view interps/linguine/mult.lng @ 7408:4315d5bac235

<b_jonas> slashlearn Ravnica/Ravnica: City of Guilds is a city of guilds. \xe2\x80\x9cCity of Guilds\xe2\x80\x9d is part of its name. The Wizards of the Coast Marketing Department: We Sell Anything thought players might not notice it was a City of Guilds unless they put the tagline into the name.
author HackBot
date Sun, 17 Apr 2016 19:29:52 +0000
parents 859f9b4339e6
children
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'General multiplication and integer division routines
'Programmed by Jeffry Johnston, 2005

'test -12 / 3 = -4
1[-1=2,-2=-12,-3=3]200
2[-2#]0

'Multiply: -2 *= *-3
'-1=return jump, -4=temp, -5=temp
100[-4=*-3,-5=*-2,-2=0,-4<0:101]102
101[-4~0:*-1,-2-*-5,-4+1]101 '-3 is negative
102[-4~0:*-1,-2+*-5,-4-1]102 '-3 is positive 

'Divide: -2 /= *-3
'-1=return jump, -4=temp, -5=temp
200[-4=*-2,-2=0,-5=0,-4<0:201,-3<0:204]202
201[-5-*-4,-4=*-5,-3<0:205]203
202[-4<*-3:*-1,-4-*-3,-2+1]202
203[-4<*-3:*-1,-4-*-3,-2-1]203
204[-5-*-3,-3=*-5]203
205[-5=0,-5-*-3,-3=*-5]202