mirror of https://github.com/A2osX/A2osX.git
163 lines
2.5 KiB
Plaintext
163 lines
2.5 KiB
Plaintext
NEW
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AUTO 3,1
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.LIST OFF
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*--------------------------------------
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HIS.Init >LDYAI HISTORY.MAX Get a buffer for History
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>SYSCALL StrVNew
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bcs .9
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>STA.G HIS.hBuf
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* >STZ.G HIS.Count
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* >STA.G HIS.Index
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* >STA.G HIS.LRU
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.9 rts
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*--------------------------------------
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HIS.Add >LDA.G HIS.hBuf
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beq .9
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>LDA.G HIS.Count
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cmp #HIS.MAX
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bcc .2
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>LDA.G HIS.LRU
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cmp #HIS.MAX
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bne .1
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lda #0
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.1 inc
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>STA.G HIS.LRU
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bra .7
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.2 inc
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>STA.G HIS.Count
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.7 tax
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>PUSHB.G HIS.hBuf
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>PUSHBI 0
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txa
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>PUSHA
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>PUSHW ZPCLBuf
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>SYSCALL StrVSet
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>STZ.G HIS.Index Reset Index
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.9 rts
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*--------------------------------------
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HIS.Select >LDA.G HIS.Count
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bne .10
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clc
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.99 rts
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.10 jsr CL.Reset
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>STZ.G HIS.Index
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.1 >INC.G HIS.Index
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jsr HIS.GetIndex
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bcs .99
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>PUSHW L.MSG.HIS
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>LDA.G HIS.Index
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dec
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>PUSHA
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>PUSHW ZPCLBuf
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>PUSHBI 3
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>SYSCALL PrintF
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bcs .9
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>LDA.G HIS.Index
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>CMP.G HIS.Count
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bne .1
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>PUSHW L.MSG.HISPROMPT
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>PUSHBI 0
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>SYSCALL PrintF
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>STZ.G HIS.Index
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lda #0
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sta (ZPCLBuf)
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>SYSCALL GetChar
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bcs HIS.Select.RTS
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cmp #'0'
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bcc .7
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cmp #'9'+1
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bcs .7
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and #$f
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inc
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>STA.G HIS.Index
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.7 >PUSHW L.MSG.HISROMPTCLR
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>PUSHBI 0
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>SYSCALL PrintF
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jsr CL.PrintPrompt
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bcc HIS.GetToCL1
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.9
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HIS.Select.RTS rts
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*--------------------------------------
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HIS.GetPrev >LDA.G HIS.Count
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beq HIS.Select.RTS empty history,nothing to do
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>LDA.G HIS.Index
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bne .1
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>LDA.G HIS.Count
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bra HIS.GetToCL
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.1 dec
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bra HIS.GetToCl
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*--------------------------------------
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HIS.GetNext >LDA.G HIS.Count
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beq HIS.Select.RTS empty history,nothing to do
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>EOR.G HIS.Index
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beq HIS.GetToCL
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>LDA.G HIS.Index
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inc
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*--------------------------------------
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HIS.GetToCl >STA.G HIS.Index
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jsr CL.CLR
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HIS.GetToCL1 >LDA.G HIS.Index
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beq .9
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jsr HIS.GetIndex
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bcs .9
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ldy #$ff
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.1 iny
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lda (ZPCLBuf),y
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bne .1
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tya
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sta CL.Ptr
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sta CL.Len
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jmp CL.Print
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.9 rts
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*--------------------------------------
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HIS.GetIndex >PUSHB.G HIS.hBuf
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>PUSHBI 0
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>PUSHB.G HIS.Index
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>PUSHW ZPCLBuf
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>SYSCALL StrVGet
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rts
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*--------------------------------------
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MAN
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SAVE usr/src/bin/forth.s.his
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LOAD usr/src/bin/forth.s
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ASM
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