| 1 | SECT BTSET |
| 2 | ENTRY ISHFT |
| 3 | ENTRY BITSET |
| 4 | ENTRY #ANDER |
| 5 | EXTERN #RETRN |
| 6 | EXTERN #FIX |
| 7 | SECT8 BITTER |
| 8 | |
| 9 | #ANDER, TAD #XR /Simple masking |
| 10 | AND #XR+1 |
| 11 | DCA #XR |
| 12 | CIF CDF |
| 13 | JMP% #XR+2 / Return |
| 14 | |
| 15 | /FPP code here; using the rest of the SECT8 page. |
| 16 | |
| 17 | SECNAM, TEXT +BITSET+ /For traceback |
| 18 | #RET, SETX #XR /Traceback |
| 19 | SETB #BASE |
| 20 | JA .+3 |
| 21 | #BASE, ORG .+3 /Base 0 |
| 22 | N, ORG .+3 /Base 1 - value |
| 23 | L, ORG .+3 |
| 24 | #BSET, TEXT +BITSET+ /Base 2 - section name |
| 25 | #ISH, TEXT +ISHFT + /Base 3 |
| 26 | |
| 27 | / Now at address 23, past autoindex registers. |
| 28 | #XR, FNOP /Base 5: XR 0 |
| 29 | ADDR #RETRN / XR 1; XR2 return to FRTS address. |
| 30 | |
| 31 | ORG #XR+10 /Past index regs, same as - |
| 32 | |
| 33 | ORG #BASE+30 /30 (base page) |
| 34 | FNOP |
| 35 | JA #RET |
| 36 | FNOP |
| 37 | #GOBAK, 0;0 |
| 38 | #LBL=. |
| 39 | COMMON MISCOM |
| 40 | LINUSE, ORG .+0003 |
| 41 | TRVS, ORG .+0003 |
| 42 | CLSSES, ORG .+0003 |
| 43 | OLDLOC, ORG .+0003 |
| 44 | LOC, ORG .+0003 |
| 45 | CVAL, ORG .+0044 |
| 46 | TK, ORG .+0074 |
| 47 | NEWLOC, ORG .+0003 |
| 48 | KEY, ORG .+0702 |
| 49 | PLAC, ORG .+0454 |
| 50 | FIXD, ORG .+0454 |
| 51 | ACTSPK, ORG .+0151 |
| 52 | COND, ORG .+0702 |
| 53 | HINTS, ORG .+0360 |
| 54 | HNTMAX, ORG .+0003 |
| 55 | PROP, ORG .+0454 |
| 56 | TALLY, ORG .+0003 |
| 57 | TALLY2, ORG .+0003 |
| 58 | HINTLC, ORG .+0074 |
| 59 | CHLOC, ORG .+0003 |
| 60 | CHLOC2, ORG .+0003 |
| 61 | DSEEN, ORG .+0022 |
| 62 | DFLAG, ORG .+0003 |
| 63 | DLOC, ORG .+0022 |
| 64 | DALTLC, ORG .+0003 |
| 65 | KEYS, ORG .+0003 |
| 66 | LAMP, ORG .+0003 |
| 67 | GRATE, ORG .+0003 |
| 68 | CAGE, ORG .+0003 |
| 69 | ROD, ORG .+0003 |
| 70 | ROD2, ORG .+0003 |
| 71 | STEPS, ORG .+0003 |
| 72 | BIRD, ORG .+0003 |
| 73 | DOOR, ORG .+0003 |
| 74 | PILLOW, ORG .+0003 |
| 75 | SNAKE, ORG .+0003 |
| 76 | FISSUR, ORG .+0003 |
| 77 | TABLET, ORG .+0003 |
| 78 | CLAM, ORG .+0003 |
| 79 | OYSTER, ORG .+0003 |
| 80 | MAGZIN, ORG .+0003 |
| 81 | DWARF, ORG .+0003 |
| 82 | KNIFE, ORG .+0003 |
| 83 | FOOD, ORG .+0003 |
| 84 | BOTTLE, ORG .+0003 |
| 85 | WATER, ORG .+0003 |
| 86 | OIL, ORG .+0003 |
| 87 | PLANT, ORG .+0003 |
| 88 | PLANT2, ORG .+0003 |
| 89 | AXE, ORG .+0003 |
| 90 | MIRROR, ORG .+0003 |
| 91 | DRAGON, ORG .+0003 |
| 92 | CHASM, ORG .+0003 |
| 93 | TROLL, ORG .+0003 |
| 94 | TROLL2, ORG .+0003 |
| 95 | BEAR, ORG .+0003 |
| 96 | MESSAG, ORG .+0003 |
| 97 | VEND, ORG .+0003 |
| 98 | BATTER, ORG .+0003 |
| 99 | NUGGET, ORG .+0003 |
| 100 | COINS, ORG .+0003 |
| 101 | CHEST, ORG .+0003 |
| 102 | EGGS, ORG .+0003 |
| 103 | TRIDNT, ORG .+0003 |
| 104 | VASE, ORG .+0003 |
| 105 | EMRALD, ORG .+0003 |
| 106 | PYRAM, ORG .+0003 |
| 107 | PEARL, ORG .+0003 |
| 108 | RUG, ORG .+0003 |
| 109 | CHAIN, ORG .+0003 |
| 110 | BACK, ORG .+0003 |
| 111 | LOOK, ORG .+0003 |
