projects / pdp8.git / blame
| Commit | Line | Data |
|---|---|---|
| 81e70d48 PH |
1 | /******************************************************************** |
| 2 | /******************************************************************** | |
| 3 | / THE IMPORTANT ZERO PAGE STUFF | |
| 4 | ||
| 5 | *0 | |
| 6 | INTR, 0 / INTERRUPT LOCATION | |
| 7 | JMP I XIHAND / JUMP TO INTERRUPT HANDLER | |
| 8 | XIHAND, IHAND / POINTER TO INTERRUPT HANDLER | |
| 9 | ||
| 10 | ||
| 11 | ||
| 12 | *10 | |
| 13 | AUTO0, 0 | |
| 14 | AUTO1, 0 | |
| 15 | AUTO2, 0 | |
| 16 | AUTO3, 0 | |
| 17 | AUTO4, 0 | |
| 18 | AUTO5, 0 | |
| 19 | AUTO6, 0 | |
| 20 | AUTO7, 0 | |
| 21 | ||
| 22 | *40 | |
| 23 | / MAJOR POINERS | |
| 24 | SPTR, DATA0 / POINTER TO SOURCE DATA (GET, COUNT) | |
| 25 | TPTR, DATA1 / POINTER TO TARGET DATA (SET, RESET) | |
| 26 | DPTR, DATA0 / POINTER TO DUMP DATA | |
| 27 | ||
| 28 | /************************************************* | |
| 29 | DFLAGS, 0 / DISPLAY CONTROL WORD | |
| 30 | ||
| 31 | ||
| 32 | /************************************************* | |
| 33 | / TEMPORARY CHICKENS | |
| 34 | ||
| 35 | ||
| 36 | ||
| 37 | / KEYBOARD COMMANDS | |
| 38 | CMKILL, 0 | |
| 39 | CMDUMP, 0 | |
| 40 | ||
| 41 | /******************************************************************** | |
| 42 | / ZERO PAGE CONSTANTS | |
| 43 | ||
| 44 | K7, 7 | |
| 45 | K10, 10 | |
| 46 | K77, 77 | |
| 47 | K200, 200 | |
| 48 | K377, 377 | |
| 49 | K7700, 7700 | |
| 50 | ||
| 51 | KROWS, PROWS | |
| 52 | KCOLS, PCOLS | |
| 53 | ||
| 54 | KDEAD, DEAD | |
| 55 | KALIVE, ALIVE | |
| 56 | ||
| 57 | KNMCO, 1-PCOLS / NEGATIVE OF LAST COLUMN ADDRESS | |
| 58 | KNMROW, 1-PROWS / NEGATIVE OF LAST ROW ADDRESS | |
| 59 | KBORD, BORDER | |
| 60 | ||
| 61 | KCOLM1, -1 | |
| 62 | KCOLP1, 1 | |
| 63 | KROWM1, -100 | |
| 64 | KROWP1, 100 | |
| 65 | ||
| 66 | /******************************************************************** | |
| 67 | / ZERO PAGE POINTERS AND SHORTCUTS | |
| 68 | ||
| 69 | XDUMPS, DUMPS / START DATA DUMP | |
| 70 | XDUMPT, DUMPT / START DATA DUMP | |
| 71 | XDUMP, DUMP | |
| 72 | XCALC, CALC | |
| 73 | XGET, GET / GET A CELL STATE | |
| 74 | XSET, SET / SET A CELL TO LIVING | |
| 75 | XCLEAR, CLEAR / SET A CELL TO DEAD | |
| 76 | XEXIT, EXIT | |
| 77 | XCOUNT, COUNT | |
| 78 | ||
| 79 | XDINIT, DINIT | |
| 80 | ||
| 81 | /************************************************* | |
| 82 | / POINTERS TO DISPLAY API ROUTINES | |
| 83 | ||
| 84 | XDSSET, DSSET / SET THE CURSOR TO A SPECIFIED POSITION | |
| 85 | XDCLS, DSCLS / CLEAR SCREEN | |
| 86 | XDSEOL, DSEOL / CLEAR FROM CURSOR POSITION TO END OF LINE | |
| 87 | XDSEOS, DSEOS / CLEAR FROM CURSOR POSITION TO END OF SCREEN | |
| 88 | XDSOUT, DSOUT / SEND A CHARACTER TO THE SCREEN | |
| 89 | XDSBEL, DSBEL / MAKE SOME NOISE | |
| 90 |