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Fixes #86 Create a Boot Loader (#134)

This commit is contained in:
Stefan Arentz 2017-01-22 20:02:26 -05:00 committed by GitHub
parent 9a94156a5b
commit e0943d051a
4 changed files with 236 additions and 5 deletions
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2
src/Makefile
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@ -25,7 +25,7 @@ CFLAGS=-std=gnu11 -O3 -Wall -Wextra -Werror -Wno-unused-parameter
LDFLAGS=-g -L/usr/local/lib
EWM_EXECUTABLE=ewm
EWM_SOURCES=cpu.c ins.c pia.c mem.c ewm.c fmt.c two.c scr.c dsk.c chr.c alc.c one.c tty.c utl.c
EWM_SOURCES=cpu.c ins.c pia.c mem.c ewm.c fmt.c two.c scr.c dsk.c chr.c alc.c one.c tty.c utl.c boo.c
EWM_OBJECTS=$(EWM_SOURCES:.c=.o)
EWM_LIBS=-lSDL2

164
src/boo.c Normal file
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@ -0,0 +1,164 @@
// The MIT License (MIT)
//
// Copyright (c) 2015 Stefan Arentz - http://github.com/st3fan/ewm
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#include <string.h>
#include <SDL2/SDL.h>
#include "tty.h"
#include "boo.h"
static char *menu[24] = {
"****************************************",
"* *",
"* _______ ________ _______ *",
"* ! ___! ! ! ! ! ! *",
"* ! ___! ! ! ! ! *",
"* !_______!________!__!_!__! *",
"* *",
"* GITHUB.COM/ST3FAN/EWM *",
"* *",
"* *",
"* WHAT WOULD YOU LIKE TO EMULATE? *",
"* *",
"* 1) APPLE 1 *",
"* 6502 / 8KB / WOZ MONITOR *",
"* *",
"* 2) REPLICA 1 *",
"* 65C02 / 48KB / KRUSADER *",
"* *",
"* 3) APPLE ][+ *",
"* 6502 / 64KB (LANGUAGE CARD) *",
"* DISK II / AUTOSTART ROM *",
"* *",
"* *",
"****************************************"
};
int ewm_boo_main(int argc, char **argv) {
// Setup SDL
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_EVENTS) < 0) {
fprintf(stderr, "Failed to initialize SDL: %s\n", SDL_GetError());
return 1;
}
SDL_Window *window = SDL_CreateWindow("EWM v0.1 / Apple 1", 400, 60, 280*3, 192*3, SDL_WINDOW_SHOWN);
if (window == NULL) {
fprintf(stderr, "Failed create window: %s\n", SDL_GetError());
return 1;
}
SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
if (renderer == NULL) {
fprintf(stderr, "Failed to create renderer: %s\n", SDL_GetError());
return 1;
}
SDL_RenderSetLogicalSize(renderer, 280*3, 192*3);
// We only need a tty to display the menu
struct ewm_tty_t *tty = ewm_tty_create(renderer);
// Main loop
uint32_t ticks = SDL_GetTicks();
uint32_t phase = 1;
int result = -1;
while (result == -1) {
// Handle the next event
SDL_Event event;
while (SDL_PollEvent(&event) != 0) {
switch (event.type) {
case SDL_QUIT:
result = EWM_BOO_QUIT;
break;
case SDL_KEYDOWN:
switch (event.key.keysym.sym) {
case SDLK_1:
result = EWM_BOO_BOOT_APPLE1;
break;
case SDLK_2:
result = EWM_BOO_BOOT_REPLICA1;
break;
case SDLK_3:
result = EWM_BOO_BOOT_APPLE2PLUS;
break;
}
break;
}
}
// If we are done, exit
if (result != -1) {
break;
}
// Update the screen
if ((SDL_GetTicks() - ticks) >= (1000 / EWM_BOO_FPS)) {
if (tty->screen_dirty || (phase == 0) || ((phase % (EWM_BOO_FPS / 4)) == 0)) {
SDL_SetRenderDrawColor(tty->renderer, 0, 0, 0, 255);
SDL_RenderClear(tty->renderer);
for (int i = 0; i < 24; i++) {
char *p = (char*) tty->screen_buffer;
p += (i * 40);
memcpy(p, menu[i], 40);
}
tty->screen_cursor_column = 34;
tty->screen_cursor_row = 10;
//strcpy((char*) tty->screen_buffer, "1) APPLE 1 2) REPLICA 1 3) APPLE ][+");
ewm_tty_refresh(tty, phase, EWM_BOO_FPS);
tty->screen_dirty = false;
SDL_RenderPresent(tty->renderer);
}
ticks = SDL_GetTicks();
phase += 1;
if (phase == EWM_BOO_FPS) {
phase = 0;
}
}
}
// Destroy SDL
SDL_DestroyWindow(window);
SDL_DestroyRenderer(renderer);
SDL_Quit();
return result;
}

37
src/boo.h Normal file
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@ -0,0 +1,37 @@
// The MIT License (MIT)
//
// Copyright (c) 2015 Stefan Arentz - http://github.com/st3fan/ewm
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#ifndef EWM_BOO_H
#define EWM_BOO_H
#include <SDL2/SDL.h>
#define EWM_BOO_QUIT (0)
#define EWM_BOO_BOOT_APPLE1 (1)
#define EWM_BOO_BOOT_REPLICA1 (2)
#define EWM_BOO_BOOT_APPLE2PLUS (3)
#define EWM_BOO_FPS (40)
int ewm_boo_main(int argc, char **argv);
#endif // EWM_BOO_H

38
src/ewm.c
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@ -20,15 +20,45 @@
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#include <getopt.h>
#include <SDL2/SDL.h>
#include "one.h"
#include "two.h"
#include "boo.h"
int main(int argc, char **argv) {
if (strcmp(argv[1], "one") == 0) {
return ewm_one_main(argc-1, &argv[1]);
if (argc > 1) {
// Delegate to the Apple 1 / Replica 1 emulation
if (strcmp(argv[1], "one") == 0) {
return ewm_one_main(argc-1, &argv[1]);
}
// Delegate to the Apple ][+ emulation
if (strcmp(argv[1], "two") == 0) {
return ewm_two_main(argc-1, &argv[1]);
}
return 1; // TODO Print usage
}
if (strcmp(argv[1], "two") == 0) {
return ewm_two_main(argc-1, &argv[1]);
// If we were not started with no arguments then we run the bootloader
switch (ewm_boo_main(argc, argv)) {
case EWM_BOO_BOOT_APPLE1: {
char *args[] = { "one", "-model", "apple1", NULL };
return ewm_one_main(3, args);
}
case EWM_BOO_BOOT_REPLICA1: {
char *args[] = { "one", "-model", "replica1", NULL };
return ewm_one_main(3, args);
}
case EWM_BOO_BOOT_APPLE2PLUS: {
char *args[] = { "two", NULL };
return ewm_two_main(1, args);
}
}
return 1;
}