Apple-2-Tools/reinette-II-plus
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2
Makefile
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@ -1,5 +1,5 @@
CC = gcc CC = gcc
FLAGS = -std=c99 -pedantic -Wpedantic -Wall -O3 FLAGS = -std=c11 -pedantic -Wpedantic -Wall -O3
LIBS = -lSDL2 LIBS = -lSDL2
# comment these two lines if you are under Linux : # comment these two lines if you are under Linux :

6
README.md
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@ -24,7 +24,7 @@ After [reinette](https://github.com/ArthurFerreira2/reinette) (Apple 1 emulator)
* easy screenshot * easy screenshot
It uses the same MOS 6502 CPU emulator as her sisters (now christened [puce6502](https://github.com/ArthurFerreira2/puce6502)).\ It uses an optimized and accurate MOS 6502 CPU emulator (now christened [puce6502](https://github.com/ArthurFerreira2/puce6502)).\
You only need SDL2 to compile it. (I'm not using SDL_Mixer, but only the native SDL2 audio functions) You only need SDL2 to compile it. (I'm not using SDL_Mixer, but only the native SDL2 audio functions)
This emulator is not accurate in many ways and does not compete with This emulator is not accurate in many ways and does not compete with
@ -66,9 +66,7 @@ Use the functions keys to control the emulator itself :
* F7 : reset the zoom to 2:1 * F7 : reset the zoom to 2:1
* shift F7 : increase zoom up to 8:1 max * shift F7 : increase zoom up to 8:1 max
* ctrl F7 : decrease zoom down to 1:1 pixels * ctrl F7 : decrease zoom down to 1:1 pixels
* F8 : monochrome / color display (only in HGR mode) * F10 : pause / un-pause the emulator
* F9 : pause / un-pause the emulator
* F10 : break
* F11 : reset * F11 : reset
* F12 : about, help * F12 : about, help

2522
puce6502.c
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File diff suppressed because it is too large Load Diff

33
puce6502.h
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@ -1,10 +1,9 @@
/* /*
Puce6502 - MOS 6502 cpu emulator Puce6502 - MOS 6502 cpu emulator
Last modified 1st of August 2020 Last modified 1st of August 2020
Copyright (c) 2018 Arthur Ferreira (arthur.ferreira2@gmail.com) Copyright (c) 2018 Arthur Ferreira (arthur.ferreira2@gmail.com)
This version has been modified for reinette II plus, a french Apple II plus This version has been modified for Reinette II plus, a french Apple II plus
emulator using SDL2 (https://github.com/ArthurFerreira2/reinette-II-plus). emulator using SDL2 (https://github.com/ArthurFerreira2/reinette-II-plus).
Please download the latest version from Please download the latest version from
@ -27,9 +26,9 @@
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 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 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE. THE SOFTWARE.
*/ */
#ifndef _PUCE6502_H #ifndef _PUCE6502_H
#define _PUCE6502_H #define _PUCE6502_H
@ -37,26 +36,16 @@ typedef unsigned char uint8_t;
typedef unsigned short uint16_t; typedef unsigned short uint16_t;
typedef enum { false, true } bool; typedef enum { false, true } bool;
#define RAMSIZE 0xC000 extern unsigned long long int ticks;
#define ROMSTART 0xD000
#define ROMSIZE 0x3000
#define LGCSTART 0xD000
#define LGCSIZE 0x3000
#define BK2START 0xD000
#define BK2SIZE 0x1000
#define SL6START 0xC600
#define SL6SIZE 0x0100
uint8_t ram[RAMSIZE]; // 48K of ram in $000-$BFFF uint16_t puce6502Exec(unsigned long long int cycleCount);
uint8_t rom[ROMSIZE]; // 12K of rom in $D000-$FFFF void puce6502RST();
uint8_t lgc[LGCSIZE]; // Language Card 12K in $D000-$FFFF void puce6502IRQ();
uint8_t bk2[BK2SIZE]; // bank 2 of Language Card 4K in $D000-$DFFF void puce6502NMI();
uint8_t sl6[SL6SIZE]; // P5A disk ][ PROM in slot 6
long long int ticks; // void printRegs();
// void dasm(uint16_t address);
void puce6502Exec(long long int cycleCount); // void setPC(uint16_t address);
void puce6502Reset(); // uint16_t getPC();
void puce6502Break();
#endif #endif

560
reinetteII+.c
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@ -1,53 +1,77 @@
/* /*
reinette II plus, a french Apple II emulator, using SDL2 * Reinette II plus, a french Apple II emulator, using SDL2
and powered by puce6502 - a MOS 6502 cpu emulator by the same author * and powered by puce6502 - a MOS 6502 cpu emulator by the same author
Last modified 5th of September 2020 * Last modified 21st of June 2021
Copyright (c) 2020 Arthur Ferreira (arthur.ferreira2@gmail.com) * Copyright (c) 2020 Arthur Ferreira (arthur.ferreira2@gmail.com)
*
Permission is hereby granted, free of charge, to any person obtaining a copy * Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal * of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights * in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is * copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions: * furnished to do so, subject to the following conditions:
*
The above copyright notice and this permission notice shall be included in * The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software. * all copies or substantial portions of the Software.
*
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * 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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE. * THE SOFTWARE.
*/ */
#include <stdio.h> #include <stdio.h>
#include <string.h> #include <string.h>
#include <SDL2/SDL.h> #include <SDL2/SDL.h>
#include "puce6502.h" #include "puce6502.h"
// memory layout
#define RAMSIZE 0xC000
#define ROMSTART 0xD000
#define ROMSIZE 0x3000
uint8_t ram[RAMSIZE]; // 48K of ram in $000-$BFFF
uint8_t rom[ROMSIZE]; // 12K of rom in $D000-$FFFF
// language card
#define LGCSTART 0xD000
#define LGCSIZE 0x3000
#define BK2START 0xD000
#define BK2SIZE 0x1000
uint8_t lgc[LGCSIZE]; // Language Card 12K in $D000-$FFFF
uint8_t bk2[BK2SIZE]; // bank 2 of Language Card 4K in $D000-$DFFF
// disk ][ prom
#define SL6START 0xC600
#define SL6SIZE 0x0100
uint8_t sl6[SL6SIZE]; // P5A disk ][ prom in slot 6
//================================================================ SOFT SWITCHES //================================================================ SOFT SWITCHES
uint8_t KBD = 0; // $C000, $C010 ascii value of keyboard input uint8_t KBD = 0; // $C000, $C010 ascii value of keyboard input
bool TEXT = true; // $C050 CLRTEXT / $C051 SETTEXT bool TEXT = true; // $C050 CLRTEXT / $C051 SETTEXT
bool MIXED = false; // $C052 CLRMIXED / $C053 SETMIXED bool MIXED = false; // $C052 CLRMIXED / $C053 SETMIXED
uint8_t PAGE = 1; // $C054 PAGE1 / $C055 PAGE2 bool PAGE2 = false; // $C054 PAGE2 off / $C055 PAGE2 on
bool HIRES = false; // $C056 GR / $C057 HGR bool HIRES = false; // $C056 GR / $C057 HGR
bool LCWR = true; // Language Card writable bool LCWR = true; // Language Card writable
bool LCRD = false; // Language Card readable bool LCRD = false; // Language Card readable
bool LCBK2 = true; // Language Card bank 2 enabled bool LCBK2 = true; // Language Card bank 2 enabled
bool LCWFF = false; // Language Card pre-write flip flop bool LCWFF = false; // Language Card pre-write flip flop
//====================================================================== PADDLES //====================================================================== PADDLES
uint8_t PB0 = 0; // $C061 Push Button 0 (bit 7) / Open Apple uint8_t PB0 = 0; // $C061 Push Button 0 (bit 7) / Open Apple
uint8_t PB1 = 0; // $C062 Push Button 1 (bit 7) / Solid Apple uint8_t PB1 = 0; // $C062 Push Button 1 (bit 7) / Solid Apple
uint8_t PB2 = 0; // $C063 Push Button 2 (bit 7) / shift mod !!! uint8_t PB2 = 0; // $C063 Push Button 2 (bit 7) / shift mod !!!
