mirror of
https://github.com/mauiaaron/apple2.git
synced 2024-06-08 16:29:27 +00:00
849 lines
22 KiB
C
849 lines
22 KiB
C
/*
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* Apple // emulator for Linux: Miscellaneous support
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*
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* Copyright 1994 Alexander Jean-Claude Bottema
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* Copyright 1995 Stephen Lee
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* Copyright 1997, 1998 Aaron Culliney
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* Copyright 1998, 1999, 2000 Michael Deutschmann
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*
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* This software package is subject to the GNU General Public License
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* version 2 or later (your choice) as published by the Free Software
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* Foundation.
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*
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* THERE ARE NO WARRANTIES WHATSOEVER.
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <time.h>
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#include <pthread.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <sys/io.h>
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#include "misc.h"
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#include "video.h"
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#include "disk.h"
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#include "interface.h"
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#include "keys.h"
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#include "debug.h"
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#include "cpu.h"
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#include "glue.h"
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#include "prefs.h"
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#include "timing.h"
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/* ----------------------------------
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internal apple2 variables
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---------------------------------- */
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static unsigned char apple_ii_rom[12288];
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#ifdef APPLE_IIE
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static unsigned char apple_iie_rom[32768]; /* //e */
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#endif
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pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
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pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
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/* in debugger.c */
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extern int breakpoints[];
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extern int watchpoints[];
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extern int op_breakpoints[256];
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GLUE_FIXED_READ(read_ram_default,apple_ii_64k)
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GLUE_FIXED_WRITE(write_ram_default,apple_ii_64k)
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GLUE_BANK_READ(read_ram_bank,base_d000_rd)
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GLUE_BANK_MAYBEWRITE(write_ram_bank,base_d000_wrt)
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GLUE_BANK_READ(read_ram_lc,base_e000_rd)
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GLUE_BANK_MAYBEWRITE(write_ram_lc,base_e000_wrt)
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#ifdef APPLE_IIE
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GLUE_BANK_READ(iie_read_ram_default,base_ramrd)
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GLUE_BANK_WRITE(iie_write_ram_default,base_ramwrt)
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GLUE_BANK_READ(iie_read_ram_text_page0,base_textrd)
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GLUE_BANK_WRITE(iie_write_screen_hole_text_page0,base_textwrt)
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GLUE_BANK_READ(iie_read_ram_hires_page0,base_hgrrd)
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GLUE_BANK_WRITE(iie_write_screen_hole_hires_page0,base_hgrwrt)
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GLUE_BANK_READ(iie_read_ram_zpage_and_stack,base_stackzp)
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GLUE_BANK_WRITE(iie_write_ram_zpage_and_stack,base_stackzp)
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GLUE_BANK_READ(iie_read_slot3,base_c3rom)
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GLUE_BANK_READ(iie_read_slotx,base_cxrom)
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/* -------------------------------------------------------------------------
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c_set_altchar() - set alternate character set
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------------------------------------------------------------------------- */
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void c_set_altchar()
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{
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video_loadfont(0x40,0x20,mousetext_glyphs,1);
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video_loadfont(0x60,0x20,lcase_glyphs,2);
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video_redraw();
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}
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/* -------------------------------------------------------------------------
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c_set_primary_char() - set primary character set
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------------------------------------------------------------------------- */
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void c_set_primary_char()
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{
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video_loadfont(0x40,0x40,ucase_glyphs,3);
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video_redraw();
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}
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#endif /* APPLE_IIE */
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/* -------------------------------------------------------------------------
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c_initialize_font(): Initialize ROM character table to primary char set
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------------------------------------------------------------------------- */
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void c_initialize_font()
