Difference between revisions of "83Plus:BCALLs:4EEE"

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[[Category:83Plus:BCALLs:By Name:Link|GetVariableData]] [[Category:83Plus:BCALLs:By Name|GetVariableData]] [[Category:83Plus:BCALLs:By Address|5092 - GetVariableData]]
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[[Category:83Plus:BCALLs:By Name:Link|GetDataPacket]] [[Category:83Plus:BCALLs:By Name|GetDataPacket]] [[Category:83Plus:BCALLs:By Address|4EEE - GetDataPacket]]
 
== Synopsis ==
 
== Synopsis ==
'''Unofficial Name:''' GetVariableData
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'''Unofficial Name:''' GetDataPacket
  
'''BCALL Address:''' 5092
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'''BCALL Address:''' 4EEE
  
 
Receives a data packet over the link port and sends either acknowledge or bad checksum packets.
 
Receives a data packet over the link port and sends either acknowledge or bad checksum packets.
  
 
=== Inputs ===
 
=== Inputs ===
* ([[83Plus:RAM:8674|header]]+2): size of packet data
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* DE: address to receive data
* ([[83Plus:RAM:84DB|iMathPtr5]]): address to receive data
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* ([[83Plus:RAM:83EE|arcInfo]]): page of address to receive data (if in Flash ROM)
 
* ([[83Plus:RAM:83EE|arcInfo]]): page of address to receive data (if in Flash ROM)
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* BC: expected size of data packet
 
* iy+1Bh set up accordingly
 
* iy+1Bh set up accordingly
  
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== Comments ==
 
== Comments ==
This BCALL will throw ERR:LINK if any problems are found. It is a subroutine of [[83Plus:BCALLs:4EEE|GetDataPacket]].
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This BCALL will throw ERR:LINK if any problems are found. It functions the same as [[83Plus:BCALLs:4EEB|GetSmallPacket]] except it receives the first 4 bytes of the packet.
  
 
If the checksum is valid, an acknowledgement packet is sent. Otherwise, a bad checksum packet is sent and ERR:LINK is thrown.
 
If the checksum is valid, an acknowledgement packet is sent. Otherwise, a bad checksum packet is sent and ERR:LINK is thrown.

Latest revision as of 00:12, 20 February 2007

Synopsis

Unofficial Name: GetDataPacket

BCALL Address: 4EEE

Receives a data packet over the link port and sends either acknowledge or bad checksum packets.

Inputs

  • DE: address to receive data
  • (arcInfo): page of address to receive data (if in Flash ROM)
  • BC: expected size of data packet
  • iy+1Bh set up accordingly

Outputs

  • None

Destroys

  • All

Comments

This BCALL will throw ERR:LINK if any problems are found. It functions the same as GetSmallPacket except it receives the first 4 bytes of the packet.

If the checksum is valid, an acknowledgement packet is sent. Otherwise, a bad checksum packet is sent and ERR:LINK is thrown.