float GCP[2] = {127, 127}; // GC Position ranging from 0 (left) to 255 right float GCP[2] = { 127.0f, 127.0f }; // GC Position ranging from 0 (left) to 255 right
float GCC[2] = {0}; // $C064 (GC0) and $C065 (GC1) Countdowns float GCC[2] = { 0.0f }; // $C064 (GC0) and $C065 (GC1) Countdowns
int GCD[2] = { 0 }; // GC0 and GC1 Directions (left/down or right/up) int GCD[2] = { 0 }; // GC0 and GC1 Directions (left/down or right/up)
int GCA[2] = { 0 }; // GC0 and GC1 Action (push or release) int GCA[2] = { 0 }; // GC0 and GC1 Action (push or release)
uint8_t GCActionSpeed = 8; // Game Controller speed at which it goes to the edges uint8_t GCActionSpeed = 8; // Game Controller speed at which it goes to the edges
@ -62,18 +86,20 @@ inline static void resetPaddles(){
inline static uint8_t readPaddle(int pdl) { inline static uint8_t readPaddle(int pdl) {
const float GCFreq = 6.6; // the speed at which the GC values decrease const float GCFreq = 6.6; // the speed at which the GC values decrease
GCC[pdl] -= (ticks - GCCrigger) / GCFreq; // decreases the countdown GCC[pdl] -= (ticks - GCCrigger) / GCFreq; // decreases the countdown
if (GCC[pdl] <= 0) // timeout if (GCC[pdl] <= 0) // timeout
return(GCC[pdl] = 0); // returns 0 return GCC[pdl] = 0; // returns 0
return(0x80); // not timeout, return something with the MSB set return 0x80; // not timeout, return something with the MSB set
} }
//======================================================================== AUDIO
//====================================================================== SPEAKER
#define audioBufferSize 4096 // found to be large enought #define audioBufferSize 4096 // found to be large enought
Sint8 audioBuffer[2][audioBufferSize] = {0}; // see main() for more details Sint8 audioBuffer[2][audioBufferSize] = { 0 }; // see in main() for more details
SDL_AudioDeviceID audioDevice; SDL_AudioDeviceID audioDevice;
bool muted = false; // mute/unmute bool muted = false; // mute/unmute switch
static void playSound() { static void playSound() {
static long long int lastTick = 0LL; static long long int lastTick = 0LL;
@ -81,13 +107,14 @@ static void playSound(){
if (!muted) { if (!muted) {
SPKR = !SPKR; // toggle speaker state SPKR = !SPKR; // toggle speaker state
Uint32 length = (ticks - lastTick) / 10.65625; // 1023000Hz / 96000Hz = 10.65625 Uint32 length = (int)((double)(ticks - lastTick) / 10.65625f); // 1023000Hz / 96000Hz = 10.65625
lastTick = ticks; lastTick = ticks;
if (length > audioBufferSize) length = audioBufferSize; if (length > audioBufferSize) length = audioBufferSize;
SDL_QueueAudio(audioDevice, audioBuffer[SPKR], length | 1); // | 1 TO HEAR HIGH FREQ SOUNDS SDL_QueueAudio(audioDevice, audioBuffer[SPKR], length | 1); // | 1 TO HEAR HIGH FREQ SOUNDS
} }
} }
//====================================================================== DISK ][ //====================================================================== DISK ][
int curDrv = 0; // Current Drive - only one can be enabled at a time int curDrv = 0; // Current Drive - only one can be enabled at a time
@ -104,22 +131,24 @@ struct drive{
int insertFloppy(SDL_Window *wdo, char *filename, int drv) { int insertFloppy(SDL_Window *wdo, char *filename, int drv) {
FILE *f = fopen(filename, "rb"); // open file in read binary mode FILE *f = fopen(filename, "rb"); // open file in read binary mode
if (!f || fread(disk[drv].data, 1, 232960, f) != 232960) // load it into memory and check size if (!f || fread(disk[drv].data, 1, 232960, f) != 232960) // load it into memory and check size
return(0); return 0;
fclose(f); fclose(f);
sprintf(disk[drv].filename, "%s", filename); // update disk filename record sprintf(disk[drv].filename, "%s", filename); // update disk filename record
f = fopen(filename, "ab"); // try to open the file in append binary mode f = fopen(filename, "ab"); // try to open the file in append binary mode
if (!f){ // success, file is writable if (f) { // success, file is writable
disk[drv].readOnly = true; // update the readOnly flag disk[drv].readOnly = false; // update the readOnly flag
fclose(f); // and close it untouched fclose(f); // and close it untouched
} else {
disk[drv].readOnly = true; // f is NULL, no writable, no need to close it
} }
else disk[drv].readOnly = false; // f is NULL, no writable, no need to close it
char title[1000]; // UPDATE WINDOW TITLE char title[1000]; // UPDATE WINDOW TITLE
int i, a, b; int i, a, b;
i = a = 0; i = a = 0;
while (disk[0].filename[i] != 0) // find start of filename for disk0 while (disk[0].filename[i] != 0) // find start of filename for disk0
if (disk[0].filename[i++] == '\\') a = i; if (disk[0].filename[i++] == '\\') a = i;
@ -127,11 +156,10 @@ int insertFloppy(SDL_Window *wdo, char *filename, int drv){
while (disk[1].filename[i] != 0) // find start of filename for disk1 while (disk[1].filename[i] != 0) // find start of filename for disk1
if (disk[1].filename[i++] == '\\') b = i; if (disk[1].filename[i++] == '\\') b = i;
sprintf(title, "reinette II+ D1: %s D2: %s", \ sprintf(title, "Reinette ][+ D1: %s D2: %s", disk[0].filename + a, disk[1].filename + b);
disk[0].filename + a, disk[1].filename + b);
SDL_SetWindowTitle(wdo, title); // updates window title SDL_SetWindowTitle(wdo, title); // updates window title
return(1); return 1;
} }
@ -140,13 +168,14 @@ int saveFloppy(int drive){
if (disk[drive].readOnly) return 0; // file is read only write no aptempted if (disk[drive].readOnly) return 0; // file is read only write no aptempted
FILE *f = fopen(disk[drive].filename, "wb"); FILE *f = fopen(disk[drive].filename, "wb");
if (!f) return(0); // could not open the file in write overide binary if (!f) return 0; // could not open the file in write overide binary
if (fwrite(disk[drive].data, 1, 232960, f) != 232960) { // failed to write the full file (disk full ?) if (fwrite(disk[drive].data, 1, 232960, f) != 232960) { // failed to write the full file (disk full ?)
fclose(f); // release the ressource fclose(f); // release the ressource
return(0); return 0;
} }
fclose(f); // success, release the ressource fclose(f); // success, release the ressource
return (1); return 1;
} }
@ -179,25 +208,25 @@ void stepMotor(uint16_t address){
phases[curDrv][phase] = true; // update track# phases[curDrv][phase] = true; // update track#
disk[curDrv].track = (halfTrackPos[curDrv] + 1) / 2; disk[curDrv].track = (halfTrackPos[curDrv] + 1) / 2;
disk[curDrv].nibble = 0; // not sure this is necessary ?
