Routines
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1538: parse_download: Determine what to do with telesoftware download based on the footer.
Used by the routine at download_complete.
This routine replaces code from the OEL Issue 2.3 ROM.
parse_download 1538 LD HL,(page_receive_buffer_pointer) Set DE to page_receive_buffer_pointer + 940 (row 23, column 20).
153B LD DE,$03AC
153E ADD HL,DE
153F EX DE,HL
1540 LD HL,prog_length Set HL to address of prog_length.
1543 CALL load_next_nibbles Call load_next_nibbles.
1546 LD HL,vars_length Set HL to address of vars_length.
1549 CALL load_next_nibbles Call load_next_nibbles.
154C LD HL,command_length Set HL to address of command_length.
154F CALL load_next_nibbles Call load_next_nibbles.
1552 LD HL,start_address Set HL to address of start_address.
1555 CALL load_next_nibbles Call load_next_nibbles.
1558 LD A,(footer_buffer) Load first byte of footer_buffer and strip parity bit.
155B AND $7F
155D CP $42 If character is not $42 (B) skip to parse_download_0.
155F JR NZ,parse_download_0
1561 LD A,($5B8A) Load second byte of footer_buffer and strip parity bit.
1564 AND $7F
1566 CP $48 If character is $48 (H) jump to execute_basic_stop.
1568 JP Z,execute_basic_stop
156B CP $52 If character is $52 (R) jump to execute_basic_continue.
156D JP Z,execute_basic_continue
1570 CP $45 If character is $45 (E) jump to setup_vars_eline.
1572 JP Z,setup_vars_eline
parse_download_0 1575 LD A,($5B8A) Load second byte of footer_buffer and strip parity bit.
1578 AND $7F
157A CP $52 If character is $52 (R) jump to execute_code.
157C JP Z,execute_code
157F JP return_to_STOP Else jump to return_to_STOP.
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