sw/src/pascal/PASCAL.HL

   1 /
   2 /NOTES ON PASCAL-S COMPILER FOR PDP-8/E
   3 /======================================
   4 /
   5 /
   6 /
   7 /ASSEMBLING INSTRUCTIONS:
   8 /------------------------
   9 /
  10 /       .R PAL8
  11 /       *DEV:PASCAL<DEV:PASCAL/K
  12 /
  13 /       .R ABSLDR
  14 /       *DEV:PASCAL/9$
  15 /
  16 /       .SA SYS PASCAL;06000
  17 /
  18 /
  19 /
  20 /       COMPILER/INTERPRETER LIMITS:
  21 /       ----------------------------
  22 /
  23 /       512 IDENTIFIERS
  24 /       63 ARRAYS
  25 /       63 BLOCKS
  26 /       1980 STATEMENTS OF INTERMDIATE CODE
  27 /       16 LEVELS
  28 /       8 CHARACTER VALID IN IDENTIFIERS
  29 /       80 CHAR'S/LINE MAXIMUM FOR COMPILER INPUT (NOT PROTECTED!)
  30 /
  31 /
  32 /
  33 /       DIFFERENCES TO "WIRTH'S" PASCAL-S:
  34 /       ----------------------------------
  35 /
  36 /       MAXINT = 2^35 - 1 = 34359738367
  37 /       REALS BETWEEN 2.78E-309 AND 8.98E+307, PRECISION ABOUT 5.0E-11
  38 /
  39 /       MAX. ARRAY-BOUNDS
  40 /       MAX. CASE-ITEMS : -2048 < N < 2048
  41 /
  42 /       EOF AND EOLN   W I T H O U T   (INPUT)
  43 /
  44 /       ADDITIONAL PREDEFINED PROCEDURE   HALT
  45 /
  46 /       N O    LINE-SPACING CONTROL CHARACTERS PROVIDED!
  47 /              (SPECIAL PREDEFINED PROCEDURE   ASCII(N) IN PREPARATION)
  48 /
  49 /       OUTPUT LINE LENGTH NOT LIMITED (USERS RESPONSIBILITY!)
  50 /
  51 \f