| Routines

59136: Copy a play area tile into the back buffer

Used by the routine at 59148.
Input
HL | Play area tile base address
59136 | LD DE,40990 | The first byte of the back buffer is at 40990
This entry point is also used by the routine at 59148 (with HL=40990 and DE holding a display file address) to copy the tile from the back buffer to the screen.
59139 | LD B,8 | There are 8 bytes to copy
59141 | LD A,(HL) | Copy the 8 tile bytes to the back buffer or the screen
59142 | LD (DE),A
59143 | INC H
59144 | INC D
59145 | DJNZ 59141
The address of this entry point is placed into bytes 8 and 9 of a policeman's buffer by the routine at 24832, and is also found in the command lists at 64940 and 65172.
59147 | RET |