83Plus:BCALLs:423D

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

• All

Example

 ld     a,4     ;PI
 B_CALL GETCONOP1  

After the BCALL:

 OP1: 00 80 31 41 59 26 53 58 98