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twiddling bits

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This commit is contained in:
Charles Mangin 2017-04-10 13:09:57 -04:00
parent 7c5943956b
commit 05e290b2a5
3 changed files with 2 additions and 2 deletions
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BIN
bufferedio
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2
bufferedio.s
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@ -55,7 +55,7 @@ CTS STA ANN2LO ; set ANN2 to LOW (just in case it's floating high)
STA BUFFERLENGTH ; put the byte in $08 STA BUFFERLENGTH ; put the byte in $08
RTS ; returns buffer length in $08 (BUFFERLENGTH) RTS ; returns buffer length in $08 (BUFFERLENGTH)
TWIDDLE LDA #$7C ; | TWIDDLE LDA #$21 ; ! (inverse)
JSR PRINTCHAR ; JSR PRINTCHAR ;
LDA #$2F ; / LDA #$2F ; /
JSR PRINTCHAR ; JSR PRINTCHAR ;

2
bufferedio_Output.txt
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@ -58,7 +58,7 @@
55 | 1 bufferedio.s 55 | Code | 11 | | 2 | 00/085B : 85 08 | STA {$08} ; put the byte in $08 55 | 1 bufferedio.s 55 | Code | 11 | | 2 | 00/085B : 85 08 | STA {$08} ; put the byte in $08
56 | 1 bufferedio.s 56 | Code | 11 | | 1 | 00/085D : 60 | RTS ; returns buffer length in $08 (BUFFERLENGTH) 56 | 1 bufferedio.s 56 | Code | 11 | | 1 | 00/085D : 60 | RTS ; returns buffer length in $08 (BUFFERLENGTH)
57 | 1 bufferedio.s 57 | Empty | 11 | | 0 | 00/085E | 57 | 1 bufferedio.s 57 | Empty | 11 | | 0 | 00/085E |
58 | 1 bufferedio.s 58 | Code | 11 | | 2 | 00/085E : A9 7C | TWIDDLE LDA #$7C ; | 58 | 1 bufferedio.s 58 | Code | 11 | | 2 | 00/085E : A9 21 | TWIDDLE LDA #$21 ; ! (inverse)
59 | 1 bufferedio.s 59 | Code | 11 | | 3 | 00/0860 : 20 6F 08 | JSR PRINTCHAR ; 59 | 1 bufferedio.s 59 | Code | 11 | | 3 | 00/0860 : 20 6F 08 | JSR PRINTCHAR ;
60 | 1 bufferedio.s 60 | Code | 11 | | 2 | 00/0863 : A9 2F | LDA #$2F ; / 60 | 1 bufferedio.s 60 | Code | 11 | | 2 | 00/0863 : A9 2F | LDA #$2F ; /
61 | 1 bufferedio.s 61 | Code | 11 | | 3 | 00/0865 : 20 6F 08 | JSR PRINTCHAR ; 61 | 1 bufferedio.s 61 | Code | 11 | | 3 | 00/0865 : 20 6F 08 | JSR PRINTCHAR ;