Routines
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122B: data_to_header_row: Copy header row data from recieve buffer to page display buffer.
Used by the routines at wait_and_decode_page and select_channel.
data_to_header_row 122B PUSH BC Preserve registers.
122C PUSH DE
122D PUSH HL
122E LD BC,$0008 Copy 32 bytes from page receive buffer + 8 to page display buffer + 8.
1231 LD HL,(page_display_buffer_pointer)
1234 ADD HL,BC
1235 EX DE,HL
1236 LD HL,(page_receive_buffer_pointer)
1239 ADD HL,BC
123A LD BC,$0020
123D LDIR
123F POP HL Restore registers and return.
1240 POP DE
1241 POP BC
1242 RET
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