923 | |||
924 | ; TTTT.SSSS XXXXXXXX XXXXXXXX XXX.NR.DUA |
||
925 | ; 23-16 15-8 7-0 |
||
926 | |||
927 | ; T: type: number, define, constant, label, |
||
928 | ; macro, register, instruction, variable |
||
929 | ; S: data size |
||
930 | ; P: parameter 1 |
||
931 | ; Q: parameter 2 |
||
932 | ; X: anything |
||
933 | ; N: 1=numeric, 0=symbolic |
||
934 | ; R: 1=redefinable, 0=not |
||
935 | ; D: 1=defined, 0=not |
||
936 | ; U: 1=used, 0=not |
||
937 | ; A: 1=alive, 0=dead |
||
938 | |||
939 | ; name structures. last structure is |
||
940 | ; defines.p+((defines.n-1)*48) |
||
941 | |||
942 | align 4 |
||
943 | |||
944 | void defines.p ; name structures |
||
945 | void defines.end.p ; end allocation |
||
946 | integer defines.n |
||
947 | |||
948 | ;;;;;;;;;;;;;;;;;;;;; ERRORS ;;;;;;;;;;;;;;;;;;;;; |
||
949 | |||
950 | ; MOVE TO ASSEMBLER.INC |
||
951 | |||
952 | text errors.ta[]=\ |
||
953 | E.NONE ='None',\ |
||
954 | E.SYNTAX ='Syntax',\ |
||
955 | E.LOAD ='Error loading',\ |
||
956 | E.FILE ='File I/O error',\ |
||
957 | E.UNEXPECT ='Unexpected',\ |
||
958 | E.CPU ='Unsupported by CPU',\ |
||
959 | E.ADDRESS ='Address not aligned',\ |
||
960 | E.OPERANDS ='Invalid operand/s',\ |
||
961 | E.AMODE ='Invalid addressing mode',\ |
||
962 | E.SHIFT ='Invalid shift #',\ |
||
963 | E.NUMBER ='Invalid number',\ |
||
964 | E.NUMBER2 ='Number can''t be encoded',\ |
||
965 | E.VALUE ='Value exceeds size',\ |
||
966 | E.ALIGN ='Number must be aligned',\ |
||
967 | E.POWER ='# must be power of 2',\ |
||
968 | E.REGISTER ='Register expected',\ |
||
969 | E.EXPECTN ='Number expected',\ |
||
970 | E.EXPECTA ='Name expected',\ |
||
971 | E.INAME ='Invalid name',\ |
||
972 | E.NAME ='Name too long',\ |
||
973 | E.RESERVE ='Reserved name',\ |
||
974 | E.UNDEFINE ='Undefined',\ |
||
975 | E.REDEFINE ='Redefinition',\ |
||
976 | E.EXPECTT ='Text expected',\ |
||
977 | E.ENDT ='Text has no end ''',\ |
||
978 | E.COMMA =', expected',\ |
||
979 | E.END ='end expected',\ |
||
980 | E.MISMATCH ='Mismatched parenthesis' |
||
981 | |||
982 | ;;;;;;;;;;;;;;;;;;; KEYWORDS ;;;;;;;;;;;;;;;;;;;;; |
||
983 | |||
984 | ; MOVE TO ASSEMBLER.INC |
||
985 | |||
986 | text keywords.ta[]=\ |
||
987 | K.ALIGN='align', K.BYTE='byte',\ |
||
988 | K.D1='d1', K.D2='d2', K.D4='d4', K.D8='d8',\ |
||
989 | K.DEFINE='define', K.DOUBLE='double',\ |
||
990 | K.EQUATE='equate', K.FLOAT='float',\ |
||
991 | K.FORMAT='format', K.INCLUDE='include',\ |
||
992 | K.INJECT='inject', K.INTEGER='integer',\ |
||
993 | K.MAIN='main', K.ORG='org',\ |
||
994 | K.RESTORE='restore', K.TEXT='text',\ |
||
995 | K.USE='use', K.VOID='void' |
||
996 | |||
997 | align 4 |
||
998 | |||
999 | void keywords.ta.p=keywords.ta |
||
1000 | integer keywords.n=keywords.ta.$ |
||
1001 | |||
1002 | function is.keyword, t |
||
1003 | if keywords.n=0, return -1, end |
||
1004 | text.array.equal \ |
||
1005 | keywords.ta.p, t, keywords.n |
||
1006 | endf='Z')) |