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8-Bit Software

The BBC and Master Computer Public Domain Library

B3DD LISTO

Submitted by Steve Fewell

Description:

This routine is called when the LIST token is executed. This routine checks whether an 'O' character follows the LIST
token, and if not, then the LIST routine is executed instead, otherwise LISTO is executed as described below.


Disassembly for the LISTO routine

B3DD   200 C8 INY
B3DE   177 011 B1 0B LDA (&0B),Y
B3E0 O 201 079 C9 4F CMP#&4F
B3E2   208 182 D0 B6 BNE -74 --> &B39A
B3E4   230 010 E6 0A INC &0A
B3E6 o 032 111 146 20 6F 92 JSR &926F
B3E9   032 166 155 20 A6 9B JSR &9BA6
B3EC * 165 042 A5 2A LDA &2A
B3EE   133 031 85 1F STA &1F
B3F0 L 076 134 143 4C 86 8F JMP &8F86

 


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