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twiddling bits
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BIN
bufferedio
BIN
bufferedio
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@ -55,7 +55,7 @@ CTS STA ANN2LO ; set ANN2 to LOW (just in case it's floating high)
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STA BUFFERLENGTH ; put the byte in $08
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STA BUFFERLENGTH ; put the byte in $08
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RTS ; returns buffer length in $08 (BUFFERLENGTH)
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RTS ; returns buffer length in $08 (BUFFERLENGTH)
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TWIDDLE LDA #$7C ; |
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TWIDDLE LDA #$21 ; ! (inverse)
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JSR PRINTCHAR ;
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JSR PRINTCHAR ;
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LDA #$2F ; /
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LDA #$2F ; /
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JSR PRINTCHAR ;
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JSR PRINTCHAR ;
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@ -58,7 +58,7 @@
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55 | 1 bufferedio.s 55 | Code | 11 | | 2 | 00/085B : 85 08 | STA {$08} ; put the byte in $08
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55 | 1 bufferedio.s 55 | Code | 11 | | 2 | 00/085B : 85 08 | STA {$08} ; put the byte in $08
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56 | 1 bufferedio.s 56 | Code | 11 | | 1 | 00/085D : 60 | RTS ; returns buffer length in $08 (BUFFERLENGTH)
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56 | 1 bufferedio.s 56 | Code | 11 | | 1 | 00/085D : 60 | RTS ; returns buffer length in $08 (BUFFERLENGTH)
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57 | 1 bufferedio.s 57 | Empty | 11 | | 0 | 00/085E |
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57 | 1 bufferedio.s 57 | Empty | 11 | | 0 | 00/085E |
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58 | 1 bufferedio.s 58 | Code | 11 | | 2 | 00/085E : A9 7C | TWIDDLE LDA #$7C ; |
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58 | 1 bufferedio.s 58 | Code | 11 | | 2 | 00/085E : A9 21 | TWIDDLE LDA #$21 ; ! (inverse)
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59 | 1 bufferedio.s 59 | Code | 11 | | 3 | 00/0860 : 20 6F 08 | JSR PRINTCHAR ;
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59 | 1 bufferedio.s 59 | Code | 11 | | 3 | 00/0860 : 20 6F 08 | JSR PRINTCHAR ;
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60 | 1 bufferedio.s 60 | Code | 11 | | 2 | 00/0863 : A9 2F | LDA #$2F ; /
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60 | 1 bufferedio.s 60 | Code | 11 | | 2 | 00/0863 : A9 2F | LDA #$2F ; /
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61 | 1 bufferedio.s 61 | Code | 11 | | 3 | 00/0865 : 20 6F 08 | JSR PRINTCHAR ;
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61 | 1 bufferedio.s 61 | Code | 11 | | 3 | 00/0865 : 20 6F 08 | JSR PRINTCHAR ;
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