mirror of
https://github.com/mauiaaron/apple2.git
synced 2024-11-17 13:10:38 +00:00
6858e51a75
* Based on NSOpenGLView and Apple's GLEssentials sample code
* CVDisplayLink- or NSTimer-driven rendering
* Works in window or fullscreen mode on Mac OSX Lion or later
TODO FIXME:
* Breaks Linux/Posix build
* Cocoa menu interfaces
* Key/mouse/joystick/gamepad handling
645 lines
17 KiB
C
645 lines
17 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 "common.h"
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/* ----------------------------------
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internal apple2 variables
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---------------------------------- */
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extern uint8_t apple_iie_rom[32768];
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extern bool iie_rom_loaded;
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bool do_logging = true; // also controlled by NDEBUG
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FILE *error_log = NULL;
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__attribute__((constructor))
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static void _init_common() {
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error_log = stderr;
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}
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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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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_MAYBEREAD(iie_read_slot4,base_c4rom)
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GLUE_BANK_MAYBEREAD(iie_read_slot5,base_c5rom)
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GLUE_BANK_READ(iie_read_slotx,base_cxrom)
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uint32_t softswitches;
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const uint8_t *base_vmem = apple_ii_64k[0];
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uint8_t *base_ramrd;
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uint8_t *base_ramwrt;
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uint8_t *base_textrd;
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uint8_t *base_textwrt;
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uint8_t *base_hgrrd;
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uint8_t *base_hgrwrt;
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uint8_t *base_stackzp;
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uint8_t *base_d000_rd;
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uint8_t *base_e000_rd;
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uint8_t *base_d000_wrt;
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uint8_t *base_e000_wrt;
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uint8_t *base_c3rom;
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uint8_t *base_c4rom;
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uint8_t *base_c5rom;
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uint8_t *base_cxrom;
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/* -------------------------------------------------------------------------
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c_debug_illegal_bcd - illegal BCD (decimal mode) computation
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------------------------------------------------------------------------- */
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GLUE_C_READ(debug_illegal_bcd)
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{
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RELEASE_LOG("Illegal/undefined BCD operation encountered, debug break on c_debug_illegal_bcd to debug...");
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return 0;
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}
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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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/* -------------------------------------------------------------------------
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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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/* reset everything */
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for (i = 0; i < 0x10000; i++)
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{
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cpu65_vmem_r[i] = iie_read_ram_default;
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cpu65_vmem_w[i] = iie_write_ram_default;
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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_w[i] =
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write_ram_bank;
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cpu65_vmem_r[i] =
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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_w[i] =
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write_ram_lc;
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cpu65_vmem_r[i] =
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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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/* initialize zero-page, //e specific */
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for (i = 0; i < 0x200; i++)
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{
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cpu65_vmem_r[i] =
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iie_read_ram_zpage_and_stack;
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cpu65_vmem_w[i] =
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iie_write_ram_zpage_and_stack;
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}
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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_r[i] =
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iie_read_ram_text_page0;
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cpu65_vmem_w[i] =
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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_r[i] =
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iie_read_ram_hires_page0;
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cpu65_vmem_w[i] =
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iie_write_screen_hole_hires_page0;
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}
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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_r[i] =
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read_unmapped_softswitch;
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cpu65_vmem_w[i] =
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write_unmapped_softswitch;
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}
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/* slot rom defaults */
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for (i = 0xC100; i < 0xD000; i++)
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{
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cpu65_vmem_r[i] =
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iie_read_ram_default;
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cpu65_vmem_w[i] =
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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_r[i] =
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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_r[i] =
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cpu65_vmem_w[i] =
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read_keyboard_strobe;
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}
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/* RDBNK2 switch */
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cpu65_vmem_r[0xC011] =
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iie_check_bank;
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/* RDLCRAM switch */
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cpu65_vmem_r[0xC012] =
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iie_check_lcram;
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/* 80STORE switch */
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cpu65_vmem_w[0xC000] = iie_80store_off;
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cpu65_vmem_w[0xC001] = iie_80store_on;
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cpu65_vmem_r[0xC018] = iie_check_80store;
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/* RAMRD switch */
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cpu65_vmem_w[0xC002] = iie_ramrd_main;
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cpu65_vmem_w[0xC003] = iie_ramrd_aux;
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cpu65_vmem_r[0xC013] = iie_check_ramrd;
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/* RAMWRT switch */
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cpu65_vmem_w[0xC004] = iie_ramwrt_main;
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cpu65_vmem_w[0xC005] = iie_ramwrt_aux;
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cpu65_vmem_r[0xC014] = iie_check_ramwrt;
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/* ALTZP switch */
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cpu65_vmem_w[0xC008] = iie_altzp_main;
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cpu65_vmem_w[0xC009] = iie_altzp_aux;
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cpu65_vmem_r[0xC016] = iie_check_altzp;
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/* 80COL switch */
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cpu65_vmem_w[0xC00C] = iie_80col_off;
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cpu65_vmem_w[0xC00D] = iie_80col_on;
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cpu65_vmem_r[0xC01F] = iie_check_80col;
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/* ALTCHAR switch */
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cpu65_vmem_w[0xC00E] = iie_altchar_off;
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cpu65_vmem_w[0xC00F] = iie_altchar_on;
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cpu65_vmem_r[0xC01E] = iie_check_altchar;
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/* SLOTC3ROM switch */
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cpu65_vmem_w[0xC00A] = iie_c3rom_internal; // HACK FIXME TODO VERIFY : the pattern here is reversed from cxrom?
