70 lines
1.7 KiB
Plaintext
70 lines
1.7 KiB
Plaintext
# Copyright: Public domain.
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# Filename: SINGLE_PRECISION_SUBROUTINES.agc
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# Purpose: Part of the source code for Luminary 1A build 099.
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# It is part of the source code for the Lunar Module's (LM)
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# Apollo Guidance Computer (AGC), for Apollo 11.
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# Assembler: yaYUL
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# Contact: Ron Burkey <info@sandroid.org>.
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# Website: www.ibiblio.org/apollo.
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# Pages: 1102
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# Mod history: 2009-05-25 RSB Adapted from the corresponding
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# Luminary131 file, using page
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# images from Luminary 1A.
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# 2010-12-31 JL Fixed page number comment.
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#
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# This source code has been transcribed or otherwise adapted from
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# digitized images of a hardcopy from the MIT Museum. The digitization
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# was performed by Paul Fjeld, and arranged for by Deborah Douglas of
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# the Museum. Many thanks to both. The images (with suitable reduction
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# in storage size and consequent reduction in image quality as well) are
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# available online at www.ibiblio.org/apollo. If for some reason you
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# find that the images are illegible, contact me at info@sandroid.org
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# about getting access to the (much) higher-quality images which Paul
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# actually created.
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#
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# Notations on the hardcopy document read, in part:
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#
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# Assemble revision 001 of AGC program LMY99 by NASA 2021112-061
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# 16:27 JULY 14, 1969
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# Page 1102
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BLOCK 02
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# SINGLE PRECISION SINE AND COSINE
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COUNT* $$/INTER
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SPCOS AD HALF # ARGUMENTS SCALED AT PI
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SPSIN TS TEMK
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TCF SPT
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CS TEMK
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SPT DOUBLE
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TS TEMK
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TCF POLLEY
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XCH TEMK
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INDEX TEMK
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AD LIMITS
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COM
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AD TEMK
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TS TEMK
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TCF POLLEY
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TCF ARG90
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POLLEY EXTEND
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MP TEMK
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TS SQ
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EXTEND
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MP C5/2
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AD C3/2
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EXTEND
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MP SQ
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AD C1/2
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EXTEND
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MP TEMK
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DDOUBL
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TS TEMK
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TC Q
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ARG90 INDEX A
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CS LIMITS
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TC Q # RESULT SCALED AT 1
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