First version
This commit is contained in:
Paulo Garcia
commit
24cfdc0b6a
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#
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# Makefile
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# Apple2BuildPipelineSample
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#
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# Part of a sample build pipeline for Apple II software development
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#
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# Created by Quinn Dunki on 8/15/14.
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# One Girl, One Laptop Productions
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# http://www.quinndunki.com
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# http://www.quinndunki.com/blondihacks
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#
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include make/head.mk
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# Customize this file to control what gets built, what machines to
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# target, where in memory to put it, etc.
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# The name of your system or binary file to build goes here:
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PGM=gr2
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# Set the config you are building for. See these pages for details:
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# http://cc65.github.io/cc65/doc/apple2.html#s4
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# http://cc65.github.io/cc65/doc/apple2enh.html#s4
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#
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# Uncomment the one you want below (the first one is the default):
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# MACHINE = apple2
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# MACHINE = apple2-dos33
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# MACHINE = apple2-system
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# MACHINE = apple2-loader
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# MACHINE = apple2-reboot
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# MACHINE = apple2enh
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# MACHINE = apple2enh-dos33
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# MACHINE = apple2enh-system
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# MACHINE = apple2enh-loader
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# MACHINE = apple2enh-reboot
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# Uncomment and set this to your starting address in Apple II memory
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# if necessary:
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# START_ADDR = 6000
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# Set the default CPU to assemble for. You can change this in the
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# body of a .s file using control commands like ".PC02". Uncomment
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# the one you want below (the first one is the default):
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# CPU = 6502
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# CPU = 65SC02
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# CPU = 65C02
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# CPU = 65816
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# Note: You can assemble for 65816 in 16-bit mode but the C compiler
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# will only produce 8-bit code.
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# Any *.c files in your main project directory will automatically be
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# built. But, if you have subdirectories with C files in them, you
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# should add them to the list of C_SRCS to build. Do that by
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# uncommenting the following line and changing "someSubDir" to match
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# the subdirectory you have created. Add multiple lines like this
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# for each subdirectory:
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# C_SRCS += $(wildcard someSubDir/*.c)
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# Any *.s files in your main project directory will automatically be
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# built. But, if you have subdirectories with assembly files in them,
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# you should add them to the list of ASM_SRCS to build. Do that by
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# uncommenting the following line and changing "someSubDir" to match
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# the subdirectory you have created. Add multiple lines like this
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# for each subdirectory:
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# ASM_SRCS += $(wildcard someSubDir/*.s)
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# If you have a non-standard cc65 install, you may need to change
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# some of these. Uncomment the following line and change it to the
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# correct path to CC65_HOME if the default is not correct:
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# export CC65_HOME := /usr/local/lib/cc65
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#
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# If the path to the cc65 binaries is not correct, uncomment this
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# line and change it:
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CC65_BIN = /usr/local/bin
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# If you want to add arguments to the compile commandline, add them
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# to this variable:
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# CFLAGS += -Os
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# If you want to add arguments to the assembly commandline, add them
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# to this variable:
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# ASMFLAGS += -g
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# If you want to add arguments to the link commandline, add them to
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# this variable:
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# LDFLAGS += -v
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# If you have java installed in a non-standard location, you can set
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# the path to it by uncommenting the following line:
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# export JAVA=/usr/bin/java
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# Do not change anything else below here...
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include make/tail.mk
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//
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// a2graph.c
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// test
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//
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// Created by Paulo Garcia on 2015-11-26.
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// Copyright © 2015 Paulo Garcia. All rights reserved.
