Routines
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08C4: clear_page_buffer: Clear page display buffer to spaces.
Used by the routines at display_menu, enter_subcode_and_clear and select_channel.
clear_page_buffer 08C4 PUSH BC Preserve registers.
08C5 PUSH DE
08C6 PUSH HL
08C7 LD HL,(page_display_buffer_pointer) Fill 952 bytes with $20 (space character) from byte 8 of page display buffer.
08CA LD BC,$0008
08CD ADD HL,BC
08CE LD D,H
08CF LD E,L
08D0 INC DE
08D1 LD (HL),$20
08D3 LD BC,$03B8
08D6 LDIR
08D8 CALL clear_screen Clear the screen.
08DB POP HL Restore registers and return.
08DC POP DE
08DD POP BC
08DE RET
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