Routines
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38249: Fill Memory
Used by the routines at Select_Game_Options and Clear_Screen.
Fills an area of memory with zero. The entry point at FillMemory_WithValue fills it with the byte in E.
Input
BC Number of bytes
HL Address of the first byte
FillMemory 38249 LD E,0 Set the value to write to 0.
This entry point is used by the routine at Clear_Attributes.
FillMemory_WithValue 38251 LD (HL),E Write the value to the address.
38252 INC HL Move on to the next address.
Decrease the byte counter and loop back to FillMemory_WithValue until all of the bytes have been written.
38253 DEC BC Decrement the byte counter.
38254 LD A,B Jump back to FillMemory_WithValue until all of the bytes have been written.
38255 OR C
38256 JR NZ,FillMemory_WithValue
38258 RET Return.
View the equivalent code in;
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