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//
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <conio.h>
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#include <peekpoke.h>
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#include "a2graph.h"
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void gr_setmode(unsigned int CRTMODE)
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{
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/* note: the following constants must be hex values
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or cc65 complains that the constant is a long */
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switch(CRTMODE)
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{
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case MODE_TEXT_PAGE_1:
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POKE(0xc051,0); /* text */
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POKE(0xc054,0); /* page 1 */
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break;
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case MODE_TEXT_PAGE_2:
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POKE(0xc051,0); /* text */
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POKE(0xc055,0); /* page 2 */
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break;
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case MODE_LORES_TEXT_PAGE_1:
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POKE(0xc056,0); /* lo res */
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POKE(0xc054,0); /* page 1 */
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POKE(0xc050,0); /* set graphics */
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break;
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case MODE_LORES_FULL_PAGE_1:
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POKE(0xc056,0); /* lo res */
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POKE(0xc054,0); /* page 1 */
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POKE(0xc050,0); /* set graphics */
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POKE(0xc052,0); /* full graphics */
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break;
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case MODE_LORES_FULL_PAGE_2:
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POKE(0xc056,0); /* lo res */
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POKE(0xc055,0); /* page 2 */
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POKE(0xc050,0); /* set graphics */
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POKE(0xc052,0); /* full graphics */
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break;
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case MODE_HIRES_FULL_PAGE_2:
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POKE(0xc057,0); /* hi res */
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POKE(0xc055,0); /* page 2 */
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POKE(0xc050,0); /* set graphics */
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POKE(0xc052,0); /* full graphics */
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break;
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case MODE_HIRES_FULL_PAGE_1:
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default:
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POKE(0xc057,0); /* hi res */
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POKE(0xc054,0); /* page 1 */
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POKE(0xc050,0); /* set graphics */
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POKE(0xc052,0); /* full graphics */
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}
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}
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void gr_fill(int page, unsigned ch)
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{
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int idx;
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unsigned fillcolor = ch * 0x11;
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for (idx = 0; idx < 8; idx++) {
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memset ((char *)textbase[idx]+page, fillcolor, 0x78);
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}
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}
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void gr_hlin(unsigned int x1, unsigned int x2, unsigned int y, colors_t color, int page)
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{
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int length;
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int y1, pos;
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unsigned char c2 = (unsigned char ) ((int)color & 15);
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unsigned char *crt, c1;
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if (x2<x1) {
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//swap
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pos=x2;
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x2=x1;
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x1=pos;
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}
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length = x2-x1;
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y1 = y >> 1;
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x1 = x1 + page;
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if (y&1) {
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/* odd rows in high nibble mask value to preserve low nibble */
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c1 = 0xf;
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c2 = c2 << 0x4;
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} else {
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/* even rows in low nibble mask value to preserve high nibble */
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c1 = 0xf0;
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}
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crt = malloc(length);
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// Copy video memory first
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memcpy((void *)crt, (void *)(textbase[y1]+x1), length);
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// Apply color to all positions
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if (crt) {
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for (pos=0;pos<length;pos++) {
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*(crt+pos) = (*(crt+pos) & c1) | c2;
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}
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// Copy it back to video position
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memcpy((void *)(textbase[y1]+x1), (void *)crt, length);
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free(crt);
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}
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}
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void gr_vlin(unsigned int y1, unsigned int y2, unsigned int x, colors_t color, int page)
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{
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int pos;
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unsigned char c2;
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if (y2<y1) {
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//swap
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pos=y2;
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y2=y1;
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y1=pos;
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}
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x = x + page;
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c2 = (unsigned char ) ((int)color & 15);
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for (pos=y1;pos<=y2;pos++) {
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gr_plot1(x,pos,c2);
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}
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}
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void gr_plot(int x,int y,colors_t color,int page)
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{
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unsigned char c2;
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x = x + page;
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c2 = (unsigned char ) ((int)color & 15);
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gr_plot1(x,y,c2);
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}
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/*
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Internal plot - don't call directly
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x already account for page, and color is calculated too
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*/
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void gr_plot1(int x, int y, unsigned char c2)
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{
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unsigned char *crt, c1;
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int y1 = y >> 1;
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int *pos = textbase;
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if (y&1) {
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/* odd rows in high nibble */
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/* mask value to preserve low nibble */
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c1 = 0xf;
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c2 = c2 << 0x4;
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} else {
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/* even rows in low nibble */
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/* mask value to preserve high nibble */
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c1 = 0xf0;
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}
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crt = (unsigned char *)(*(pos+y1))+x;
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*crt = (*crt & c1) | c2;
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}
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int gr_khit()
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{
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unsigned char *KP = (unsigned char*)0xC000;
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unsigned char c;
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/* read the keyboard buffer */
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/* and return 0 if no character is waiting */
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c = KP[0];
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if(c<128)return 0;
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return (int)c;
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}
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void gr_clearkey()
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{
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/* return the last key press */
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unsigned char *KEYPRESS = (unsigned char*)0xC000;
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/* clear the last key press */
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unsigned char *KEYCLEAR = (unsigned char*)0xC010;
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/* clear stragglers from the keyboard buffer */
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while(KEYPRESS[0] > 127)KEYCLEAR[0]=0;
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}
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void gr_sprite(unsigned int x, unsigned int y, unsigned int w, unsigned int h, int page, unsigned char* cl)
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{
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int x1,y1;
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unsigned char ci = 0;
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unsigned char *cl1 = cl;
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int plt =0; // 0 = with mask - 1 = full byte
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x = x + page;
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y1 = y;
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do {
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plt=0;
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if (!(y&1) && (y1<(y+h-1))) {
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// even row
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plt=1; //doulbe
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}
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if (plt) {
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y1++;
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} else {
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// plot single line
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for (x1=x;x1<(x+w);x1++) {
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gr_plot1(x1,y1,*(cl1+ci));
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ci++;
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}
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}
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y1++;
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} while (y1<(y+h));
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}
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@ -0,0 +1,87 @@
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//
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// a2graph.h
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// test
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//
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// Created by Paulo Garcia on 2015-11-26.