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cpu65_vmem_w[0xC00B] = iie_c3rom_peripheral;
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cpu65_vmem_r[0xC017] = iie_check_c3rom;
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/* SLOTCXROM switch */
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cpu65_vmem_w[0xC006] = iie_cxrom_peripheral; // HACK FIXME TODO VERIFY : the pattern here is reversed from c3rom?
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cpu65_vmem_w[0xC007] = iie_cxrom_internal;
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cpu65_vmem_r[0xC015] = iie_check_cxrom;
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/* RDVBLBAR switch */
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cpu65_vmem_r[0xC019] =
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iie_check_vbl;
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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_r[i] =
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cpu65_vmem_w[i] =
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read_random;
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}
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/* TEXT switch */
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cpu65_vmem_r[0xC050] =
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cpu65_vmem_w[0xC050] =
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read_switch_graphics;
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cpu65_vmem_r[0xC051] =
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cpu65_vmem_w[0xC051] =
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read_switch_text;
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cpu65_vmem_r[0xC01A] =
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iie_check_text;
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/* MIXED switch */
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cpu65_vmem_r[0xC052] =
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cpu65_vmem_w[0xC052] =
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read_switch_no_mixed;
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cpu65_vmem_r[0xC053] =
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cpu65_vmem_w[0xC053] =
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read_switch_mixed;
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cpu65_vmem_r[0xC01B] =
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iie_check_mixed;
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/* PAGE2 switch */
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cpu65_vmem_r[0xC054] =
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cpu65_vmem_w[0xC054] =
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iie_page2_off;
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cpu65_vmem_r[0xC01C] =
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iie_check_page2;
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/* PAGE2 switch */
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cpu65_vmem_r[0xC055] =
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cpu65_vmem_w[0xC055] =
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iie_page2_on;
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/* HIRES switch */
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cpu65_vmem_r[0xC01D] =
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iie_check_hires;
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cpu65_vmem_r[0xC056] =
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cpu65_vmem_w[0xC056] =
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iie_hires_off;
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cpu65_vmem_r[0xC057] =
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cpu65_vmem_w[0xC057] =
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iie_hires_on;
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/* game I/O switches */
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cpu65_vmem_r[0xC061] =
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cpu65_vmem_r[0xC069] =
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read_button0;
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cpu65_vmem_r[0xC062] =
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cpu65_vmem_r[0xC06A] =
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read_button1;
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cpu65_vmem_r[0xC063] =
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cpu65_vmem_r[0xC06B] =
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read_button2;
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cpu65_vmem_r[0xC064] =
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cpu65_vmem_r[0xC06C] =
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read_gc0;
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cpu65_vmem_r[0xC065] =
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cpu65_vmem_r[0xC06D] =
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read_gc1;
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cpu65_vmem_r[0xC066] =
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iie_read_gc2;
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cpu65_vmem_r[0xC067] =
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iie_read_gc3;
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for (i = 0xC070; i < 0xC080; i++)
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{
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cpu65_vmem_r[i] =
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cpu65_vmem_w[i] =
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read_gc_strobe;
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}
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/* IOUDIS switch & read_gc_strobe */
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cpu65_vmem_w[0xC07E] =
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iie_ioudis_on;
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cpu65_vmem_w[0xC07F] =
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iie_ioudis_off; // HACK FIXME TODO : double-check this stuff against AWin...