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{
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video_loadfont(0x00,0x40,ucase_glyphs,2);
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video_loadfont(0x40,0x40,ucase_glyphs,3);
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video_loadfont(0x80,0x40,ucase_glyphs,0);
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video_loadfont(0xC0,0x20,ucase_glyphs,0);
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video_loadfont(0xE0,0x20,lcase_glyphs,0);
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video_redraw();
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}
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/* -------------------------------------------------------------------------
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c_initialize_tables()
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------------------------------------------------------------------------- */
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void c_initialize_tables() {
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int i;
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pre_compact(); /* Prepare for VM compression */
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/* reset everything */
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for (i = 0; i < 0x10000; i++)
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{
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#ifdef APPLE_IIE
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if (apple_mode == IIE_MODE)
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{
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cpu65_vmem[i].r = iie_read_ram_default;
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cpu65_vmem[i].w = iie_write_ram_default;
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}
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else
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#endif
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{
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cpu65_vmem[i].r = read_ram_default;
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cpu65_vmem[i].w = write_ram_default;
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}
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}
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/* language card read/write area */
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for (i = 0xD000; i < 0xE000; i++)
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{
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{
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cpu65_vmem[i].w =
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write_ram_bank;
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cpu65_vmem[i].r =
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read_ram_bank;
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}
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}
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for (i = 0xE000; i < 0x10000; i++)
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{
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{
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cpu65_vmem[i].w =
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write_ram_lc;
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cpu65_vmem[i].r =
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read_ram_lc;
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}
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}
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/* done common initialization */
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#ifdef APPLE_IIE
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/* initialize zero-page, //e specific */
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if (apple_mode == IIE_MODE)
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{
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for (i = 0; i < 0x200; i++)
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{
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cpu65_vmem[i].r =
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iie_read_ram_zpage_and_stack;
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cpu65_vmem[i].w =
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iie_write_ram_zpage_and_stack;
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}
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}
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#endif
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#ifdef APPLE_IIE
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/* initialize first text & hires page, which are specially bank switched
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*
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* video_set() substitutes it's own hooks for all visible write locations
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* affect the display, leaving our write-functions in place only at the
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* `screen holes', hence the name.
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*/
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for (i = 0x400; i < 0x800; i++)
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{
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cpu65_vmem[i].r =
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iie_read_ram_text_page0;
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cpu65_vmem[i].w =
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iie_write_screen_hole_text_page0;
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}
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for (i = 0x2000; i < 0x4000; i++)
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{
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cpu65_vmem[i].r =
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iie_read_ram_hires_page0;
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cpu65_vmem[i].w =
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iie_write_screen_hole_hires_page0;
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}
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#endif
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/* softswich rom */
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for (i = 0xC000; i < 0xC100; i++)
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{
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cpu65_vmem[i].r =
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read_unmapped_softswitch;
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cpu65_vmem[i].w =
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write_unmapped_softswitch;
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}
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/* slot rom */
