### FILE="Main.annotation"
## Copyright: Public domain.
## Filename: SINGLE_PRECISION_SUBROUTINES.agc
## Purpose: Part of the source code for Colossus build 237.
## This is for the Command Module's (CM) Apollo Guidance
## Computer (AGC), for Apollo 8.
## Assembler: yaYUL
## Contact: Onno Hommes <ohommes@alumni.cmu.edu>
## Website: www.ibiblio.org/apollo/index.html
## Page Scans: www.ibiblio.org/apollo/ScansForConversion/Colossus237/
## Mod history: 2010-06-03 OH Adapted from corresponding Colossus 249 file.
## 2010-12-04 JL Remove Colossus 249 header comments. Change to double-has page numbers.
## 2011-02-08 JL Minor fixes.
## 2017-01-01 RSB Proofed comment text using octopus/ProoferComments,
## and fixed errors found.
## Page 1174
BLOCK 02
# SINGLE PRECISION SINE AND COSINE
COUNT 02/INTER
SPCOS AD HALF # ARGUMENTS SCALED AT PI
SPSIN TS TEMK
TCF SPT
CS TEMK
SPT DOUBLE
TS TEMK
TCF POLLEY
XCH TEMK
INDEX TEMK
AD LIMITS
COM
AD TEMK
TS TEMK
TCF POLLEY
TCF ARG90
POLLEY EXTEND
MP TEMK
TS SQ
EXTEND
MP C5/2
AD C3/2
EXTEND
MP SQ
AD C1/2
EXTEND
MP TEMK
DDOUBL
TS TEMK
TC Q
ARG90 INDEX A
CS LIMITS
TC Q # RESULT SCALED AT 1
# SPROOT WAS DELETED IN REV 51 OF MASTER. ASS. CONT. HAS CARDS.