Routines |
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The subroutine returns with the system variable holding the line number of the following line.
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LN_FETCH | 190F | LD E,(HL) | The line number held by the system variable is collected. | |||||
1910 | INC HL | |||||||
1911 | LD D,(HL) | |||||||
1912 | PUSH HL | The pointer is saved. | ||||||
1913 | EX DE,HL | The line number is moved to the HL register pair and incremented. | ||||||
1914 | INC HL | |||||||
1915 | CALL LINE_ADDR | The address of the start of this line is found, or the next line if the actual line number is not being used. | ||||||
1918 | CALL LINE_NO | The number of that line is fetched. | ||||||
191B | POP HL | The pointer to the system variable is restored. | ||||||
This entry point is used by the routine at ED_UP.
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LN_STORE | 191C | BIT 5,(IY+$37) | Return if in 'INPUT mode' (bit 5 of FLAGX set). | |||||
1920 | RET NZ | |||||||
1921 | LD (HL),D | Otherwise proceed to enter the line number into the two locations of the system variable. | ||||||
1922 | DEC HL | |||||||
1923 | LD (HL),E | |||||||
1924 | RET | Return when it has been done. |
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