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for (i = 0xC100; i < 0xD000; i++)
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{
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cpu65_vmem[i].r =
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#ifdef APPLE_IIE
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iie_read_ram_default;
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#else
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read_ram_default;
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#endif
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cpu65_vmem[i].w =
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ram_nop;
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}
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/* keyboard data and strobe (READ) */
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for (i = 0xC000; i < 0xC010; i++)
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{
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cpu65_vmem[i].r =
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read_keyboard;
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}
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for (i = 0xC010; i < 0xC020; i++)
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{
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cpu65_vmem[i].r =
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cpu65_vmem[i].w =
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read_keyboard_strobe;
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}
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#ifdef APPLE_IIE
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if (apple_mode == IIE_MODE)
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{
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/* RDBNK2 switch */
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cpu65_vmem[0xC011].r =
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iie_check_bank;
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/* RDLCRAM switch */
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cpu65_vmem[0xC012].r =
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iie_check_lcram;
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/* 80STORE switch */
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cpu65_vmem[0xC000].w = iie_80store_off;
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cpu65_vmem[0xC001].w = iie_80store_on;
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cpu65_vmem[0xC018].r = iie_check_80store;
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/* RAMRD switch */
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cpu65_vmem[0xC002].w = iie_ramrd_main;
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cpu65_vmem[0xC003].w = iie_ramrd_aux;
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cpu65_vmem[0xC013].r = iie_check_ramrd;
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/* RAMWRT switch */
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cpu65_vmem[0xC004].w = iie_ramwrt_main;
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cpu65_vmem[0xC005].w = iie_ramwrt_aux;
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cpu65_vmem[0xC014].r = iie_check_ramwrt;
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/* ALTZP switch */
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cpu65_vmem[0xC008].w = iie_altzp_main;
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cpu65_vmem[0xC009].w = iie_altzp_aux;
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cpu65_vmem[0xC016].r = iie_check_altzp;
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/* 80COL switch */
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cpu65_vmem[0xC00C].w = iie_80col_off;
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cpu65_vmem[0xC00D].w = iie_80col_on;
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cpu65_vmem[0xC01F].r = iie_check_80col;
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/* ALTCHAR switch */
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cpu65_vmem[0xC00E].w = iie_altchar_off;
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cpu65_vmem[0xC00F].w = iie_altchar_on;
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cpu65_vmem[0xC01E].r = iie_check_altchar;
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/* SLOTC3ROM switch */
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cpu65_vmem[0xC00A].w = iie_c3rom_internal;
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cpu65_vmem[0xC00B].w = iie_c3rom_peripheral;
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cpu65_vmem[0xC017].r = iie_check_c3rom;
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/* SLOTCXROM switch */
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cpu65_vmem[0xC006].w = iie_cxrom_peripheral;
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cpu65_vmem[0xC007].w = iie_cxrom_internal;
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cpu65_vmem[0xC015].r = iie_check_cxrom;
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/* RDVBLBAR switch */
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cpu65_vmem[0xC019].r =
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iie_check_vbl;
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}
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#endif
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/* random number generator */
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for (i = 0xC020; i < 0xC030; i++)
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{
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cpu65_vmem[i].r =
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cpu65_vmem[i].w =
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read_random;
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}
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/* TEXT switch */
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cpu65_vmem[0xC050].r =
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cpu65_vmem[0xC050].w =
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read_switch_graphics;
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cpu65_vmem[0xC051].r =
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cpu65_vmem[0xC051].w =
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read_switch_text;
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#ifdef APPLE_IIE
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if (apple_mode == IIE_MODE)
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{
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cpu65_vmem[0xC01A].r =
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iie_check_text;
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}
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#endif
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/* MIXED switch */
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cpu65_vmem[0xC052].r =