| 112 | CAVE, ORG .+0003 |
| 113 | NULL, ORG .+0003 |
| 114 | ENTRNC, ORG .+0003 |
| 115 | DPRSSN, ORG .+0003 |
| 116 | SAY, ORG .+0003 |
| 117 | LOCK, ORG .+0003 |
| 118 | THROW, ORG .+0003 |
| 119 | FIND, ORG .+0003 |
| 120 | INVENT, ORG .+0003 |
| 121 | TURNS, ORG .+0003 |
| 122 | LMWARN, ORG .+0003 |
| 123 | KNFLOC, ORG .+0003 |
| 124 | DETAIL, ORG .+0003 |
| 125 | ABBNUM, ORG .+0003 |
| 126 | NUMDIE, ORG .+0003 |
| 127 | MAXDIE, ORG .+0003 |
| 128 | DKILL, ORG .+0003 |
| 129 | FOOBAR, ORG .+0003 |
| 130 | BONUS, ORG .+0003 |
| 131 | CLOCK1, ORG .+0003 |
| 132 | CLOCK2, ORG .+0003 |
| 133 | CLOSNG, ORG .+0003 |
| 134 | PANIC, ORG .+0003 |
| 135 | CLOSED, ORG .+0003 |
| 136 | GAVEUP, ORG .+0003 |
| 137 | SCORNG, ORG .+0003 |
| 138 | ODLOC, ORG .+0022 |
| 139 | STREAM, ORG .+0003 |
| 140 | SPICES, ORG .+0003 |
| 141 | ORG #LBL |
| 142 | |
| 143 | COUNT, ORG .+3 |
| 144 | ONE, F 1.0 |
| 145 | |
| 146 | |
| 147 | /BITSET(L,N) = (COND(L).AND.ISHFT(1,N)) .NE.0 |
| 148 | |
| 149 | BITSET, FLDA #BSET /Section name |
| 150 | JSA GETARG /Common setup |
| 151 | |
| 152 | BASE #BASE |
| 153 | FLDA% L /Get array index |
| 154 | ATX 1 |
| 155 | FLDA COND-3,1 /COND(L) |
| 156 | FSTA ITEST / COND(L) |
| 157 | LDX 1,0 /Put 1 into shift value |
| 158 | FLDA% N /Get N value |
| 159 | JEQ #1 /No shift if zero |
| 160 | FNEG /Negate |
| 161 | ATX 1 /Into register |
| 162 | XTA 0 /Get the "1" back |
| 163 | ALN 0 /Align to right |
| 164 | STARTD |
| 165 | ALN 1 /Do the shift |
| 166 | STARTF |
| 167 | ATX 0 /Put result in place |
| 168 | #1, XTA 0 /Get result |
| 169 | JSA #FIX |
| 170 | ATX 0 /One mask value |
| 171 | FLDA ITEST |
| 172 | JSA #FIX |
| 173 | ATX 1 /The other |
| 174 | TRAP3 #ANDER /AND it |
| 175 | XTA 0 /Restore value |
| 176 | JEQ #GOBAK /Return if zero |
| 177 | FLDA ONE /Else one |
| 178 | JA #GOBAK /Done. |
| 179 | ITEST, ORG .+3 /Test value |
| 180 | |
| 181 | / |
| 182 | / ISHFT entry point |
| 183 | / |
| 184 | BASE 0 |
| 185 | |
| 186 | ISHFT, FLDA #ISH /Section name |
| 187 | JSA GETARG /Common setup |
| 188 | |
| 189 | BASE #BASE |
| 190 | FLDA% N /Get shift count |
| 191 | JEQ #SKIP /No need to shift |
| 192 | FNEG /Negative shift count goes left |
| 193 | ATX 1 /Into XR 1 |
| 194 | FLDA% L /Get value to shift |
| 195 | ALN 0 /Align to right |
| 196 | STARTD |
| 197 | ALN 1 /Shift |
| 198 | STARTF /Done |
| 199 | JSA #FIX |
| 200 | JA #GOBAK /Done |
| 201 | #SKIP, FLDA% L /Get value back |
| 202 | JA #GOBAK /Done |
| 203 | |
| 204 | GETARG, 0;0 /Common setup routine |
| 205 | FSTA SECNAM /AC has section name |
| 206 | STARTD |
| 207 | 0210 /Get caller's return |
| 208 | FSTA #GOBAK,0 |
| 209 | 0200 /Get arg list |
| 210 | SETX #XR /Set up index registers |
| 211 | SETB #BASE /Set up base page |
| 212 | FSTA #BASE /Set up arg list |
| 213 | LDX 0,1 |
| 214 | FLDA% #BASE,1+ /Get first arg |
| 215 | FSTA L |
| 216 | FLDA% #BASE,1+ /Second arg |
| 217 | FSTA N |
| 218 | STARTF |
| 219 | JA GETARG /Return |
| 220 | END |