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https://github.com/nathanriggs/AppleIIAsm-Collection.git
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9f35f32f67
- massive overhaul of architecture - first round of optimizations - first draft of the technical manual for the entire library - reorganization of directory structure
50 lines
1.3 KiB
Plaintext
50 lines
1.3 KiB
Plaintext
*
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*``````````````````````````````*
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* SINPUT (NATHAN RIGGS) *
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* *
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* INPUT *
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* *
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* NONE *
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* *
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* OUTPUT: *
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* *
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* .X = LENGTH OF STRING *
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* RETURN = STRING TYPED *
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* RETLEN = LENGTH OF STRING *
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* *
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* DESTROY: AXYNVBDIZCMS *
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* ^^^^^ ^^ *
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* *
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* CYCLES: 60+ *
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* SIZE: 45 BYTES *
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*,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,*
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*
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]STRLEN EQU VARTAB ; 1 BYTE
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*
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SINPUT
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*
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LDX #$00
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JSR GETLN
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STX ]STRLEN ; STORE STR LENGTH
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CPX #0 ; IF LEN = 0, EXIT
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BNE :INP_CLR
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STX RETLEN
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STX RETURN
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JMP :EXIT
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:INP_CLR
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LDA ]STRLEN ; LENGTH OF STRING
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STA RETURN ; STRING LENGTH FIRST BYTE
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STA RETLEN ; PUT LENGTH + 1 HERE
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INC RETLEN
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LDX #255
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LDY #0
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:LOOP
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INX
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INY
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LDA KEYBUFF,X ; PUT STR INTO NEW LOC
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STA RETURN,Y
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CPX ]STRLEN ; IF Y < STR LENGTH
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BNE :LOOP ; LOOP; ELSE, EXIT
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:EXIT
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RTS
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