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cpu65_vmem[0xC052].w =
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read_switch_no_mixed;
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cpu65_vmem[0xC053].r =
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cpu65_vmem[0xC053].w =
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read_switch_mixed;
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#ifdef APPLE_IIE
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if (apple_mode == IIE_MODE)
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{
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cpu65_vmem[0xC01B].r =
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iie_check_mixed;
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}
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/* PAGE2 switch */
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if (apple_mode == IIE_MODE)
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{
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cpu65_vmem[0xC054].r =
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cpu65_vmem[0xC054].w =
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iie_page2_off;
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}
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else
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#endif
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{
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cpu65_vmem[0xC054].r =
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cpu65_vmem[0xC054].w =
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read_switch_primary_page;
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}
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#ifdef APPLE_IIE
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if (apple_mode == IIE_MODE)
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{
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cpu65_vmem[0xC01C].r =
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iie_check_page2;
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}
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/* PAGE2 switch */
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if (apple_mode == IIE_MODE)
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{
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cpu65_vmem[0xC055].r =
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cpu65_vmem[0xC055].w =
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iie_page2_on;
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}
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else
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#endif
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{
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cpu65_vmem[0xC055].r =
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cpu65_vmem[0xC055].w =
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read_switch_secondary_page;
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}
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/* HIRES switch */
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#ifdef APPLE_IIE
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if (apple_mode == IIE_MODE)
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{
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cpu65_vmem[0xC01D].r =
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iie_check_hires;
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cpu65_vmem[0xC056].r =
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cpu65_vmem[0xC056].w =
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iie_hires_off;
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cpu65_vmem[0xC057].r =
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cpu65_vmem[0xC057].w =
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iie_hires_on;
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}
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else
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#endif
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{
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cpu65_vmem[0xC056].r =
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cpu65_vmem[0xC056].w =
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read_switch_lores;
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cpu65_vmem[0xC057].r =
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cpu65_vmem[0xC057].w =
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read_switch_hires;
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}
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/* game I/O switches */
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cpu65_vmem[0xC061].r =
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cpu65_vmem[0xC069].r =
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read_button0;
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cpu65_vmem[0xC062].r =
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cpu65_vmem[0xC06A].r =
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read_button1;
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cpu65_vmem[0xC063].r =
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cpu65_vmem[0xC06B].r =
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read_button2;
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cpu65_vmem[0xC064].r =
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cpu65_vmem[0xC06C].r =
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read_gc0;
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cpu65_vmem[0xC065].r =
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cpu65_vmem[0xC06D].r =
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read_gc1;
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#ifdef APPLE_IIE
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if (apple_mode == IIE_MODE)
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{
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cpu65_vmem[0xC066].r =
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iie_read_gc2;
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cpu65_vmem[0xC067].r =
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iie_read_gc3;
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}
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#endif
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for (i = 0xC070; i < 0xC080; i++)
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{
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cpu65_vmem[i].r =
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cpu65_vmem[i].w =
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read_gc_strobe;
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}
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#ifdef APPLE_IIE
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if (apple_mode == IIE_MODE)
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{
