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Routines |
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The address of this routine is found in the parameter table.
This command allows the user to close streams. However for streams 0 to 3 the 'initial' stream data is restored and these streams cannot therefore be closed.
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| CLOSE | 05861 | CALL STR_DATA | The existing data for the stream is fetched. | |
| 05864 | CALL CLOSE_2 | Check the code in that stream's channel. | ||
| 05867 | LD BC,0 | Prepare to make the stream's data zero. | ||
| 05870 | LD DE,41954 | Prepare to identify the use of streams 0 to 3. | ||
| 05873 | EX DE,HL | |||
| 05874 | ADD HL,DE | The carry flag will be set with streams 4 to 15. | ||
| 05875 | JR C,CLOSE_1 | Jump forward with these streams; otherwise find the correct entry in the initial stream data table. | ||
| 05877 | LD BC,5588 | |||
| 05880 | ADD HL,BC | |||
| 05881 | LD C,(HL) | Fetch the initial data for streams 0 to 3. | ||
| 05882 | INC HL | |||
| 05883 | LD B,(HL) | |||
| CLOSE_1 | 05884 | EX DE,HL | Now enter the data: either zero and zero, or the initial values. | |
| 05885 | LD (HL),C | |||
| 05886 | INC HL | |||
| 05887 | LD (HL),B | |||
| 05888 | RET | |||
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