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83 lines
1.2 KiB

cseg segment
assume cs:cseg, ds:cseg, ss:cseg
org 100h
.386
start:
mov ax, 13h
int 10h
mov dx, 3c8h
xor al, al
out dx, al
inc dx
mov cx, 256
xor al, al
lopp: out dx, al
out dx, al
out dx, al
inc al
dec cx
jnz lopp
mov ax, 0a000h
mov es, ax
fild y_rad
fild x_rad
loopdr:
fild angle
fsincos
fmul st, st(2)
fistp x_co
fmul st, st(2)
fistp y_co
add x_co, 160
add y_co, 100
xor di, di
mov ax, y_co
shl ax, 6
add di, ax
shl ax, 2
add di, ax
add di, x_co
mov byte ptr es:[di], cl
inc cl
fadd yvel
fxch st(1)
fadd xvel
fxch st(1)
inc angle
jnz loopdr
xor ax, ax
int 16h
mov ax, 3
int 10h
int 20h
x_co dw 0
y_co dw 0
x_rad dw 10
y_rad dw 10
xvel dq 0.001
yvel dq 0.001
angle dw 0
cseg ends
end start