} }
void setDrv(bool drv){ inline void setDrv(int drv) {
disk[drv].motorOn = disk[!drv].motorOn || disk[drv].motorOn; // if any of the motors were ON disk[drv].motorOn = disk[!drv].motorOn || disk[drv].motorOn; // if any of the motors were ON
disk[!drv].motorOn = false; // motor of the other drive is set to OFF disk[!drv].motorOn = false; // motor of the other drive is set to OFF
curDrv = drv; // set the current drive curDrv = drv; // set the current drive
} }
//========================================== MEMORY MAPPED SOFT SWITCHES HANDLER //========================================== MEMORY MAPPED SOFT SWITCHES HANDLER
// this function is called from readMem and writeMem in puce6502 // this function is called from readMem and writeMem
// it complements both functions when address 1is between 0xC000 and 0xCFFF // it complements both functions when address is in page $C0
uint8_t softSwitches(uint16_t address, uint8_t value, bool WRT) { uint8_t softSwitches(uint16_t address, uint8_t value, bool WRT) {
static uint8_t dLatch = 0; // disk ][ I/O register static uint8_t dLatch = 0; // disk ][ I/O register
switch (address) { switch (address) {
case 0xC000: return(KBD); // KEYBOARD case 0xC000: return KBD; // KEYBOARD
case 0xC010: KBD &= 0x7F; return(KBD); // KBDSTROBE case 0xC010: KBD &= 0x7F; return KBD; // KBDSTROBE
case 0xC020: // TAPEOUT (shall we listen it ? - try SAVE from applesoft) case 0xC020: // TAPEOUT (shall we listen it ? - try SAVE from applesoft)
case 0xC030: // SPEAKER case 0xC030: // SPEAKER
@ -207,46 +236,19 @@ uint8_t softSwitches(uint16_t address, uint8_t value, bool WRT){
case 0xC051: TEXT = true; break; // Text case 0xC051: TEXT = true; break; // Text
case 0xC052: MIXED = false; break; // Mixed off case 0xC052: MIXED = false; break; // Mixed off
case 0xC053: MIXED = true; break; // Mixed on case 0xC053: MIXED = true; break; // Mixed on
case 0xC054: PAGE = 1; break; // Page 1 case 0xC054: PAGE2 = false; break; // PAGE2 off
case 0xC055: PAGE = 2; break; // Page 2 case 0xC055: PAGE2 = true; break; // PAGE2 on
case 0xC056: HIRES = false; break; // HiRes off case 0xC056: HIRES = false; break; // HiRes off
case 0xC057: HIRES = true; break; // HiRes on case 0xC057: HIRES = true; break; // HiRes on
case 0xC061: return(PB0); // Push Button 0 case 0xC061: return PB0; // Push Button 0
case 0xC062: return(PB1); // Push Button 1 case 0xC062: return PB1; // Push Button 1
case 0xC063: return(PB2); // Push Button 2 case 0xC063: return PB2; // Push Button 2
case 0xC064: return(readPaddle(0)); // Paddle 0 case 0xC064: return readPaddle(0); // Paddle 0
case 0xC065: return(readPaddle(1)); // Paddle 1 case 0xC065: return readPaddle(1); // Paddle 1
case 0xC066: return(readPaddle(0)); // Paddle 2 -- not implemented
case 0xC067: return(readPaddle(1)); // Paddle 3 -- not implemented
case 0xC070: resetPaddles(); break; // paddle timer RST case 0xC070: resetPaddles(); break; // paddle timer RST
case 0xC0E0 ... 0xC0E7: stepMotor(address); break; // MOVE DRIVE HEAD
case 0xCFFF:
case 0xC0E8: disk[curDrv].motorOn = false; break; // MOTOROFF
case 0xC0E9: disk[curDrv].motorOn = true; break; // MOTORON
case 0xC0EA: setDrv(0); break; // DRIVE0EN
case 0xC0EB: setDrv(1); break; // DRIVE1EN
case 0xC0EC: // Shift Data Latch
if (disk[curDrv].writeMode) // writting
disk[curDrv].data[disk[curDrv].track*0x1A00+disk[curDrv].nibble]=dLatch;
else // reading
dLatch=disk[curDrv].data[disk[curDrv].track*0x1A00+disk[curDrv].nibble];
disk[curDrv].nibble = (disk[curDrv].nibble + 1) % 0x1A00; // turn floppy of 1 nibble
return(dLatch);
case 0xC0ED: dLatch = value; break; // Load Data Latch
case 0xC0EE: // latch for READ
disk[curDrv].writeMode = false;
return(disk[curDrv].readOnly ? 0x80 : 0); // check protection
case 0xC0EF: disk[curDrv].writeMode = true; break; // latch for WRITE
case 0xC080: // LANGUAGE CARD : case 0xC080: // LANGUAGE CARD :
case 0xC084: LCBK2 = 1; LCRD = 1; LCWR = 0; LCWFF = 0; break; // LC2RD case 0xC084: LCBK2 = 1; LCRD = 1; LCWR = 0; LCWFF = 0; break; // LC2RD
case 0xC081: case 0xC081:
@ -263,8 +265,89 @@ uint8_t softSwitches(uint16_t address, uint8_t value, bool WRT){
case 0xC08E: LCBK2 = 0; LCRD = 0; LCWR = 0; LCWFF = 0; break; // ROMONLY1 case 0xC08E: LCBK2 = 0; LCRD = 0; LCWR = 0; LCWFF = 0; break; // ROMONLY1
case 0xC08B: case 0xC08B:
case 0xC08F: LCBK2 = 0; LCRD = 1; LCWR |= LCWFF; LCWFF = !WRT; break; // LC1RW case 0xC08F: LCBK2 = 0; LCRD = 1; LCWR |= LCWFF; LCWFF = !WRT; break; // LC1RW
case 0xC0E0:
case 0xC0E1:
case 0xC0E2:
case 0xC0E3:
case 0xC0E4:
case 0xC0E5:
case 0xC0E6:
case 0xC0E7: stepMotor(address); break; // MOVE DRIVE HEAD
case 0xCFFF:
case 0xC0E8: disk[curDrv].motorOn = false; break; // MOTOROFF
case 0xC0E9: disk[curDrv].motorOn = true; break; // MOTORON
case 0xC0EA: setDrv(0); break; // DRIVE0EN
case 0xC0EB: setDrv(1); break; // DRIVE1EN
case 0xC0EC: // Shift Data Latch
if (disk[curDrv].writeMode) // writting
disk[curDrv].data[disk[curDrv].track*0x1A00+disk[curDrv].nibble]=dLatch;// good luck gcc
else // reading
dLatch=disk[curDrv].data[disk[curDrv].track*0x1A00+disk[curDrv].nibble];// easy peasy
disk[curDrv].nibble = (disk[curDrv].nibble + 1) % 0x1A00; // turn floppy of 1 nibble
return dLatch;
case 0xC0ED: dLatch = value; break; // Load Data Latch
case 0xC0EE: // latch for READ
disk[curDrv].writeMode = false;
return disk[curDrv].readOnly ? 0x80 : 0; // check protection