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cpu65_vmem_r[0xC07E] =
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iie_check_ioudis;
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cpu65_vmem_r[0xC07F] =
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iie_check_dhires;
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/* DHIRES/Annunciator switches */
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cpu65_vmem_w[0xC05E] =
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cpu65_vmem_r[0xC05E] =
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iie_dhires_on;
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cpu65_vmem_w[0xC05F] =
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cpu65_vmem_r[0xC05F] =
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iie_dhires_off;
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/* language card softswitches */
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cpu65_vmem_r[0xC080] = cpu65_vmem_w[0xC080] =
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cpu65_vmem_r[0xC084] = cpu65_vmem_w[0xC084] = iie_c080;
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cpu65_vmem_r[0xC081] = cpu65_vmem_w[0xC081] =
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cpu65_vmem_r[0xC085] = cpu65_vmem_w[0xC085] = iie_c081;
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cpu65_vmem_r[0xC082] = cpu65_vmem_w[0xC082] =
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cpu65_vmem_r[0xC086] = cpu65_vmem_w[0xC086] = lc_c082;
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cpu65_vmem_r[0xC083] = cpu65_vmem_w[0xC083] =
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cpu65_vmem_r[0xC087] = cpu65_vmem_w[0xC087] = iie_c083;
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cpu65_vmem_r[0xC088] = cpu65_vmem_w[0xC088] =
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cpu65_vmem_r[0xC08C] = cpu65_vmem_w[0xC08C] = iie_c088;
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cpu65_vmem_r[0xC089] = cpu65_vmem_w[0xC089] =
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cpu65_vmem_r[0xC08D] = cpu65_vmem_w[0xC08D] = iie_c089;
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cpu65_vmem_r[0xC08A] = cpu65_vmem_w[0xC08A] =
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cpu65_vmem_r[0xC08E] = cpu65_vmem_w[0xC08E] = lc_c08a;
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cpu65_vmem_r[0xC08B] = cpu65_vmem_w[0xC08B] =
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cpu65_vmem_r[0xC08F] = cpu65_vmem_w[0xC08F] = iie_c08b;
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/* slot i/o area */
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for (i = 0xC100; i < 0xC300; i++)
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{
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cpu65_vmem_r[i] =
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iie_read_slotx; /* slots 1 & 2 (x) */
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}
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for (i = 0xC300; i < 0xC400; i++)
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{
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cpu65_vmem_r[i] =
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iie_read_slot3; /* slot 3 (80col) */
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}
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for (i = 0xC400; i < 0xC500; i++)
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{
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cpu65_vmem_r[i] =
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iie_read_slot4; /* slot 4 - MB or Phasor */
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}
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for (i = 0xC500; i < 0xC600; i++)
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{
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cpu65_vmem_r[i] =
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iie_read_slot5; /* slot 5 - MB #2 */
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}
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for (i = 0xC600; i < 0xC800; i++)
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{
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cpu65_vmem_r[i] =
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iie_read_slotx; /* slots 6 - 7 (x) */
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}
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for (i = 0xC800; i < 0xD000; i++)
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{
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cpu65_vmem_r[i] =
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iie_read_slot_expansion; /* expansion rom */
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}
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cpu65_vmem_r[0xCFFF] =
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cpu65_vmem_w[0xCFFF] =
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iie_disable_slot_expansion;
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video_set(0);
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// Peripheral card slot initializations ...