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/* IOUDIS switch & read_gc_strobe */
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cpu65_vmem[0xC07E].w =
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iie_ioudis_on;
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cpu65_vmem[0xC07F].w =
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iie_ioudis_off;
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cpu65_vmem[0xC07E].r =
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iie_check_ioudis;
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cpu65_vmem[0xC07F].r =
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iie_check_dhires;
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/* DHIRES/Annunciator switches */
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cpu65_vmem[0xC05E].w =
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cpu65_vmem[0xC05E].r =
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iie_dhires_on;
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cpu65_vmem[0xC05F].w =
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cpu65_vmem[0xC05F].r =
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iie_dhires_off;
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}
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#endif
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#ifdef APPLE_IIE
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/* language card softswitches */
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cpu65_vmem[0xC080].r = cpu65_vmem[0xC080].w =
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cpu65_vmem[0xC084].r = cpu65_vmem[0xC084].w =
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(apple_mode == IIE_MODE) ? iie_c080 : lc_c080;
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cpu65_vmem[0xC081].r = cpu65_vmem[0xC081].w =
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cpu65_vmem[0xC085].r = cpu65_vmem[0xC085].w =
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(apple_mode == IIE_MODE) ? iie_c081 : lc_c081;
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cpu65_vmem[0xC082].r = cpu65_vmem[0xC082].w =
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cpu65_vmem[0xC086].r = cpu65_vmem[0xC086].w =
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lc_c082;
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cpu65_vmem[0xC083].r = cpu65_vmem[0xC083].w =
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cpu65_vmem[0xC087].r = cpu65_vmem[0xC087].w =
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(apple_mode == IIE_MODE) ? iie_c083 : lc_c083;
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cpu65_vmem[0xC088].r = cpu65_vmem[0xC088].w =
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cpu65_vmem[0xC08C].r = cpu65_vmem[0xC08C].w =
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(apple_mode == IIE_MODE) ? iie_c088 : lc_c088;
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cpu65_vmem[0xC089].r = cpu65_vmem[0xC089].w =
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cpu65_vmem[0xC08D].r = cpu65_vmem[0xC08D].w =
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(apple_mode == IIE_MODE) ? iie_c089 : lc_c089;
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cpu65_vmem[0xC08A].r = cpu65_vmem[0xC08A].w =
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cpu65_vmem[0xC08E].r = cpu65_vmem[0xC08E].w =
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lc_c08a;
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cpu65_vmem[0xC08B].r = cpu65_vmem[0xC08B].w =
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cpu65_vmem[0xC08F].r = cpu65_vmem[0xC08F].w =
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(apple_mode == IIE_MODE) ? iie_c08b : lc_c08b;
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#else /* !APPLE_IIE */
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/* language card softswitches */
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cpu65_vmem[0xC080].r = cpu65_vmem[0xC080].w =
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cpu65_vmem[0xC084].r = cpu65_vmem[0xC084].w =
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lc_c080;
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cpu65_vmem[0xC081].r = cpu65_vmem[0xC081].w =
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cpu65_vmem[0xC085].r = cpu65_vmem[0xC085].w =
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lc_c081;
|
|
cpu65_vmem[0xC082].r = cpu65_vmem[0xC082].w =
|
|
cpu65_vmem[0xC086].r = cpu65_vmem[0xC086].w =
|
|
lc_c082;
|
|
cpu65_vmem[0xC083].r = cpu65_vmem[0xC083].w =
|
|
cpu65_vmem[0xC087].r = cpu65_vmem[0xC087].w =
|
|
lc_c083;
|
|
|
|
cpu65_vmem[0xC088].r = cpu65_vmem[0xC088].w =
|
|
cpu65_vmem[0xC08C].r = cpu65_vmem[0xC08C].w =
|
|
lc_c088;
|
|
cpu65_vmem[0xC089].r = cpu65_vmem[0xC089].w =
|
|
cpu65_vmem[0xC08D].r = cpu65_vmem[0xC08D].w =
|
|
lc_c089;
|
|
cpu65_vmem[0xC08A].r = cpu65_vmem[0xC08A].w =
|
|
cpu65_vmem[0xC08E].r = cpu65_vmem[0xC08E].w =
|
|
lc_c08a;
|
|
cpu65_vmem[0xC08B].r = cpu65_vmem[0xC08B].w =
|
|
cpu65_vmem[0xC08F].r = cpu65_vmem[0xC08F].w =
|
|
lc_c08b;
|
|
#endif /* !APPLE_IIE */
|
|
|
|
#ifdef APPLE_IIE
|
|
/* slot i/o area */
|
|
for (i = 0xC100; i < 0xC300; i++)
|
|
{
|
|
cpu65_vmem[i].r =
|
|
iie_read_slotx; /* slots 1 & 2 (x) */
|
|
}
|
|
|
|
for (i = 0xC300; i < 0xC400; i++)
|
|
{
|
|
cpu65_vmem[i].r =
|
|
iie_read_slot3; /* slot 3 (80col) */
|
|
}
|
|
|
|
for (i = 0xC400; i < 0xC800; i++)
|
|
{
|
|
cpu65_vmem[i].r =
|
|
iie_read_slotx; /* slots 4 - 7 (x) */
|
|
}
|
|
|
|
for (i = 0xC800; i < 0xD000; i++)
|
|
{
|
|
cpu65_vmem[i].r =
|
|
iie_read_slot_expansion; /* expansion rom */
|
|
}
|
|
|
|
cpu65_vmem[0xCFFF].r =
|
|
cpu65_vmem[0xCFFF].w =
|
|
iie_disable_slot_expansion;
|
|
#endif
|
|
|
|
video_set(0); /* must be done here, between pre_compact & compact */
|
|
|
|
disk_install(6); /* Put a Disk ][ Controller in slot 6 */
|
|
|
|
compact(); /* Compress memory so that identical pages share storage */
|
|
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------
|
|
c_initialize_apple_ii_memory()
|
|
------------------------------------------------------------------------- */
|
|
|
|
void c_initialize_apple_ii_memory()
|
|
{
|
|
FILE *f;
|
|
int i;
|
|
static int ii_rom_loaded = 0;
|
|
#ifdef APPLE_IIE
|
|
static int iie_rom_loaded = 0;
|
|
#endif
|
|
|
|
for (i = 0; i < 0x10000; i++)
|
|
{
|
|
apple_ii_64k[0][i] = 0;
|
|
apple_ii_64k[1][i] = 0;
|
|
}
|
|
|
|
for (i = 0; i < 8192; i++)
|
|
{
|
|
language_card[0][i] = language_card[1][i] = 0;
|
|
}
|
|
|
|
for (i = 0; i < 8192; i++)
|
|
{
|
|
language_banks[0][i] = language_banks[1][i] = 0;
|
|
}
|
|
|
|
if (!ii_rom_loaded)
|
|
{
|
|
snprintf(temp, TEMPSIZE, "%s/apple_II.rom", system_path);
|
|
if ((f = fopen(temp, "r")) == NULL)
|
|
{
|
|
printf("OOPS!\n");
|
|
printf("Cannot find file '%s'.\n",temp);
|
|
exit(0);
|
|
}
|
|
|
|
if (fread(apple_ii_rom, 0x3000, 1, f) != 0x3000)
|
|
{
|
|
// ERROR ...