case 0xC0EF: disk[curDrv].writeMode = true; break; // latch for WRITE
}
return ticks % 0xFF; // catch all, gives a 'floating' value
}
//======================================================================= MEMORY
// these two functions are imported into puce6502.c
uint8_t readMem(uint16_t address) {
if (address < RAMSIZE)
return ram[address]; // RAM
if (address >= ROMSTART) {
if (!LCRD)
return rom[address - ROMSTART]; // ROM
if (LCBK2 && (address < 0xE000))
return bk2[address - BK2START]; // BK2
return lgc[address - LGCSTART]; // LC
}
if ((address & 0xFF00) == SL6START)
return sl6[address - SL6START]; // disk][
if ((address & 0xF000) == 0xC000)
return softSwitches(address, 0, false); // Soft Switches
return ticks & 0xFF; // catch all, gives a 'floating' value
}
void writeMem(uint16_t address, uint8_t value) {
if (address < RAMSIZE) {
ram[address] = value; // RAM
return;
}
if (LCWR && (address >= ROMSTART)) {
if (LCBK2 && (address < 0xE000)) {
bk2[address - BK2START] = value; // BK2
return;
}
lgc[address - LGCSTART] = value; // LC
return;
}
if ((address & 0xF000) == 0xC000) {
softSwitches(address, value, true); // Soft Switches
return;
} }
return(ticks%256); // catch all
} }
@ -272,71 +355,49 @@ uint8_t softSwitches(uint16_t address, uint8_t value, bool WRT){
int main(int argc, char *argv[]) { int main(int argc, char *argv[]) {
char workDir[1000]; // find the working directory
int workDirSize = 0, i = 0;
while (argv[0][i] != '\0'){
workDir[i] = argv[0][i];
if (argv[0][++i] == '\\') workDirSize = i + 1; // find the last '/' if any
}
// SDL INITIALIZATION //========================================================= SDL INITIALIZATION
double fps = 60, frameTime = 0, frameDelay = 1000.0 / 60.0; // targeting 60 FPS
Uint32 frameStart = 0, frame = 0;
int zoom = 2; int zoom = 2;
uint8_t tries = 0; // disk ][ speed-up uint8_t tries = 0; // for disk ][ speed-up access
SDL_Event event; SDL_Event event;
SDL_bool paused = false, running = true, ctrl, shift, alt; SDL_bool running = true, paused = false, ctrl = false, shift = false, alt = false;
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0) { if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0) {
printf("failed to initialize SDL2 : %s", SDL_GetError()); printf("failed to initialize SDL2 : %s", SDL_GetError());
return(-1); return -1;
} }
SDL_EventState(SDL_DROPFILE, SDL_ENABLE); // ask SDL2 to read dropfile events SDL_Window *wdo = SDL_CreateWindow("Reinette ][+", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 280 * zoom, 192 * zoom, SDL_WINDOW_OPENGL);
SDL_Renderer *rdr = SDL_CreateRenderer(wdo, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
SDL_Window *wdo = SDL_CreateWindow("reinette II+", SDL_WINDOWPOS_CENTERED, \
SDL_WINDOWPOS_CENTERED, 280*zoom, 192*zoom, SDL_WINDOW_OPENGL);
SDL_Surface *sshot; // used later for the screenshots
SDL_Renderer *rdr = SDL_CreateRenderer(wdo, -1, SDL_RENDERER_ACCELERATED); // | SDL_RENDERER_PRESENTVSYNC);
SDL_SetRenderDrawBlendMode(rdr, SDL_BLENDMODE_NONE); // SDL_BLENDMODE_BLEND); SDL_SetRenderDrawBlendMode(rdr, SDL_BLENDMODE_NONE); // SDL_BLENDMODE_BLEND);
SDL_EventState(SDL_DROPFILE, SDL_ENABLE); // ask SDL2 to read dropfile events
SDL_RenderSetScale(rdr, zoom, zoom); SDL_RenderSetScale(rdr, zoom, zoom);
SDL_Surface *sshot; // used later for the screenshots
// SDL AUDIO INITIALIZATION
//=================================================== SDL AUDIO INITIALIZATION
SDL_AudioSpec desired = { 96000, AUDIO_S8, 1, 0, 4096, 0, 0, NULL, NULL }; SDL_AudioSpec desired = { 96000, AUDIO_S8, 1, 0, 4096, 0, 0, NULL, NULL };
audioDevice = SDL_OpenAudioDevice(NULL, 0, &desired, NULL, SDL_FALSE); // get the audio device ID audioDevice = SDL_OpenAudioDevice(NULL, 0, &desired, NULL, SDL_FALSE); // get the audio device ID
SDL_PauseAudioDevice(audioDevice, muted); // unmute it (muted is false) SDL_PauseAudioDevice(audioDevice, muted); // unmute it (muted is false)
uint8_t volume = 2; uint8_t volume = 4;
for (int i=1; i<audioBufferSize; i++){ // two audio buffers, for (int i = 0; i < audioBufferSize; i++) { // two audio buffers,
audioBuffer[true][i] = volume; // one used when SPKR is true audioBuffer[true][i] = volume; // one used when SPKR is true
audioBuffer[false][i] = -volume; // the other when SPKR is false audioBuffer[false][i] = -volume; // the other when SPKR is false
} }
// LOAD NORMAL AND REVERSE CHARACTERS BITMAPS
SDL_Surface *tmpSurface; //===================================== VARIABLES USED IN THE VIDEO PRODUCTION
workDir[workDirSize] = '\0';
tmpSurface = SDL_LoadBMP(strncat(workDir, "assets/font-normal.bmp", 23)); // load the normal font
SDL_Texture *normCharTexture = SDL_CreateTextureFromSurface(rdr, tmpSurface);
SDL_FreeSurface(tmpSurface);
workDir[workDirSize] = '\0'; int TextCache[24][40] = { 0 };
tmpSurface = SDL_LoadBMP(strncat(workDir, "assets/font-reverse.bmp", 24)); // load the reverse font int LoResCache[24][40] = { 0 };
SDL_Texture *revCharTexture = SDL_CreateTextureFromSurface(rdr, tmpSurface); int HiResCache[192][40] = { 0 }; // check which Hi-Res 7 dots needs redraw
SDL_FreeSurface(tmpSurface);
// VARIABLES USED IN THE VIDEO PRODUCTION
uint16_t vRamBase = 0x0400; // can be $400, $800, $2000 or $4000
uint16_t previousDots[192][40] = {0}; // check which Hi-Res 7 dots needs redraw
uint8_t previousBit[192][40] = { 0 }; // the last bit value of the byte before. uint8_t previousBit[192][40] = { 0 }; // the last bit value of the byte before.
