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61 lines
2.5 KiB
Plaintext
61 lines
2.5 KiB
Plaintext
;VIC20 BASIC Floating Point Functions
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;pival - PI Expressed as a Five-Byte Floating Point Number
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PIVAL EQU $CEA8
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maxint EQU $D1A5 ;The Constant -32768 in Five-Byte Floating Point Format
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ayint EQU $D1AA ;Convert Floating Point to Signed Integer in A and Y
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intidx EQU $D1B2 ;Convert Floating Point Subscript to a Positive Integer
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fpint EQU $D1BF ;Convert Floating Point Number to Signed Integer
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makfp EQU $D391 ;Convert 16-Bit Signed Integer to Floating Pointers
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fpadr EQU $D7F7 ;Convert Floating Point to Unsigned Two-Byte Integer
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fpsubm EQU $D850 ;Subtract FAC1 from a Number in Memory
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fpsub EQU $D853 ;Subtract FAC2 from FAC1
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fpaddm EQU $D867 ;Add FAC1 to a Number in Memory
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fpaddh EQU $D86A ;Add FAC1 to FAC2
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normlz EQU $D8FE ;Normalize Floating Point Accumulator #1
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comfac EQU $D947 ;Replace FAC1 with Its 2's Complement
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denorm EQU $D983 ;Denormalize Exponents of FAC1 and FAC2
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fpcone EQU $D9BC ;Floating Point Constant with a Value of 1
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dolog EQU $D9EA ;Perform LOG
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fpmult EQU $DA28 ;Multiply FAC1 with FAC2
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fpmltb EQU $DA59 ;Multiply Byte Subroutine
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lodarg EQU $DA8C ;Move Floating Point Number from Memory into FAC2
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multen EQU $DAE2 ;Multiply FAC1 by 10
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fpcten EQU $BAF9 ;The Constant 10 in Five-Byte Floating Format
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divten EQU $DAFE ;Divide FAC1 by 10
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fpdivm EQU $DB0F ;Divide a Number in Memory by FAC1
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fpdivm EQU $DB12 ;Divide FAC2 by FAC1
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lodfac EQU $DBA2 ;Move Floating Point Number from Memory to FAC1
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strfac EQU $DBD4 ;Move Floating Point Number from FAC1 to Memory
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argfac EQU $DBFC ;Move Floating Point Number from FAC2 to FAC1
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rndmov EQU $DC0C ;Round and Move Floating Point Number from FAC1 to FAC2
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facarg EQU $DC0F ;Move Floating Point Number from FAC1 to FAC2
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round EQU $DC1B ;Round FAC1 by Adjusting Rounding Byte
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sgnfac EQU $DC2B ;Put Sign of FAC1 into A Register
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dosgn EQU $DC39 ;Perform SGN
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bytfp EQU $DC3C ;Convert Signed Byte in A Register to Floating Point
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doabs EQU $DC58 ;Perform ABS
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cmpfac EQU $DC5B ;Compare FAC1 to Memory
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fpint EQU $DC9B ;Convert FAC1 to 32-bit Signed Integer in $62-$65
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doint EQU $DCCC ;Perform INT
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ascfp EQU $DCF3 ;Convert ASCII String to Floating Point Number
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addbyt EQU $DD7E ;Add Signed Byte in A Register to FAC1
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fpasc EQU $DDDD ;Convert Contents of FAC1 to ASCII String
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dosqr EQU $DF71 ;Perform SQR
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expont EQU $DF7B ;Perform ^
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negfac EQU $DFB4 ;Perform - (Unary Minus)
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doexp EQU $DFED ;Perform EXP
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dorrnd EQU $E094 ;Perform RND
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docos EQU $E261 ;Perform COS
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dosin EQU $E268 ;Perform SIN
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dotan EQU $E2B1 ;Perform TAN
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