mirror of
https://github.com/A2osX/A2osX.git
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120 lines
2.4 KiB
Plaintext
120 lines
2.4 KiB
Plaintext
NEW
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PREFIX /A2OSX.BUILD
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AUTO 4,1
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*/--------------------------------------
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* # FAdd,FSub,FMult,FDiv,FPwr
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* Return X+Y, X-Y, X*Y, X/Y, X^Y
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* ## In:
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* PUSHW = X (*Float)
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* PUSHW = Y (*Float)
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* Y,A = Dest (*Float)
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*\--------------------------------------
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K.FAdd ldx #ROM.FADD
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.HS 2C BIT ABS
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K.FSub ldx #ROM.FSUB
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.HS 2C BIT ABS
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K.FMult ldx #ROM.FMULT
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.HS 2C BIT ABS
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K.FDiv ldx #ROM.FDIV
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.HS 2C BIT ABS
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K.FPwr ldx #ROM.PWR
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>STYA FORPNT
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phx
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jsr MATH.PullFAC
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jsr MATH.PullARG
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bra MATH.Go
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*/--------------------------------------
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* # Log,Sqr,Exp,Cos,Sin,Tan,ATan
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* Return Log(x), Sqr(x), E^X, Cos(x), Sin(X), Tan(x), ATan(x)
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* ## In:
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* PUSHW = X (*Float)
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* Y,A = Dest (*Float)
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*\--------------------------------------
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K.Log ldx #ROM.LOG
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.HS 2C BIT ABS
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K.Sqr ldx #ROM.SQR
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.HS 2C BIT ABS
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K.Exp ldx #ROM.EXP
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.HS 2C BIT ABS
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K.Cos ldx #ROM.COS
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.HS 2C BIT ABS
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K.Sin ldx #ROM.SIN
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.HS 2C BIT ABS
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K.Tan ldx #ROM.TAN
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.HS 2C BIT ABS
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K.ATan ldx #ROM.ATAN
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>STYA FORPNT
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phx
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jsr MATH.PullFAC
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bra MATH.Go
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*/--------------------------------------
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* # Float
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* Return return 'floated' long
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* ## In:
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* PUSHW = X (*long)
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* Y,A = Dest (*float)
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*\--------------------------------------
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K.Float >STYA FORPNT
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>PULLW INDEX
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ldx #1
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ldy #3
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.1 lda (INDEX),y
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sta FAC,x
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inx
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dey
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bpl .1
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stz FAC.SIGN
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lda #$A0
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sta FAC Exp=32
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ldx #ROM.LTOF
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phx
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MATH.Go plx
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lda SIGNFLG pPs !!!!
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pha
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jsr A2osX.ROMCALL
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>ROMCALL GETFAC
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pla
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sta SIGNFLG
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clc
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rts
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*/--------------------------------------
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* # LRIntF
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* Return Float rounded into a long
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* ## In:
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* PUSHW = X (*Float)
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* Y,A = Dest (*long)
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*\--------------------------------------
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K.LRIntF >STYA FORPNT
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jsr MATH.PullFAC
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ldx #ROM.QINT
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jsr A2osX.ROMCALL
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ldx #1
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ldy #3
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.1 lda FAC,x
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sta (FORPNT),y
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inx
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dey
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bpl .1
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clc
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rts
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*--------------------------------------
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MATH.PullFAC >PULLW INDEX
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>ROMCALL SETFAC
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rts
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*--------------------------------------
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MATH.PullARG >PULLW INDEX
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>ROMCALL SETARG
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rts
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*--------------------------------------
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MAN
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SAVE /A2OSX.SRC/SYS/KERNEL.S.MATH
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LOAD /A2OSX.SRC/SYS/KERNEL.S
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ASM
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