QkoSad
97 lines
1.1 KiB
NASM
Executable File
97 lines
1.1 KiB
NASM
Executable File
@END //check if button is pressed
|
|
0;JMP
|
|
|
|
(BLACK)
|
|
//start= 16384 the start of the screen memory
|
|
@SCREEN
|
|
D=A
|
|
@start
|
|
M=D
|
|
|
|
//n=8,192 this is the memory for the display =addreass of the keyboard - address of the screen
|
|
@8192
|
|
D=A
|
|
@n
|
|
M=D
|
|
|
|
//i=0 this is the index for each group of pixels
|
|
@i
|
|
M=0
|
|
|
|
(LOOP1)
|
|
//if i==n goto end
|
|
@i
|
|
D=M
|
|
@n
|
|
D=D-M
|
|
@END
|
|
D;JEQ
|
|
|
|
//start+1=-1 set each group of pixels to -1 which is = 111111111111
|
|
@start
|
|
D=M
|
|
@i
|
|
A=D+M
|
|
M=-1
|
|
|
|
// increment i by 1
|
|
@i
|
|
M=M+1
|
|
|
|
// go back to the start of the loop
|
|
@LOOP1
|
|
0;JMP
|
|
|
|
(WHITE)
|
|
//start= 16384 the start of the screen memory
|
|
@SCREEN
|
|
D=A
|
|
@start
|
|
M=D
|
|
|
|
//n=8,192 this is the memory for the display =addreass of the keyboard - address of the screen
|
|
@8192
|
|
D=A
|
|
@n
|
|
M=D
|
|
|
|
//i=0 this is the index for each group of pixels
|
|
@i
|
|
M=0
|
|
|
|
(LOOP2)
|
|
//if i==n goto end
|
|
@i
|
|
D=M
|
|
@n
|
|
D=D-M
|
|
@END
|
|
D;JEQ
|
|
|
|
//start+1=-1 set each group of pixels to 0 which is = 00000000
|
|
@start
|
|
D=M
|
|
@i
|
|
A=D+M
|
|
M=0
|
|
|
|
// increment i by 1
|
|
@i
|
|
M=M+1
|
|
|
|
// go back to the start of the loop
|
|
@LOOP2
|
|
0;JMP
|
|
|
|
//check if button is pressed
|
|
(END)
|
|
@KBD
|
|
D=M
|
|
@WHITE
|
|
D;JEQ
|
|
@KBD
|
|
D=M
|
|
@BLACK
|
|
D;JNE
|
|
@END
|
|
0;JMP |