uint8_t lineLimit; // the line limit between GR and TEXT
uint8_t glyph; // a TEXT character, or 2 blocks in GR
uint8_t colorIdx = 0; // to index the color arrays
bool monochrome = false; // starting in color
enum characterAttribute { A_NORMAL, A_INVERSE, A_FLASH } glyphAttr; // character attribute in TEXT enum characterAttribute { A_NORMAL, A_INVERSE, A_FLASH } glyphAttr; // character attribute in TEXT
uint8_t flashCycle = 0; // TEXT cursor flashes at 2Hz
SDL_Rect drvRect[2] = { { 272, 188, 4, 4 }, { 276, 188, 4, 4 } }; // disk drive status squares SDL_Rect drvRect[2] = { { 272, 188, 4, 4 }, { 276, 188, 4, 4 } }; // disk drive status squares
SDL_Rect pixelGR = { 0, 0, 7, 4 }; // a block in LoRes SDL_Rect pixelGR = { 0, 0, 7, 4 }; // a block in LoRes
@ -353,18 +414,21 @@ int main(int argc, char *argv[]){
{ 0, 0, 0 }, { 226, 57, 86 }, { 28, 116, 205 }, { 126, 110, 173 }, { 0, 0, 0 }, { 226, 57, 86 }, { 28, 116, 205 }, { 126, 110, 173 },
{ 31, 129, 128 }, { 137, 130, 122 }, { 86, 168, 228 }, { 144, 178, 223 }, { 31, 129, 128 }, { 137, 130, 122 }, { 86, 168, 228 }, { 144, 178, 223 },
{ 151, 88, 34 }, { 234, 108, 21 }, { 158, 151, 143 }, { 255, 206, 240 }, { 151, 88, 34 }, { 234, 108, 21 }, { 158, 151, 143 }, { 255, 206, 240 },
{144, 192, 49}, {255, 253, 166}, {159, 210,213}, {255, 255, 255}}; { 144, 192, 49 }, { 255, 253, 166 }, { 159, 210, 213 }, { 255, 255, 255 }
};
const int hcolor[16][3] = { // the high res colors (2 light levels) const int hcolor[16][3] = { // the high res colors (2 light levels)
{ 0, 0, 0 }, { 144, 192, 49 }, { 126, 110, 173 }, { 255, 255, 255 }, { 0, 0, 0 }, { 144, 192, 49 }, { 126, 110, 173 }, { 255, 255, 255 },
{ 0, 0, 0 }, { 234, 108, 21 }, { 86, 168, 228 }, { 255, 255, 255 }, { 0, 0, 0 }, { 234, 108, 21 }, { 86, 168, 228 }, { 255, 255, 255 },
{ 0, 0, 0 }, { 63, 55, 86 }, { 72, 96, 25 }, { 255, 255, 255 }, { 0, 0, 0 }, { 63, 55, 86 }, { 72, 96, 25 }, { 255, 255, 255 },
{ 0, 0, 0}, { 43, 84, 114}, {117, 54, 10}, {255, 255, 255}}; { 0, 0, 0 }, { 43, 84, 114 }, { 117, 54, 10 }, { 255, 255, 255 }
};
const int offsetGR[24] = { // helper for TEXT and GR video generation const int offsetGR[24] = { // helper for TEXT and GR video generation
0x000, 0x080, 0x100, 0x180, 0x200, 0x280, 0x300, 0x380, // lines 0-7 0x0000, 0x0080, 0x0100, 0x0180, 0x0200, 0x0280, 0x0300, 0x0380, // lines 0-7
0x028, 0x0A8, 0x128, 0x1A8, 0x228, 0x2A8, 0x328, 0x3A8, // lines 8-15 0x0028, 0x00A8, 0x0128, 0x01A8, 0x0228, 0x02A8, 0x0328, 0x03A8, // lines 8-15
0x050, 0x0D0, 0x150, 0x1D0, 0x250, 0x2D0, 0x350, 0x3D0}; // lines 16-23 0x0050, 0x00D0, 0x0150, 0x01D0, 0x0250, 0x02D0, 0x0350, 0x03D0 // lines 16-23
};
const int offsetHGR[192] = { // helper for HGR video generation const int offsetHGR[192] = { // helper for HGR video generation
0x0000, 0x0400, 0x0800, 0x0C00, 0x1000, 0x1400, 0x1800, 0x1C00, // lines 0-7 0x0000, 0x0400, 0x0800, 0x0C00, 0x1000, 0x1400, 0x1800, 0x1C00, // lines 0-7
@ -390,19 +454,42 @@ int main(int argc, char *argv[]){
0x0250, 0x0650, 0x0A50, 0x0E50, 0x1250, 0x1650, 0x1A50, 0x1E50, 0x0250, 0x0650, 0x0A50, 0x0E50, 0x1250, 0x1650, 0x1A50, 0x1E50,
0x02D0, 0x06D0, 0x0AD0, 0x0ED0, 0x12D0, 0x16D0, 0x1AD0, 0x1ED0, // lines 168-183 0x02D0, 0x06D0, 0x0AD0, 0x0ED0, 0x12D0, 0x16D0, 0x1AD0, 0x1ED0, // lines 168-183
0x0350, 0x0750, 0x0B50, 0x0F50, 0x1350, 0x1750, 0x1B50, 0x1F50, // lines 176-183 0x0350, 0x0750, 0x0B50, 0x0F50, 0x1350, 0x1750, 0x1B50, 0x1F50, // lines 176-183
0x03D0, 0x07D0, 0x0BD0, 0x0FD0, 0x13D0, 0x17D0, 0x1BD0, 0x1FD0}; // lines 184-191 0x03D0, 0x07D0, 0x0BD0, 0x0FD0, 0x13D0, 0x17D0, 0x1BD0, 0x1FD0 // lines 184-191
};
// VM INITIALIZATION
//================================= LOAD NORMAL AND REVERSE CHARACTERS BITMAPS
char workDir[1000]; // find the working directory
int workDirSize = 0, i = 0;
while (argv[0][i] != '\0') {
workDir[i] = argv[0][i];
if (argv[0][++i] == '\\') workDirSize = i + 1; // find the last '/' if any
}
SDL_Surface *tmpSurface;
workDir[workDirSize] = 0;
tmpSurface = SDL_LoadBMP(strncat(workDir, "assets/font-normal.bmp", 23)); // load the normal font
SDL_Texture *normCharTexture = SDL_CreateTextureFromSurface(rdr, tmpSurface);
SDL_FreeSurface(tmpSurface);
workDir[workDirSize] = 0;
tmpSurface = SDL_LoadBMP(strncat(workDir, "assets/font-reverse.bmp", 24)); // load the reverse font
SDL_Texture *revCharTexture = SDL_CreateTextureFromSurface(rdr, tmpSurface);
SDL_FreeSurface(tmpSurface);
//================================================================== LOAD ROMS
workDir[workDirSize] = 0; workDir[workDirSize] = 0;
FILE *f = fopen(strncat(workDir, "rom/appleII+.rom", 17), "rb"); // load the Apple II+ ROM FILE *f = fopen(strncat(workDir, "rom/appleII+.rom", 17), "rb"); // load the Apple II+ ROM
if (!f) { if (!f) {
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Fatal error", "Could not locate appleII+.rom in the rom folder", NULL); SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Fatal error", "Could not locate appleII+.rom in the rom folder", NULL);
return(1); // exit return 1; // exit
} }
if (fread(rom, 1, ROMSIZE, f) != ROMSIZE) { // the file is too small if (fread(rom, 1, ROMSIZE, f) != ROMSIZE) { // the file is too small
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Fatal error", "appleII+.rom should be exactly 12 KB", NULL); SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Fatal error", "appleII+.rom should be exactly 12 KB", NULL);
return(1); // exit return 1; // exit
} }
fclose(f); fclose(f);
@ -410,37 +497,41 @@ int main(int argc, char *argv[]){
f = fopen(strncat(workDir, "rom/diskII.rom", 15), "rb"); // load the P5A disk ][ PROM f = fopen(strncat(workDir, "rom/diskII.rom", 15), "rb"); // load the P5A disk ][ PROM
if (!f) { if (!f) {
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Fatal error", "Could not locate diskII.rom in the rom folder", NULL); SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Fatal error", "Could not locate diskII.rom in the rom folder", NULL);
return(1); // exit return 1; // exit
} }
if (fread(sl6, 1, 256, f) != 256) { // file too small if (fread(sl6, 1, 256, f) != 256) { // file too small
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Fatal error", "diskII.rom should be exactly 256 bytes", NULL); SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Fatal error", "diskII.rom should be exactly 256 bytes", NULL);
return(1); // exit return 1; // exit
} }
fclose(f); fclose(f);
if (argc > 1) insertFloppy(wdo, argv[1], 0); // load .nib in parameter into drive 0
for (int i=0; i<RAMSIZE; i++) ram[i] = 0xAA; // Joust and Planetoids won't work if page zero is zeroided //========================================================== VM INITIALIZATION
puce6502Reset(); // reset the 6502 if (argc > 1) insertFloppy(wdo, argv[1], 0); // load floppy if provided at command line
// reset the CPU
puce6502RST(); // reset the 6502
// dirty hack, fix soon... if I understand why
