mirror of
https://github.com/A2osX/A2osX.git
synced 2024-06-01 07:41:51 +00:00
149 lines
2.4 KiB
Plaintext
149 lines
2.4 KiB
Plaintext
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NEW
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AUTO 3,1
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.LIST OFF
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*--------------------------------------
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* In: A = current CHAR
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* Out: CC, longint on stack
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*--------------------------------------
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EXP.Eval ldx #$FF
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stx EXP.AOPS1
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stx EXP.AOPS2
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.10 jsr CORE.IsLetter
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bcc .1 FN or VAR
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jsr CORE.IsDigit10
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bcs .9
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jsr EXP.Int32
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bcs .99
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bra .5
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*--------------------------------------
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.1 >LDYA L.ACOS.FN
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jsr CORE.Lookup
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bcs .3
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jsr EXP.FNjmpX
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bcs .99
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bra .5
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*--------------------------------------
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.3 jsr EXP.VARLookup
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bcs .99
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>LDYA EXP.ADDR
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jsr CODE.PUSHfYA
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*--------------------------------------
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.5 jsr CORE.GetCharNB
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bcs .7
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jsr CORE.IsEndExp
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bcs .7
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jsr CORE.IsAOPSChar + - * /
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bcc .6
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>LDYA L.ACOS.AOPS MOD
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jsr CORE.Lookup
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bcs .9
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txa
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* clc
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adc #ACOS.AOPSChars.Cnt*2
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tax
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lda EXP.AOPS1
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bmi .6
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cpx EXP.AOPS1
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.6 stx EXP.AOPS1
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jsr CORE.GetNextCharNB
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bcs .9
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jmp .10
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.7 ldx EXP.AOPS1
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bmi .8
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jsr EXP.AOPSjmpX
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.8 clc
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rts
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.9 lda #E.CSYN
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.99 rts
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*--------------------------------------
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EXP.FNjmpX jmp (J.ACOS.FN,x)
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EXP.AOPSjmpX jmp (J.ACOS.AOPS,x)
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*--------------------------------------
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EXP.Int32 >PUSHW ZPInputBufPtr
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>PUSHWI ZPInputBufPtr
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>PUSHBI 10
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>SYSCALL StrToL
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bcs .9
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jsr CODE.PUSHINT32
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>POP 4
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clc
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.9 rts
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*--------------------------------------
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EXP.VARLookup >LDA.G hVars
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>PUSHA
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>PUSHA for SListGetData
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>PUSHW ZPInputBufPtr
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>SYSCALL SListLookup
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bcs .9
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>PUSHYA ZPSID
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txa
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* clc
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adc ZPInputBufPtr
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sta ZPInputBufPtr
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bcc .1
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inc ZPInputBufPtr+1
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.1 >PUSHWI EXP.ADDR
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>PUSHWI 2 2 bytes
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>PUSHWZ From Start
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>SYSCALL SListGetData
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rts
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.9 >PULLA
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rts
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*--------------------------------------
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EXP.ADD ldx #FPU.ADD32
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jmp CODE.FPUCALL
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EXP.SUB ldx #FPU.SUB32
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jmp CODE.FPUCALL
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EXP.MUL ldx #FPU.IMUL32
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jmp CODE.FPUCALL
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EXP.DIV ldx #FPU.IDIV32
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jmp CODE.FPUCALL
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EXP.MOD ldx #FPU.IMOD32
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jmp CODE.FPUCALL
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*--------------------------------------
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*--------------------------------------
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MAN
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SAVE usr/src/bin/acos.s.exp
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LOAD usr/src/bin/acos.s
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ASM
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