LB for modem

Hello everyone who see above I am sending this letter (slightly shortened) by second swarm again, because the first time it hit BADS. Introducing the map that is being unloaded when selecting the "SAVE" option in the normal "LAST" BATTLE" , (there are all the variables in order bots and databases, etc.), it should be sent bark on the modem, or after each player action, causing the map change to transmit several bytes (this is of course more complicated and not needed in a turn-based game) or this is what I came up with (if only memory): before the player's turn, duplicate this map (#2600 or less? bytes) to- something in memory, then at the end of the ho- yes compare these two cards by subtraction old card from new (or vice versa): old card:# 00 02 03 00 00 99 99 00 new card :# 01 02 03 03 02 99 98 00 compare card:# 01 00 00 03 02 00 FF 00 The comparison map will have a large number of zeros or numbers (mostly) close to it (#FE,#FF,1,2) because map basically does not change, but various co- ordinates and strength indicators, etc. change vary slightly. Then pack the comparison card any suitable (in terms of speed and algorithm) inserted by the packer and transmit via modem, and on the second computer do the opposite. Thus, the transmitted block will be reduced by several (especially at the beginning) times. I have already tried this method on one one of his games with the computer: it was turn 80, I have a lot of troops, the computer(super brain level) too, though all there are two skirmishes. comparison map after my move was packed by LPC packer (who remembers this one :) up to four sectors !!! That is, you need to transfer everything four sectors. -+- ZXASM 3.00