ram[0x4D] = 0xAA; // Joust crashes if this memory location equals zero
ram[0xD0] = 0xAA; // Planetoids won't work if this memory location equals zero
//================================================================== MAIN LOOP //================================================================== MAIN LOOP
while (running) { while (running) {
frameStart = SDL_GetTicks(); // start of a new frame if (!paused) { // the apple II is clocked at 1023000.0 Hhz
puce6502Exec(17050); // execute instructions for 1/60 of a second
if (!paused){
puce6502Exec((long long int)(1023000.0 / fps)); // using actualized frame rate
while (disk[curDrv].motorOn && ++tries) // until motor is off or i reaches 255+1=0 while (disk[curDrv].motorOn && ++tries) // until motor is off or i reaches 255+1=0
puce6502Exec(5000); // artificial drive speed up puce6502Exec(5000); // speed up drive access artificially
} }
//=============================================================== USER INPUT //=============================================================== USER INPUT
while (SDL_PollEvent(&event)) { while (SDL_PollEvent(&event)) {
alt = SDL_GetModState() & KMOD_ALT ? true : false; alt = SDL_GetModState() & KMOD_ALT ? true : false;
ctrl = SDL_GetModState() & KMOD_CTRL ? true : false; ctrl = SDL_GetModState() & KMOD_CTRL ? true : false;
shift = SDL_GetModState() & KMOD_SHIFT ? true : false; shift = SDL_GetModState() & KMOD_SHIFT ? true : false;
@ -453,42 +544,43 @@ int main(int argc, char *argv[]){
// if (event.type == SDL_WINDOWEVENT) { // pause if the window loses focus // if (event.type == SDL_WINDOWEVENT) { // pause if the window loses focus
// if (event.window.event == SDL_WINDOWEVENT_FOCUS_LOST) // if (event.window.event == SDL_WINDOWEVENT_FOCUS_LOST)
// paused = true; // paused = true;
// if (event.window.event == SDL_WINDOWEVENT_FOCUS_GAINED) // else if (event.window.event == SDL_WINDOWEVENT_FOCUS_GAINED)
// paused = false; // paused = false;
// } // }
if (event.type == SDL_DROPFILE) { // user dropped a file if (event.type == SDL_DROPFILE) { // user dropped a file
char *filename = event.drop.file; // get full pathname char *filename = event.drop.file; // get full pathname
if (!insertFloppy(wdo, filename, alt)) // if ALT : drv 1 else drv 0 if (!insertFloppy(wdo, filename, alt)) // if ALT is pressed : drv 1 else drv 0
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Load", "Not a valid nib file", NULL); SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Load", "Not a valid nib file", NULL);
SDL_free(filename); // free filename memory SDL_free(filename); // free filename memory
paused = false; // might already be the case paused = false; // might already be the case
if (!(alt || ctrl)){ // unless ALT or CTRL were
if (!(alt || ctrl)) { // if ALT or CTRL were not pressed
ram[0x3F4] = 0; // unset the Power-UP byte ram[0x3F4] = 0; // unset the Power-UP byte
puce6502Reset(); // do a cold reset puce6502RST(); // do a cold reset
memset(ram, 0, sizeof(ram));
} }
} }
if (event.type == SDL_KEYDOWN) // a key has been pressed if (event.type == SDL_KEYDOWN) { // a key has been pressed
switch (event.key.keysym.sym) { switch (event.key.keysym.sym) {
// EMULATOR CONTROL : // EMULATOR CONTROLS :
case SDLK_F1: // SAVES case SDLK_F1: // SAVES
if (ctrl) { if (ctrl) {
if (saveFloppy(0)) if (saveFloppy(0))
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Save", "\nDisk 1 saved back to file\n", NULL); SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Save", "\nDisk 1 saved back to file\n", NULL);
else else
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Save", "\nThere was an error while saving Disk 1\n", NULL); SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Save", "\nTError while saving Disk 1\n", NULL);
} } else if (alt) {
else if (alt){
if (saveFloppy(1)) if (saveFloppy(1))
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Save", "\nDisk 2 saved back to file\n", NULL); SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Save", "\nDisk 2 saved back to file\n", NULL);
else else
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Save", "\nThere was an error while saving Disk 2\n", NULL); SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Save", "\nError while saving Disk 2\n", NULL);
} else {
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_WARNING, "Save", "CTRL-F1 to save D1\nALT-F1 to save D2\n", NULL);
} }
else
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_WARNING, "Save", "ctrl F1 to save D1\nalt F1 to save D2\n", NULL);
break; break;
@ -501,14 +593,16 @@ int main(int argc, char *argv[]){
if (disk[0].filename[i] == '\\') a = i; if (disk[0].filename[i] == '\\') a = i;
if (disk[0].filename[i] == '.') b = i; if (disk[0].filename[i] == '.') b = i;
} }
strncat(workDir, "screenshots", 13); strncat(workDir, "screenshots\\", 14);
if (a != b) strncat(workDir, disk[0].filename + a, b - a); if (a != b)
else strncat(workDir,"\\no disk", 10); strncat(workDir, disk[0].filename + a, b - a);
else
strncat(workDir, "no disk", 10);
strncat(workDir, ".bmp", 5); strncat(workDir, ".bmp", 5);
SDL_SaveBMP(sshot, workDir); SDL_SaveBMP(sshot, workDir);
SDL_FreeSurface(sshot); SDL_FreeSurface(sshot);
break;
} }
break;
case SDLK_F3: // PASTE text from clipboard case SDLK_F3: // PASTE text from clipboard
if (SDL_HasClipboardText()) { if (SDL_HasClipboardText()) {
@ -527,7 +621,7 @@ int main(int argc, char *argv[]){
if (shift && (volume < 120)) volume++; // increase volume if (shift && (volume < 120)) volume++; // increase volume
if (ctrl && (volume > 0)) volume--; // decrease volume if (ctrl && (volume > 0)) volume--; // decrease volume
if (!ctrl && !shift) muted = !muted; // toggle mute / unmute if (!ctrl && !shift) muted = !muted; // toggle mute / unmute
for (int i=1; i<audioBufferSize; i++){ // update the audio buffers, for (int i = 0; i < audioBufferSize; i++) { // update the audio buffers,
audioBuffer[true][i] = volume; // one used when SPKR is true audioBuffer[true][i] = volume; // one used when SPKR is true
audioBuffer[false][i] = -volume; // the other when SPKR is false audioBuffer[false][i] = -volume; // the other when SPKR is false
} }
@ -553,37 +647,42 @@ int main(int argc, char *argv[]){
SDL_RenderSetScale(rdr, zoom, zoom); // update renderer size SDL_RenderSetScale(rdr, zoom, zoom); // update renderer size
break; break;
case SDLK_F8: monochrome = !monochrome; break; // toggle monochrome for HGR mode case SDLK_F10: paused = !paused; break; // toggle pause
case SDLK_F9: paused = !paused; break; // toggle pause
case SDLK_F10: puce6502Break(); break; // simulate a break case SDLK_F11: puce6502RST(); break; // simulate a reset
case SDLK_F11: puce6502Reset(); break; // reset
case SDLK_F12: // help box case SDLK_F12: // help box
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Help", SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Help",
"~ reinette II plus v0.4b ~ \ "\tReinette ][ plus v0.4.8\n"
