Spectrum ROM | Routines |
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Used by the routine at STMT_RET.
There has been a jump in the program and the starting address of the new line has to be found.
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LINE_NEW | 07070 | CALL LINE_ADDR | The starting address of the line, or the 'first line after' is found. | ||||
07073 | LD A,(23620) | Collect the statement number (NSPPC). | |||||
07076 | JR Z,LINE_USE | Jump forward if the required line was found; otherwise check the validity of the statement number - must be zero. | |||||
07078 | AND A | ||||||
07079 | JR NZ,REPORT_N | ||||||
07081 | LD B,A | Also check that the 'first line after' is not after the actual 'end of program'. | |||||
07082 | LD A,(HL) | ||||||
07083 | AND 192 | ||||||
07085 | LD A,B | ||||||
07086 | JR Z,LINE_USE | Jump forward with valid addresses; otherwise signal the error 'OK'. | |||||
Report 0 - OK.
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07088 | RST 8 | Use the error handling routine. | |||||
07089 | DEFB 255 | ||||||
Note: obviously not an error in the normal sense - but rather a jump past the program.
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