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Merge pull request #61 from Russell-S-Harper/development 

Revising comments
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Russell-S-Harper 2021-02-26 07:16:56 -05:00 committed by GitHub
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1 changed files with 14 additions and 6 deletions
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common/common.h
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@ -6,15 +6,23 @@
; to be able to recognize an overflow/underflow situation, rescale the arguments, and repeat the
; calculation.
; Largest value: $3fffffff or +1048575.999(5)
; Plus one: $00000400
; Zero: $00000000
; Minus one: $fffffc00
; Smallest value: $c0000000 or -1048576.000(0)
; Largest value: +1048575.999(5) internally $3fffffff
; Smallest value: -1048576.000(0) internally $c0000000
; Plus one: +1 internally $00000400
; Zero: 0 internally $00000000
; Minus one: -1 internally $fffffc00
;
; Literals can be in bases 10, 16, 8, or 2, with $, &, and % as prefixes for bases 16, 8, and 2
; respectively. Some examples, all representing the same value:
;
; DEC: 1000.25
; HEX: $3E8.40
; OCT: &1750.20
; BIN: %1111101000.01
; Instructions
; SET r aabbcc.dd 1r dd cc bb aa Rr <- aabbccdd - set register
; SET r aabbccdd 1r dd cc bb aa Rr <- aabbccdd - set register
; LDD r xxyy 2r yy xx Rr <- (xxyy) - load register directly from address
; SVD r xxyy 3r yy xx (xxyy) <- Rr - save register directly to address
; PSH r 4r RS <- Rr - push onto stack