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42 lines
601 B
Plaintext
42 lines
601 B
Plaintext
YSAV1 = $35
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CR = $8D
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STKBAS = $0100
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BUF = $0200
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READC = $C080
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LATCHC = $C081
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CLOCK PHP
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NOP
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PLP
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CLV
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CLI
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SEC
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BVS *+2+$18
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BVC READCL
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NOP
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WRITECL ORA ($6F,X)
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RTS
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READCL LDA #$60
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STA YSAV1
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JSR YSAV1
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TSX
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LDA STKBAS,X
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ASL
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ASL
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ASL
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ASL
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TAX
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LDY #0
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LOOP LDA LATCHC,X
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REREAD LDA READC,X
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BPL REREAD
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STA BUF,Y
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INY
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CMP #CR
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BNE LOOP
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RTS
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