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// HACK TODO FIXME : this needs to be tied to the UI/configuration system (once we have more/conflicting options)
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#ifdef AUDIO_ENABLED
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mb_io_initialize(4, 5); /* Mockingboard(s) and/or Phasor in slots 4 & 5 */
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#endif
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disk_io_initialize(6); /* Put a Disk ][ Controller in slot 6 */
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}
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/* -------------------------------------------------------------------------
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c_initialize_apple_ii_memory()
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------------------------------------------------------------------------- */
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void c_initialize_apple_ii_memory()
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{
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FILE *f;
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int i;
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for (i = 0; i < 0x10000; i++)
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{
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apple_ii_64k[0][i] = 0;
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apple_ii_64k[1][i] = 0;
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}
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for (i = 0; i < 8192; i++)
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{
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language_card[0][i] = language_card[1][i] = 0;
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}
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for (i = 0; i < 8192; i++)
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{
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language_banks[0][i] = language_banks[1][i] = 0;
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}
|
|
|
|
if (!iie_rom_loaded)
|
|
{
|
|
char temp[PATH_MAX];
|
|
snprintf(temp, PATH_MAX, "%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;
|
|
}
|
|
|
|
/* 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];
|
|
}
|
|
|
|
apple_ii_64k[0][0xC000] = 0x00;
|
|
apple_ii_64k[1][0xC000] = 0x00;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------
|
|
void c_initialize_sound_hooks()
|
|
------------------------------------------------------------------------- */
|
|
|
|
void c_initialize_sound_hooks()
|
|
{
|
|
#ifdef AUDIO_ENABLED
|
|
SpkrSetVolume(sound_volume * (SPKR_DATA_INIT/10));
|
|
#endif
|
|
for (int i = 0xC030; i < 0xC040; i++)
|
|
{
|
|
cpu65_vmem_r[i] = cpu65_vmem_w[i] =
|
|
#ifdef AUDIO_ENABLED
|
|
(sound_volume > 0) ? speaker_toggle :
|
|
#endif
|
|
ram_nop;
|
|
}
|
|
}
|
|
|
|
void c_disable_sound_hooks()
|
|
{
|
|
for (int i = 0xC030; i < 0xC040; i++)
|
|
{
|
|
cpu65_vmem_r[i] = ram_nop;
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------
|
|
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 */
|
|
base_c4rom = apple_ii_64k[1]; /* c4rom internal */
|
|
base_c5rom = apple_ii_64k[1]; /* c5rom internal */
|
|
base_cxrom = apple_ii_64k[0]; /* cxrom peripheral */
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------
|
|
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_hooks(); /* sound system */
|
|
c_init_6(); /* drive ][, slot 6 */
|
|
c_initialize_iie_switches(); /* set the //e softswitches */
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------
|
|
void c_initialize_firsttime()
|
|
------------------------------------------------------------------------- */
|
|
|
|
void reinitialize(void)
|
|
{
|
|
c_initialize_vm();
|
|
|
|
softswitches = SS_TEXT | SS_IOUDIS | SS_C3ROM | SS_LCWRT | SS_LCSEC;
|
|
|
|
video_setpage( 0 );
|
|
|
|
video_redraw();
|
|
|
|
cpu65_init();
|
|
|
|
timing_initialize();
|
|
|
|
#ifdef AUDIO_ENABLED
|
|
MB_Reset();
|
|
#endif
|
|
}
|
|
|
|
void c_initialize_firsttime()
|
|
{
|
|
#ifdef INTERFACE_CLASSIC
|
|
/* read in system files and calculate system defaults */
|
|
c_load_interface_font();
|
|
#endif
|
|
|
|
/* initialize the video system */
|
|
video_init();
|
|
|
|
// TODO FIXME : sound system never released ...
|
|
#ifdef AUDIO_ENABLED
|
|
DSInit();
|
|
SpkrInitialize();
|
|
MB_Initialize();
|
|
#endif
|
|
|
|
#ifdef DEBUGGER
|
|
c_debugger_init();
|
|
#endif
|
|
|
|
reinitialize();
|
|
}
|
|
|
|
#if !defined(TESTING) && !defined(__APPLE__)
|
|
extern void *cpu_thread(void *dummyptr);
|
|
|
|
int main(int _argc, char **_argv) {
|
|
argc = _argc;
|
|
argv = _argv;
|
|
|
|
load_settings(); /* user prefs */
|
|
c_initialize_firsttime(); /* init svga graphics and vm */
|
|
|
|
// spin off cpu thread
|
|
pthread_create(&cpu_thread_id, NULL, (void *)&cpu_thread, (void *)NULL);
|
|
|
|
c_keys_set_key(kF8); // show credits
|
|
|
|
video_main_loop();
|
|
}
|
|
#endif // TESTING
|
|
|