|
|
}
|
|
|
|
fclose(f);
|
|
ii_rom_loaded = 1;
|
|
}
|
|
|
|
#ifdef APPLE_IIE
|
|
if (!iie_rom_loaded)
|
|
{
|
|
snprintf(temp, TEMPSIZE, "%s/apple_IIe.rom", system_path);
|
|
if ((f = fopen(temp, "r")) == NULL)
|
|
{
|
|
printf("Cannot find file '%s'.\n",temp);
|
|
exit(0);
|
|
}
|
|
|
|
if (fread(apple_iie_rom, 32768, 1, f) != 32768)
|
|
{
|
|
// ERROR ...
|
|
}
|
|
|
|
fclose(f);
|
|
iie_rom_loaded = 1;
|
|
}
|
|
|
|
#endif
|
|
|
|
for (i = 0xD000; i < 0x10000; i++)
|
|
{
|
|
apple_ii_64k[0][i] = apple_ii_rom[i - 0xD000];
|
|
}
|
|
|
|
for (i = 0; i < 0x1000; i++)
|
|
{
|
|
language_banks[0][i] = apple_ii_rom[i];
|
|
}
|
|
|
|
for (i = 0; i < 0x2000; i++)
|
|
{
|
|
language_card[0][i] = apple_ii_rom[i + 0x1000];
|
|
}
|
|
|
|
#ifdef APPLE_IIE
|
|
if (apple_mode == IIE_MODE)
|
|
{
|
|
/* load the rom from 0xC000, slot rom main, internal rom aux */
|
|
for (i = 0xC000; i < 0x10000; i++)
|
|
{
|
|
apple_ii_64k[0][i] = apple_iie_rom[i - 0xC000];
|
|
apple_ii_64k[1][i] = apple_iie_rom[i - 0x8000];
|
|
}
|
|
|
|
for (i = 0; i < 0x1000; i++)
|
|
{
|
|
language_banks[0][i] = apple_iie_rom[i + 0x1000];
|
|
language_banks[1][i] = apple_iie_rom[i + 0x5000];
|
|
}
|
|
|
|
for (i = 0; i < 0x2000; i++)
|
|
{
|
|
language_card[0][i] = apple_iie_rom[i + 0x2000];
|
|
language_card[1][i] = apple_iie_rom[i + 0x6000];
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
/* softswitch memory HACK - why this? */
|
|
{
|
|
for (i = 0xC100; i < 0xD000; i++)
|
|
{
|
|
apple_ii_64k[0][i] = i & 0xFF;
|
|
apple_ii_64k[1][i] = i & 0xFF;
|
|
}
|
|
}
|
|
|
|
apple_ii_64k[0][0xC000] = 0x00;
|
|
apple_ii_64k[1][0xC000] = 0x00;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------
|
|
void c_initialize_sound()
|
|
------------------------------------------------------------------------- */
|
|
|
|
void c_initialize_sound()
|
|
{
|
|
int i;
|
|
|
|
for (i = 0xC030; i < 0xC040; i++)
|
|
{
|
|
cpu65_vmem[i].r = cpu65_vmem[i].w =
|
|
(sound_mode && soundAllowed) ? read_speaker_toggle_pc : ram_nop;
|
|
}
|
|
}
|
|
|
|
#ifdef APPLE_IIE
|
|
/* -------------------------------------------------------------------------
|
|
c_initialize_iie_switches
|
|
------------------------------------------------------------------------- */
|
|
void c_initialize_iie_switches() {
|
|
|
|
base_stackzp = apple_ii_64k[0];
|
|
base_d000_rd = apple_ii_64k[0];
|
|
base_d000_wrt = language_banks[0] - 0xD000;
|
|
base_e000_rd = apple_ii_64k[0];
|
|
base_e000_wrt = language_card[0] - 0xE000;
|
|
|
|
base_ramrd = apple_ii_64k[0];
|
|
base_ramwrt = apple_ii_64k[0];
|
|
base_textrd = apple_ii_64k[0];
|
|
base_textwrt = apple_ii_64k[0];
|
|
base_hgrrd = apple_ii_64k[0];
|
|
base_hgrwrt= apple_ii_64k[0];
|
|
|
|
base_c3rom = apple_ii_64k[1]; /* c3rom internal */
|
|
c8rom_offset = 0x10000; /* c8rom internal */
|
|
base_cxrom = apple_ii_64k[0]; /* cxrom peripheral */
|
|
}
|
|
#endif
|
|
|
|
