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Routines |
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The address of this routine is found in the parameter table.
The line number and the statement number that are to be made the object of a 'return' are fetched from the GO SUB stack.
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| RETURN | 07971 | POP BC | Fetch the address - STMT_RET. | |
| 07972 | POP HL | Fetch the 'error address'. | ||
| 07973 | POP DE | Fetch the last entry on the GO SUB stack. | ||
| 07974 | LD A,D | The entry is tested to see if it is the GO SUB stack end marker. | ||
| 07975 | CP 62 | |||
| 07977 | JR Z,REPORT_7 | Jump if it is. | ||
| 07979 | DEC SP | The full entry uses three locations only. | ||
| 07980 | EX (SP),HL | Exchange the statement number with the 'error address'. | ||
| 07981 | EX DE,HL | Move the statement number. | ||
| 07982 | LD (23613),SP | Reset the error pointer (ERR-SP). | ||
| 07986 | PUSH BC | Replace the address STMT_RET. | ||
| 07987 | JP GO_TO_2 | Jump back to change NEWPPC and NSPPC. | ||
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Report 7 - RETURN without GOSUB.
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| REPORT_7 | 07990 | PUSH DE | Replace the end marker and the 'error address'. | |
| 07991 | PUSH HL | |||
| 07992 | RST 8 | Call the error handling routine. | ||
| 07993 | DEFB 6 | |||
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