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; ========================================================================
;
; (C) Copyright 2023 by Molly Rocket, Inc., All Rights Reserved.
;
; This software is provided 'as-is', without any express or implied
; warranty. In no event will the authors be held liable for any damages
; arising from the use of this software.
;
; Please see https://computerenhance.com for further information
;
; ========================================================================
; ========================================================================
; LISTING 55
; ========================================================================
bits 16
; Start image after one row, to avoid overwriting our code!
mov bp, 64*4
; Draw the solid rectangle red/blue/alpha
mov dx, 64
y_loop_start:
mov cx, 64
x_loop_start:
mov byte [bp + 0], cl ; Red
mov byte [bp + 1], 0 ; Green
mov byte [bp + 2], dl ; Blue
mov byte [bp + 3], 255 ; Alpha
add bp, 4
loop x_loop_start
sub dx, 1
jnz y_loop_start
; Add the line rectangle green
mov bp, 64*4 + 4*64 + 4
mov bx, bp
mov cx, 62
outline_loop_start:
mov byte [bp + 1], 255 ; Top line
mov byte [bp + 61*64*4 + 1], 255 ; Bottom line
mov byte [bx + 1], 255 ; Left line
mov byte [bx + 61*4 + 1], 255 ; Right line
add bp, 4
add bx, 4*64
loop outline_loop_start
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