\n\nctrl F1\twrites the changes of the floppy in drive 0 \ "\n"
\nalt F1\twrites the changes of the floppy in drive 1 \ "ctrl F1\twrites the changes of the floppy in drive 0\n"
\n\nF2\tsave a screenshot into the screenshots directory \ "alt F1\twrites the changes of the floppy in drive 1\n"
\nF3\tpaste text from clipboard \ "\n"
\n\nF4\tmute / un-mute sound \ "F2\tsave a screenshot into the screenshots directory\n"
\nshift F4\tincrease volume \ "F3\tpaste text from clipboard\n"
\nctrl F4\tdecrease volume \ "\n"
\n\nF5\treset joystick release speed \ "F4\tmute / un-mute sound\n"
\nshift F5\tincrease joystick release speed \ "shift F4\tincrease volume\n"
\ncrtl F5\tdecrease joystick release speed \ "ctrl F4\tdecrease volume\n"
\n\nF6\treset joystick action speed \ "\n"
\nshift F6\tincrease joystick action speed \ "F5\treset joystick release speed\n"
\ncrtl F6\tdecrease joystick action speed \ "shift F5\tincrease joystick release speed\n"
\n\nF7\treset the zoom to 2:1 \ "crtl F5\tdecrease joystick release speed\n"
\nshift F7\tincrease zoom up to 8:1 max \ "\n"
\nctrl F7\tdecrease zoom down to 1:1 pixels \ "F6\treset joystick action speed\n"
\nF8\tmonochrome / color display (only in HGR) \ "shift F6\tincrease joystick action speed\n"
\nF9\tpause / un-pause the emulator \ "crtl F6\tdecrease joystick action speed\n"
\n\nF10\tload binary file into $8000 \ "\n"
\nF11\treset \ "F7\treset zoom to 2:1\n"
\nctrl F11\tbreak \ "shift F7\tincrease zoom up to 8:1\n"
\n\nF12\tthis help \ "ctrl F7\tdecrease zoom down to 1:1\n"
\n\nmore information at github.com/ArthurFerreira2", NULL); "\n"
"F10\tpause / un-pause the emulator\n"
"F11\treset\n"
"\n"
"F12\tthis help\n"
"\n"
"More information at github.com/ArthurFerreira2\n", NULL);
break; break;
// EMULATED KEYS : // EMULATED KEYS :
@ -649,8 +748,9 @@ int main(int argc, char *argv[]){
case SDLK_KP_5: GCD[1] = -1; GCA[1] = 1; break; // pdl1 <- case SDLK_KP_5: GCD[1] = -1; GCA[1] = 1; break; // pdl1 <-
case SDLK_KP_2: GCD[1] = 1; GCA[1] = 1; break; // pdl1 -> case SDLK_KP_2: GCD[1] = 1; GCA[1] = 1; break; // pdl1 ->
} }
}
if (event.type == SDL_KEYUP) if (event.type == SDL_KEYUP) {
switch (event.key.keysym.sym) { switch (event.key.keysym.sym) {
case SDLK_KP_1: GCD[0] = 1; GCA[0] = 0; break; // pdl0 -> case SDLK_KP_1: GCD[0] = 1; GCA[0] = 0; break; // pdl0 ->
case SDLK_KP_3: GCD[0] = -1; GCA[0] = 0; break; // pdl0 <- case SDLK_KP_3: GCD[0] = -1; GCA[0] = 0; break; // pdl0 <-
@ -658,31 +758,32 @@ int main(int argc, char *argv[]){
case SDLK_KP_2: GCD[1] = -1; GCA[1] = 0; break; // pdl1 <- case SDLK_KP_2: GCD[1] = -1; GCA[1] = 0; break; // pdl1 <-
} }
} }
}
for (int pdl = 0; pdl < 2; pdl++) { // update the two paddles positions for (int pdl = 0; pdl < 2; pdl++) { // update the two paddles positions
if (GCA[pdl]) { // actively pushing the stick if (GCA[pdl]) { // actively pushing the stick
GCP[pdl] += GCD[pdl] * GCActionSpeed; GCP[pdl] += GCD[pdl] * GCActionSpeed;
if (GCP[pdl] > 255) GCP[pdl] = 255; if (GCP[pdl] > 255) GCP[pdl] = 255;
if (GCP[pdl] < 0) GCP[pdl] = 0; if (GCP[pdl] < 0) GCP[pdl] = 0;
} } else { // the stick is return back to center
else { // the stick is return back to center
GCP[pdl] += GCD[pdl] * GCReleaseSpeed; GCP[pdl] += GCD[pdl] * GCReleaseSpeed;
if (GCD[pdl] == 1 && GCP[pdl] > 127) GCP[pdl] = 127; if (GCD[pdl] == 1 && GCP[pdl] > 127) GCP[pdl] = 127;
if (GCD[pdl] == -1 && GCP[pdl] < 127) GCP[pdl] = 127; if (GCD[pdl] == -1 && GCP[pdl] < 127) GCP[pdl] = 127;
} }
} }
//============================================================= VIDEO OUTPUT //============================================================= VIDEO OUTPUT
// HIGH RES GRAPHICS // HIGH RES GRAPHICS
if (!TEXT && HIRES) { if (!TEXT && HIRES) {
uint16_t word; uint16_t word;
uint8_t bits[16], bit, pbit, colorSet, even; uint8_t bits[16], bit, pbit, colorSet, even;
vRamBase = PAGE * 0x2000; // PAGE is 1 or 2 uint16_t vRamBase = 0x2000 + PAGE2 * 0x2000;
lineLimit = MIXED ? 160 : 192; uint8_t lastLine = MIXED ? 160 : 192;
uint8_t colorIdx = 0; // to index the color arrays
for (int line=0; line<lineLimit; line++){ // for every line for (int line = 0; line < lastLine; line++) { // for every line
for (int col = 0; col < 40; col += 2) { // for every 7 horizontal dots for (int col = 0; col < 40; col += 2) { // for every 7 horizontal dots
int x = col * 7; int x = col * 7;
even = 0; even = 0;
@ -690,8 +791,8 @@ int main(int argc, char *argv[]){
word = (uint16_t)(ram[vRamBase + offsetHGR[line] + col + 1]) << 8; // store the two next bytes into 'word' word = (uint16_t)(ram[vRamBase + offsetHGR[line] + col + 1]) << 8; // store the two next bytes into 'word'
word += ram[vRamBase + offsetHGR[line] + col]; // in reverse order word += ram[vRamBase + offsetHGR[line] + col]; // in reverse order
if (previousDots[line][col] != word || !frame){ // check if this group of 7 dots need a redraw if (HiResCache[line][col] != word || !flashCycle) { // check if this group of 7 dots need a redraw
// or refresh the full screen every 1/2 second
for (bit=0; bit < 16; bit++) // store all bits 'word' into 'bits' for (bit=0; bit < 16; bit++) // store all bits 'word' into 'bits'
bits[bit] = (word >> bit) & 1; bits[bit] = (word >> bit) & 1;
colorSet = bits[7] * 4; // select the right color set colorSet = bits[7] * 4; // select the right color set
@ -703,83 +804,84 @@ int main(int argc, char *argv[]){
colorSet = bits[15] * 4; // update the color set colorSet = bits[15] * 4; // update the color set
bit++; // skip bit 7 bit++; // skip bit 7
} }
if (monochrome)
colorIdx = bits[bit] * 3; // black if bit==0, white if bit==1
else
colorIdx = even + colorSet + (bits[bit] << 1) + (pbit); colorIdx = even + colorSet + (bits[bit] << 1) + (pbit);
SDL_SetRenderDrawColor(rdr, hcolor[colorIdx][0], \ SDL_SetRenderDrawColor(rdr, hcolor[colorIdx][0], hcolor[colorIdx][1], hcolor[colorIdx][2], SDL_ALPHA_OPAQUE);
hcolor[colorIdx][1], hcolor[colorIdx][2], SDL_ALPHA_OPAQUE);
SDL_RenderDrawPoint(rdr, x++, line); SDL_RenderDrawPoint(rdr, x++, line);
pbit = bits[bit++]; // proceed to the next pixel pbit = bits[bit++]; // proceed to the next pixel
even = even ? 0 : 8; // one pixel every two is darker even = even ? 0 : 8; // one pixel every two is darker
} }
previousDots[line][col] = word; // update the video cache HiResCache[line][col] = word; // update the video cache
if ((col < 37) && (previousBit[line][col + 2] != pbit)) { // check color franging effect on the dot after if ((col < 37) && (previousBit[line][col + 2] != pbit)) { // check color franging effect on the dot after
previousBit[line][col + 2] = pbit; // set pbit and clear the previousBit[line][col + 2] = pbit; // set pbit and clear the
previousDots[line][col + 2] = -1; // video cache for next dot HiResCache[line][col + 2] = -1; // video cache for next dot
} }
} // if (previousDots[line][col] ... } // if (HiResCache[line][col] ...
