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<?php //Pi calculation code //From Chao Xu //At http://www.webdevlogs.com function bcpi($precision){ $num = "0";$k = "0"; bcscale(bcadd($precision,3)); $limit = ($precision+3)/14; while($k < $limit){ $num = bcadd($num,bcdiv(bcmul(bcadd('13591409',bcmul('545140134', $k)),bcmul(bcpow(-1, $k), bcfact(6*$k))),bcmul(bcmul(bcpow('640320',3*$k+1),bcsqrt('640320')), bcmul(bcfact(3*$k), bcpow(bcfact($k),3))))); ++$k; } return bcdiv(1,(bcmul(12,($num))),$precision); } function bcfact($n){ return ($n == 0 || $n== 1) ? 1 : bcmul($n,bcfact($n-1)); } echo bcpi(15);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ErfsG
function name:  (null)
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   21     0  E >   INIT_FCALL                                               'bcpi'
          1        SEND_VAL                                                 15
          2        DO_FCALL                                      0  $0      
          3        ECHO                                                     $0
          4      > RETURN                                                   1

Function bcpi:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 80
Branch analysis from position: 80
2 jumps found. (Code = 44) Position 1 = 82, Position 2 = 14
Branch analysis from position: 82
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 14
2 jumps found. (Code = 44) Position 1 = 82, Position 2 = 14
Branch analysis from position: 82
Branch analysis from position: 14
filename:       /in/ErfsG
function name:  bcpi
number of ops:  93
compiled vars:  !0 = $precision, !1 = $num, !2 = $k, !3 = $limit
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   RECV                                             !0      
    7     1        ASSIGN                                                   !1, '0'
          2        ASSIGN                                                   !2, '0'
    8     3        INIT_FCALL_BY_NAME                                       'bcscale'
          4        INIT_FCALL_BY_NAME                                       'bcadd'
          5        SEND_VAR_EX                                              !0
          6        SEND_VAL_EX                                              3
          7        DO_FCALL                                      0  $6      
          8        SEND_VAR_NO_REF_EX                                       $6
          9        DO_FCALL                                      0          
    9    10        ADD                                              ~8      !0, 3
         11        DIV                                              ~9      ~8, 14
         12        ASSIGN                                                   !3, ~9
   10    13      > JMP                                                      ->80
   11    14    >   INIT_FCALL_BY_NAME                                       'bcadd'
         15        SEND_VAR_EX                                              !1
         16        INIT_FCALL_BY_NAME                                       'bcdiv'
         17        INIT_FCALL_BY_NAME                                       'bcmul'
         18        INIT_FCALL_BY_NAME                                       'bcadd'
         19        SEND_VAL_EX                                              '13591409'
         20        INIT_FCALL_BY_NAME                                       'bcmul'
         21        SEND_VAL_EX                                              '545140134'
         22        SEND_VAR_EX                                              !2
         23        DO_FCALL                                      0  $11     
         24        SEND_VAR_NO_REF_EX                                       $11
         25        DO_FCALL                                      0  $12     
         26        SEND_VAR_NO_REF_EX                                       $12
         27        INIT_FCALL_BY_NAME                                       'bcmul'
         28        INIT_FCALL_BY_NAME                                       'bcpow'
         29        SEND_VAL_EX                                              -1
         30        SEND_VAR_EX                                              !2
         31        DO_FCALL                                      0  $13     
         32        SEND_VAR_NO_REF_EX                                       $13
         33        INIT_FCALL_BY_NAME                                       'bcfact'
         34        MUL                                              ~14     !2, 6
         35        SEND_VAL_EX                                              ~14
         36        DO_FCALL                                      0  $15     
         37        SEND_VAR_NO_REF_EX                                       $15
         38        DO_FCALL                                      0  $16     
         39        SEND_VAR_NO_REF_EX                                       $16
         40        DO_FCALL                                      0  $17     
         41        SEND_VAR_NO_REF_EX                                       $17
         42        INIT_FCALL_BY_NAME                                       'bcmul'
         43        INIT_FCALL_BY_NAME                                       'bcmul'
         44        INIT_FCALL_BY_NAME                                       'bcpow'
         45        SEND_VAL_EX                                              '640320'
         46        MUL                                              ~18     !2, 3
         47        ADD                                              ~19     ~18, 1
         48        SEND_VAL_EX                                              ~19
         49        DO_FCALL                                      0  $20     
         50        SEND_VAR_NO_REF_EX                                       $20
         51        INIT_FCALL_BY_NAME                                       'bcsqrt'
         52        SEND_VAL_EX                                              '640320'
         53        DO_FCALL                                      0  $21     
         54        SEND_VAR_NO_REF_EX                                       $21
         55        DO_FCALL                                      0  $22     
         56        SEND_VAR_NO_REF_EX                                       $22
         57        INIT_FCALL_BY_NAME                                       'bcmul'
         58        INIT_FCALL_BY_NAME                                       'bcfact'
         59        MUL                                              ~23     !2, 3
         60        SEND_VAL_EX                                              ~23
         61        DO_FCALL                                      0  $24     
         62        SEND_VAR_NO_REF_EX                                       $24
         63        INIT_FCALL_BY_NAME                                       'bcpow'
         64        INIT_FCALL_BY_NAME                                       'bcfact'
         65        SEND_VAR_EX                                              !2
         66        DO_FCALL                                      0  $25     
         67        SEND_VAR_NO_REF_EX                                       $25
         68        SEND_VAL_EX                                              3
         69        DO_FCALL                                      0  $26     
         70        SEND_VAR_NO_REF_EX                                       $26
         71        DO_FCALL                                      0  $27     
         72        SEND_VAR_NO_REF_EX                                       $27
         73        DO_FCALL                                      0  $28     
         74        SEND_VAR_NO_REF_EX                                       $28
         75        DO_FCALL                                      0  $29     
         76        SEND_VAR_NO_REF_EX                                       $29
         77        DO_FCALL                                      0  $30     
         78        ASSIGN                                                   !1, $30
   12    79        PRE_INC                                                  !2
   10    80    >   IS_SMALLER                                               !2, !3
         81      > JMPNZ                                                    ~33, ->14
   14    82    >   INIT_FCALL_BY_NAME                                       'bcdiv'
         83        SEND_VAL_EX                                              1
         84        INIT_FCALL_BY_NAME                                       'bcmul'
         85        SEND_VAL_EX                                              12
         86        SEND_VAR_EX                                              !1
         87        DO_FCALL                                      0  $34     
         88        SEND_VAR_NO_REF_EX                                       $34
         89        SEND_VAR_EX                                              !0
         90        DO_FCALL                                      0  $35     
         91      > RETURN                                                   $35
   15    92*     > RETURN                                                   null