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// Copyright © 2015 Paulo Garcia. All rights reserved.
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//
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#ifndef a2graph_h
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#define a2graph_h
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#define PAGE_1 0
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#define PAGE_2 1024
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#define MODE_TEXT_PAGE_1 0x0
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#define MODE_TEXT_PAGE_2 0x1
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#define MODE_LORES_FULL_PAGE_1 0x2
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#define MODE_LORES_FULL_PAGE_2 0x3
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#define MODE_HIRES_FULL_PAGE_1 0x4
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#define MODE_HIRES_FULL_PAGE_2 0x5
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#define MODE_LORES_TEXT_PAGE_1 0x6
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/* Colors */
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typedef enum {
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BLACK = 0,
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MAGENTA,
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DARK_BLUE,
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PURPLE,
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DARK_GREEN,
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GREY,
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MEDIUM_BLUE,
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LIGHT_BLUE,
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BROWN,
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ORANGE,
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GREY_2,
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PINK,
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GREEN,
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YELLOW,
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AQUA,
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WHITE
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} colors_t;
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/* base addresses for primary text page */
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/* also the base addresses for the 48 scanline pairs */
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/* for lores graphics mode 40 x 48 x 16 colors */
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int textbase[24]={
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0x0400,
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0x0480,
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0x0500,
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0x0580,
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0x0600,
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0x0680,
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0x0700,
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0x0780,
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0x0428,
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0x04A8,
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0x0528,
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0x05A8,
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0x0628,
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0x06A8,
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0x0728,
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0x07A8,
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0x0450,
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0x04D0,
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0x0550,
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0x05D0,
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0x0650,
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0x06D0,
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0x0750,
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0x07D0
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};
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/* Function Prototypes */
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extern void gr_setmode(unsigned int CRTMODE);
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extern void gr_plot(int x,int y, colors_t color,int page);
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extern void gr_hlin(unsigned int x1, unsigned int x2, unsigned int y, colors_t color, int page);
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extern void gr_vlin(unsigned int y1, unsigned int y2, unsigned int x, colors_t color, int page);
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extern void gr_fill(int page, unsigned ch);
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extern int gr_khit();
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extern void gr_clearkey();
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extern void gr_sprite(unsigned int x, unsigned int y, unsigned int w, unsigned int h, int page, unsigned char *);
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/* private functions */
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void gr_plot1(int x, int y, unsigned char c2);
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#endif /* a2graph_h */
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@ -0,0 +1,83 @@
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/*
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* main.c
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* gr2
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*
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* Created by Paulo Garcia on 2015-12-16.
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* Copyright (c) 2015 Paulo Garcia. All rights reserved.
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*
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*/
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#include <stdio.h>
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#include <conio.h>
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#include <string.h>
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#include <peekpoke.h>
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#include "a2graph.h"
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unsigned char sprite[36] = { BLACK, BLACK, BLACK, MAGENTA, MAGENTA, BLACK,
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BLACK, BLACK, BLACK, MAGENTA, BLACK, BLACK,
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BLACK, WHITE, BLACK, MAGENTA, BLACK, BLACK,
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WHITE, WHITE, WHITE, WHITE, WHITE, WHITE,
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BLACK, BLACK, BLACK, MAGENTA, BLACK, BLACK,
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BLACK, BLACK, BLACK, MAGENTA, MAGENTA, BLACK};
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int my_test()
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{
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int page=0;
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int x,y;
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//fill_screen(PAGE_1,0);
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for (x=5;x<35;x++) {
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for(y=10;y<36;y+=2) {
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gr_plot(x, y, DARK_BLUE, page);
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}
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}
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for (y=10;y<35;y++) {
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for(x=5;x<36;x+=2) {
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gr_plot(x, y, YELLOW, page);
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}
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}
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}
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int main(void)
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{
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int i,j;
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gr_clearkey();
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printf("Press any key to start...");
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while(gr_khit()==0);
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gr_setmode(MODE_LORES_TEXT_PAGE_1);
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gr_fill(PAGE_1, BLACK);
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while(gr_khit()==0);
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my_test();
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j=0;
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for(i=0;i<48;i++) {
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gr_hlin(39,0,i,j,PAGE_1);
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j++;
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if (j==16) j=0;
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}
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j=0;
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for(i=0;i<40;i++) {
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gr_vlin(47,0,i,j,PAGE_1);
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j++;
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if (j==16) j=0;
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}
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gr_clearkey();
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while(gr_khit()==0);
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for (i=33;i>0;i--) {
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gr_sprite(i, 10, 6, 6, PAGE_1, sprite);
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}
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gr_clearkey();
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while(gr_khit()==0);
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for (i=0;i<16;i++) {
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gr_fill(0, i);
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}
|
||||
|
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return 0;
|
||||
}
|
||||
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Reference in New Issue