|
Routines |
| Prev: 1F1A | Up: Map | Next: 1F3A |
|
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.
|
||||
| RETURN | 1F23 | POP BC | Fetch the address - STMT_RET. | |
| 1F24 | POP HL | Fetch the 'error address'. | ||
| 1F25 | POP DE | Fetch the last entry on the GO SUB stack. | ||
| 1F26 | LD A,D | The entry is tested to see if it is the GO SUB stack end marker. | ||
| 1F27 | CP $3E | |||
| 1F29 | JR Z,REPORT_7 | Jump if it is. | ||
| 1F2B | DEC SP | The full entry uses three locations only. | ||
| 1F2C | EX (SP),HL | Exchange the statement number with the 'error address'. | ||
| 1F2D | EX DE,HL | Move the statement number. | ||
| 1F2E | LD ($5C3D),SP | Reset the error pointer (ERR-SP). | ||
| 1F32 | PUSH BC | Replace the address STMT_RET. | ||
| 1F33 | JP GO_TO_2 | Jump back to change NEWPPC and NSPPC. | ||
|
Report 7 - RETURN without GOSUB.
|
||||
| REPORT_7 | 1F36 | PUSH DE | Replace the end marker and the 'error address'. | |
| 1F37 | PUSH HL | |||
| 1F38 | RST $08 | Call the error handling routine. | ||
| 1F39 | DEFB $06 | |||
| Prev: 1F1A | Up: Map | Next: 1F3A |