/* -------------------------------------------------------------------------
|
|
void c_initialize_vm()
|
|
------------------------------------------------------------------------- */
|
|
void c_initialize_vm() {
|
|
c_initialize_font(); /* font already read in */
|
|
c_initialize_apple_ii_memory(); /* read in rom memory */
|
|
c_initialize_tables(); /* read/write memory jump tables */
|
|
c_initialize_sound(); /* sound system */
|
|
c_init_6(); /* drive ][, slot 6 */
|
|
|
|
#ifdef APPLE_IIE
|
|
c_initialize_iie_switches(); /* set the //e softswitches */
|
|
#endif
|
|
|
|
#ifdef MOUSE_EMULATION
|
|
c_initialize_mouse();
|
|
#endif
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------
|
|
void c_initialize_firsttime()
|
|
------------------------------------------------------------------------- */
|
|
|
|
static void reinitialize(void)
|
|
{
|
|
int i;
|
|
|
|
/* reset the watchpoints and breakpoints */
|
|
for (i=0; i<MAX_BRKPTS; i++)
|
|
{
|
|
breakpoints[i] = -1;
|
|
watchpoints[i] = -1;
|
|
}
|
|
|
|
for (i=0; i<0x100; i++)
|
|
{
|
|
op_breakpoints[(unsigned char)i] = 0;
|
|
}
|
|
|
|
c_initialize_vm();
|
|
|
|
softswitches = SS_TEXT | SS_IOUDIS | SS_C3ROM | SS_LCWRT | SS_LCSEC;
|
|
|
|
video_setpage( 0 );
|
|
|
|
video_redraw();
|
|
|
|
#ifdef APPLE_IIE
|
|
if (apple_mode == IIE_MODE)
|
|
{
|
|
cpu65_set(CPU65_C02);
|
|
}
|
|
else
|
|
#endif
|
|
if (apple_mode == IIU_MODE)
|
|
{
|
|
cpu65_set(CPU65_NMOS);
|
|
}
|
|
else
|
|
{
|
|
cpu65_set(CPU65_NMOS|CPU65_FAULT);
|
|
}
|
|
|
|
}
|
|
|
|
static void c_initialize_firsttime()
|
|
{
|
|
/* get IO permission for speaker port. */
|
|
if (/*ioperm(0x42, 1, 1) ||*/ ioperm(0x61, 1, 1))
|
|
{
|
|
perror("ioperm");
|
|
printf("cannot get port access to PC speaker.\n");
|
|
printf("sound will not be used.\n");
|
|
soundAllowed=0;
|
|
}
|
|
else
|
|
{
|
|
soundAllowed=1;
|
|
}
|
|
|
|
/* read in system files and calculate system defaults */
|
|
c_load_interface_font();
|
|
|
|
/* initialize the video system */
|
|
video_init();
|
|
|
|
reinitialize();
|
|
}
|
|
|
|
void c_read_random() {
|
|
random_value = (unsigned char)(rand() >> 8);
|
|
}
|
|
|
|
static void cpu_thread(void *dummyptr) {
|
|
|
|
do
|
|
{
|
|
cpu65_run();
|
|
reinitialize();
|
|
} while (1);
|
|
}
|
|
|
|
static void main_thread(void *dummyptr) {
|
|
do
|
|
{
|
|
// sleep waiting for the cpu thread to ping us that it's sleeping...
|
|
pthread_mutex_lock(&mutex);
|
|
pthread_cond_wait(&cond, &mutex);
|
|
pthread_mutex_unlock(&mutex);
|
|
|
|
c_periodic_update(0);
|
|
} while (1);
|
|
}
|
|
|
|
int main(int sargc, char *sargv[])
|
|
{
|
|
argc = sargc;
|
|
argv = sargv;
|
|
|
|
load_settings(); /* user prefs */
|
|
c_initialize_firsttime(); /* init svga graphics and vm */
|
|
timing_initialize();
|
|
|
|
// spin off cpu thread
|
|
pthread_t thread1;
|
|
pthread_create(&thread1, NULL, (void *) &cpu_thread, (void *)NULL);
|
|
|
|
// enter main render thread
|
|
main_thread(NULL);
|
|
}
|