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13015: THE TABLE OF ADDRESSES
Used by the routine at CALCULATE.
This table is a look-up table of the addresses of the sixty-six operational subroutines of the calculator. The offsets used to index into the table are derived either from the operation codes used in the routine at SCANNING (see S_LOOP, etc.) or from the literals that follow a 'RST 40' instruction.
CALCADDR 13015 DEFW jump_true 0
13017 DEFW exchange 1
13019 DEFW delete 2
13021 DEFW subtract 3
13023 DEFW multiply 4
13025 DEFW division 5
13027 DEFW to_power 6
13029 DEFW no_or_no 7
13031 DEFW no_and_no 8
13033 DEFW compare 9: <= (numbers)
13035 DEFW compare 10: >= (numbers)
13037 DEFW compare 11: <> (numbers)
13039 DEFW compare 12: > (numbers)
13041 DEFW compare 13: < (numbers)
13043 DEFW compare 14: = (numbers)
13045 DEFW addition 15
13047 DEFW str_no 16
13049 DEFW compare 17: <= (strings)
13051 DEFW compare 18: >= (strings)
13053 DEFW compare 19: <> (strings)
13055 DEFW compare 20: > (strings)
13057 DEFW compare 21: < (strings)
13059 DEFW compare 22: = (strings)
13061 DEFW strs_add 23
13063 DEFW val 24 (VAL$)
13065 DEFW usr 25
13067 DEFW read_in 26
13069 DEFW negate 27
13071 DEFW code 28
13073 DEFW val 29 (VAL)
13075 DEFW len 30
13077 DEFW sin 31
13079 DEFW cos 32
13081 DEFW tan 33
13083 DEFW asn 34
13085 DEFW acs 35
13087 DEFW atn 36
13089 DEFW ln 37
13091 DEFW exp 38
13093 DEFW int 39
13095 DEFW sqr 40
13097 DEFW sgn 41
13099 DEFW abs 42
13101 DEFW peek 43
13103 DEFW f_in 44
13105 DEFW usr_no 45
13107 DEFW str 46
13109 DEFW chrs 47
13111 DEFW f_not 48
13113 DEFW duplicate 49
13115 DEFW n_mod_m 50
13117 DEFW jump 51
13119 DEFW stk_data 52
13121 DEFW dec_jr_nz 53
13123 DEFW less_0 54
13125 DEFW greater_0 55
13127 DEFW end_calc 56
13129 DEFW get_argt 57
13131 DEFW truncate 58
13133 DEFW fp_calc_2 59
13135 DEFW e_to_fp 60
13137 DEFW re_stack 61
13139 DEFW series 62
13141 DEFW stk_con 63
13143 DEFW st_mem 64
13145 DEFW get_mem 65
Note: the last four subroutines are multi-purpose subroutines and are entered with a parameter that is a copy of the right hand five bits of the original literal. The full set follows:
  • Offset 62: series-06, series-08 and series-0C; literals 134, 136 and 140.
  • Offset 63: stk-zero, stk-one, stk-half, stk-pi/2 and stk-ten; literals 160 to 164.
  • Offset 64: st-mem-0, st-mem-1, st-mem-2, st-mem-3, st-mem-4 and st-mem-5; literals 192 to 197.
  • Offset 65: get-mem-0, get-mem-1, get-mem-2, get-mem-3, get-mem-4 and get-mem-5; literals 224 to 229.
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