83Plus:BCALLs:423D

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Synopsis

Official Name: GETCONOP1

BCALL Address: 423D

Loads one of seven different commonly used constants to OP1.

Inputs

  • a = constant type
  • where constant type is
  • a=0 180/PI
  • a=1 PI/2
  • a=2 PI/4
  • a=3 Log(e)
  • a=4 PI
  • a=5 PI/180
  • a=6 ln(10)

Outputs

  • OP1 = constant

Registers Destroyed

  •  ??

Example

 ld     a,4     ;PI
 B_CALL GETCONOP1

After the BCALL: 

 OP1: 00 80 31 41 59 26 53 58 98
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