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8bitworkshop/presets/cpc/easy_stdio_boxes.c
2021-12-02 13:01:02 -06:00

81 lines
3.8 KiB
C

//-----------------------------LICENSE NOTICE------------------------------------
// This file is part of CPCtelera: An Amstrad CPC Game Engine
// Copyright (C) 2015 ronaldo / Fremos / Cheesetea / ByteRealms (@FranGallegoBR)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//------------------------------------------------------------------------------
#include "cpctelera.h"
#include <stdio.h>
#include <string.h>
//
// MAIN PROGRAM:
// Do not disable firmware in this example, as printf makes use of it through putchar
//
void main(void) {
// Needed for screen clear to work
cpct_disableFirmware ();
cpct_disableUpperROM ();
// Clear Screen filling it up with 0's
cpct_clearScreen(0);
// Print out some messages using printf and sizeof to know the sizes in bytes
// ...of all the builting types in SDCC (using CPCtelera's aliases)
// We use Firmware Screen Character Commands to change colour on screen.
// Printing \0XX is equivalent to printing the character XX (in octal).
// Character 15 (017 in octal) does the PEN command, and uses immediate next
// character as the parameter for PEN. Then, \017\003 is equivalent to PEN 3.
//
printf(" \017\003Welcome to \017\002CPCtelera\017\003!\017\001\n\r\n\r");
printf("This example makes use of standard C");
printf("libraries to print out byte sizes of");
printf("standard SDCC types, using \017\002CPCtelera\017\001's");
printf("convenient aliases.\n\r\n\r");
printf("Size of \017\003 u8 \017\001=\017\002 %d \017\001byte\n\r", sizeof(u8));
printf("Size of \017\003u16 \017\001=\017\002 %d \017\001byte\n\r", sizeof(u16));
printf("Size of \017\003u32 \017\001=\017\002 %d \017\001byte\n\r", sizeof(u32));
printf("Size of \017\003u64 \017\001=\017\002 %d \017\001byte\n\r", sizeof(u64));
printf("Size of \017\003 i8 \017\001=\017\002 %d \017\001byte\n\r", sizeof(i8));
printf("Size of \017\003i16 \017\001=\017\002 %d \017\001byte\n\r", sizeof(i16));
printf("Size of \017\003i32 \017\001=\017\002 %d \017\001byte\n\r", sizeof(i32));
printf("Size of \017\003i64 \017\001=\017\002 %d \017\001byte\n\r", sizeof(i64));
printf("Size of \017\003f32 \017\001=\017\002 %d \017\001byte\n\r", sizeof(f32));
// cpct_disableFirmware ();
cpct_disableUpperROM ();
// 2 boxes with varying colour patterns
cpct_drawSolidBox((u8*)0xC265, cpct_px2byteM1(1, 0, 2, 1), 10, 20);
cpct_drawSolidBox((u8*)0xC275, cpct_px2byteM1(0, 2, 0, 1), 10, 20);
// 2 stripped boxes in 2 alternating colours
cpct_drawSolidBox((u8*)0xC355, 0xA0, 10, 20); // 0xA0 = cpct_px2byteM1(1, 0, 1, 0)
cpct_drawSolidBox((u8*)0xC365, 0x0A, 10, 20); // 0x0A = cpct_px2byteM1(2, 0, 2, 0)
// Another 2 stripped boxes, with the strips displaced
cpct_drawSolidBox((u8*)0xC445, 0x50, 10, 20); // 0x50 = cpct_px2byteM1(0, 1, 0, 1)
cpct_drawSolidBox((u8*)0xC455, 0x05, 10, 20); // 0x05 = cpct_px2byteM1(0, 2, 0, 2)
// 2 Boxes in solid colour (4 pixels of the same colour)
cpct_drawSolidBox((u8*)0xC535, cpct_px2byteM1(2, 2, 2, 2), 10, 20); // 0xF0
cpct_drawSolidBox((u8*)0xC545, cpct_px2byteM1(1, 1, 1, 1), 10, 20); // 0x0F
// Loop forever
while (1);
}