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Routines |
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OUT_CODE | 05615 | LD E,48 | Increase the value in the A register by 48. | |||||||
05617 | ADD A,E | |||||||||
This entry point is used by the routine at PRINT_A_1 with A holding the code of the character to be printed.
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PRINT_A_2 | 05618 | EXX | Save the registers. | |||||||
05619 | PUSH HL | |||||||||
05620 | LD HL,(23633) | Fetch the base address for the current channel (CURCHL). This will point to an output address. | ||||||||
This entry point is used by the routine at INPUT_AD with A holding the code of the character to be printed.
Now call the actual subroutine. HL points to the output or the input address as directed.
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CALL_SUB | 05623 | LD E,(HL) | Fetch the low byte. | |||||||
05624 | INC HL | Fetch the high byte. | ||||||||
05625 | LD D,(HL) | |||||||||
05626 | EX DE,HL | Move the address to the HL register pair. | ||||||||
05627 | CALL CALL_JUMP | Call the actual subroutine. | ||||||||
05630 | POP HL | Restore the registers. | ||||||||
05631 | EXX | |||||||||
05632 | RET | Return will be from here unless an error occurred. |
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