Routines
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A69C: Draw explosion debris
Used by the routine at C25E.
A69C LD B,$08 Set B to the number of bytes to copy
A69E LD A,(DE) Set B to the graphic data byte
A69F OR (HL) Blend graphic data of debris with graphic data of room
A6A0 LD (HL),A Copy graphic data to room graphic data buffer
A6A1 INC DE Increment graphic data address
A6A2 PUSH DE Save DE
A6A3 LD DE,$0020 Increment address room graphic data to the next line
A6A6 ADD HL,DE
A6A7 POP DE Restore DE
A6A8 DJNZ $A69E Jump back until all bytes copied
A6AA RET
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