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80 lines
2.5 KiB
Plaintext
80 lines
2.5 KiB
Plaintext
PR#3
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PREFIX /A2OSX.SRC
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NEW
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INC 1
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AUTO 6
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.LIST OFF
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*--------------------------------------
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* AppleSoft ZP
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* http://www.txbobsc.com/scsc/scdocumentor/index.html#toc
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*--------------------------------------
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SIGNFLG .EQ $16 FLAGS SIGN IN TAN
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INDEX .EQ $5E Ptr Used by Math routines
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RESULT .EQ $62 -> $66, RESULT OF LAST * OR /
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FAC .EQ $9D -> $A1 (5 bytes)
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FAC.SIGN .EQ $A2
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ARG .EQ $A5 -> $A9 (5 bytes)
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ARG.SIGN .EQ $AA
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SGNCPR .EQ $AB FLAGS OPP SIGN IN FP ROUT
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CHRGET .EQ $B1 -> $C8
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CHRGOT .EQ $B7
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TXTPTR .EQ $B8
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*--------------------------------------
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BASICLD .EQ $E000 ENTER BASIC COLD
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BASICWM .EQ $E003 RE-ENTER BASIC WARM
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HGR2 .EQ $F3D8 APPLESOFT CLEAR TO HIRES 2
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HGR .EQ $F3E2 APPLESOFT CLEAR TO HIRES 1
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BKGND .EQ $F3F4 APPLESOFT HIRES BACKGROUND CLEAR
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HCOLOR .EQ $F6F0 APPLESOFT HIRES COLOR SELECT
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HPOSN .EQ $F411 APPLESOFT HIRES POSITION
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HPLOT .EQ $F457 APPLESOFT HIRES PLOT
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*--------------------------------------
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LOAD.ARG.FROM.YA .EQ $E9E3
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*--------------------------------------
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*--------------------------------------
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* FAC = (Y,A) - FAC
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*--------------------------------------
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FSUB .EQ $E7A7
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*--------------------------------------
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* FAC = (Y,A) + FAC
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*--------------------------------------
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FADD .EQ $E7BE
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*--------------------------------------
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LOG .EQ $E941
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*--------------------------------------
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* FAC = (Y,A) * FAC
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*--------------------------------------
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FMULT .EQ $E97F
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*--------------------------------------
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* FAC = (Y,A) / FAC
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*--------------------------------------
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FDIV .EQ $EA66
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*--------------------------------------
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* CONVERT STRING TO FP VALUE IN FAC
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* STRING POINTED TO BY TXTPTR
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* FIRST CHAR ALREADY SCANNED BY CHRGET
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* (A) = FIRST CHAR, C=0 IF DIGIT.
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*--------------------------------------
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FIN .EQ $EC4A
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*--------------------------------------
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SQR .EQ $EE8D
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*--------------------------------------
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* FAC = E ^ FAC
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*--------------------------------------
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EXP .EQ $EF09
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*--------------------------------------
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RND .EQ $EFAE
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*--------------------------------------
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COS .EQ $EFEA
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*--------------------------------------
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SIN .EQ $EFF1
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*--------------------------------------
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TAN .EQ $F03A
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*--------------------------------------
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ATN .EQ $F09E
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*--------------------------------------
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*--------------------------------------
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MAN
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SAVE /A2OSX.DEV/INC/APPLESOFT.I
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