Contact Sam Cruise: Routine at 59136

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