End of function bcpi

Function bcfact:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 47) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 8
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 17
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
filename:       /in/ErfsG
function name:  bcfact
number of ops:  19
compiled vars:  !0 = $n
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   17     0  E >   RECV                                             !0      
   18     1        IS_EQUAL                                         ~1      !0, 0
          2      > JMPNZ_EX                                         ~1      ~1, ->5
          3    >   IS_EQUAL                                         ~2      !0, 1
          4        BOOL                                             ~1      ~2
          5    > > JMPZ                                                     ~1, ->8
          6    >   QM_ASSIGN                                        ~3      1
          7      > JMP                                                      ->17
          8    >   INIT_FCALL_BY_NAME                                       'bcmul'
          9        SEND_VAR_EX                                              !0
         10        INIT_FCALL_BY_NAME                                       'bcfact'
         11        SUB                                              ~4      !0, 1
         12        SEND_VAL_EX                                              ~4
         13        DO_FCALL                                      0  $5      
         14        SEND_VAR_NO_REF_EX                                       $5
         15        DO_FCALL                                      0  $6      
         16        QM_ASSIGN                                        ~3      $6
         17    > > RETURN                                                   ~3
   19    18*     > RETURN                                                   null

End of function bcfact

Generated using Vulcan Logic Dumper, using php 8.0.0


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173.44 ms | 1407 KiB | 32 Q