} }
} }
} }
// lOW RES GRAPHICS // lOW RES GRAPHICS
else if (!TEXT) { // and not in HIRES else if (!TEXT) { // and not in HIRES
vRamBase = PAGE * 0x0400; uint16_t vRamBase = 0x400 + PAGE2 * 0x0400;
lineLimit = MIXED ? 20 : 24; uint8_t lastLine = MIXED ? 20 : 24;
uint8_t glyph; // 2 blocks in GR
uint8_t colorIdx = 0; // to index the color arrays
for (int col = 0; col < 40; col++) { // for each column for (int col = 0; col < 40; col++) { // for each column
pixelGR.x = col * 7; pixelGR.x = col * 7;
for (int line=0; line<lineLimit; line++){ // for each row for (int line = 0; line < lastLine; line++) { // for each row
pixelGR.y = line * 8; // first block pixelGR.y = line * 8; // first block
glyph = ram[vRamBase + offsetGR[line] + col]; // read video memory glyph = ram[vRamBase + offsetGR[line] + col]; // read video memory
if (LoResCache[line][col] != glyph || !flashCycle) {
LoResCache[line][col] = glyph;
colorIdx = glyph & 0x0F; // first nibble colorIdx = glyph & 0x0F; // first nibble
SDL_SetRenderDrawColor(rdr, color[colorIdx][0], \ SDL_SetRenderDrawColor(rdr, color[colorIdx][0], color[colorIdx][1], color[colorIdx][2], SDL_ALPHA_OPAQUE);
color[colorIdx][1], color[colorIdx][2], SDL_ALPHA_OPAQUE);
SDL_RenderFillRect(rdr, &pixelGR); SDL_RenderFillRect(rdr, &pixelGR);
pixelGR.y += 4; // second block pixelGR.y += 4; // second block
colorIdx = (glyph & 0xF0) >> 4; // second nibble colorIdx = (glyph & 0xF0) >> 4; // second nibble
SDL_SetRenderDrawColor(rdr, color[colorIdx][0], \ SDL_SetRenderDrawColor(rdr, color[colorIdx][0], color[colorIdx][1], color[colorIdx][2], SDL_ALPHA_OPAQUE);
color[colorIdx][1], color[colorIdx][2], SDL_ALPHA_OPAQUE);
SDL_RenderFillRect(rdr, &pixelGR); SDL_RenderFillRect(rdr, &pixelGR);
} }
} }
} }
}
// TEXT 40 COLUMNS // TEXT 40 COLUMNS
if (TEXT || MIXED) { // not Full Graphics
if (TEXT || MIXED){ uint16_t vRamBase = 0x400 +PAGE2 * 0x0400;
vRamBase = PAGE * 0x0400; uint8_t firstLine = TEXT ? 0 : 20;
lineLimit = TEXT ? 0 : 20; uint8_t glyph; // a TEXT character
for (int col = 0; col < 40; col++) { // for each column for (int col = 0; col < 40; col++) { // for each column
dstRect.x = col * 7; dstRect.x = col * 7;
for (int line=lineLimit; line<24; line++){ // for each row for (int line = firstLine; line < 24; line++) { // for each row
dstRect.y = line * 8; dstRect.y = line * 8;
glyph = ram[vRamBase + offsetGR[line] + col]; // read video memory glyph = ram[vRamBase + offsetGR[line] + col]; // read video memory
if (glyph > 0x7F) glyphAttr = A_NORMAL; // is NORMAL ? if (glyph > 0x7F) glyphAttr = A_NORMAL; // is NORMAL ?
else if (glyph < 0x40) glyphAttr = A_INVERSE; // is INVERSE ? else if (glyph < 0x40) glyphAttr = A_INVERSE; // is INVERSE ?
else glyphAttr = A_FLASH; // it's FLASH ! else glyphAttr = A_FLASH; // it's FLASH !
glyph &= 0x7F; // unset bit 7 if (glyphAttr==A_FLASH || TextCache[line][col]!=glyph || !flashCycle){
TextCache[line][col] = glyph;
glyph &= 0x7F; // unset bit 7
if (glyph > 0x5F) glyph &= 0x3F; // shifts to match if (glyph > 0x5F) glyph &= 0x3F; // shifts to match
if (glyph < 0x20) glyph |= 0x40; // the ASCII codes if (glyph < 0x20) glyph |= 0x40; // the ASCII codes
if (glyphAttr == A_NORMAL || (glyphAttr == A_FLASH && frame < 15)) if (glyphAttr==A_NORMAL || (glyphAttr==A_FLASH && flashCycle<15))
SDL_RenderCopy(rdr, normCharTexture, &charRects[glyph], &dstRect); SDL_RenderCopy(rdr, normCharTexture, &charRects[glyph], &dstRect);
else else
SDL_RenderCopy(rdr, revCharTexture, &charRects[glyph], &dstRect); SDL_RenderCopy(rdr, revCharTexture, &charRects[glyph], &dstRect);
} }
} }
} }
}
//====================================================== DISPLAY DISK STATUS //====================================================== DISPLAY DISK STATUS
@ -788,27 +890,21 @@ int main(int argc, char *argv[]){
SDL_SetRenderDrawColor(rdr, 255, 0, 0, 85); // red for writes SDL_SetRenderDrawColor(rdr, 255, 0, 0, 85); // red for writes
else else
SDL_SetRenderDrawColor(rdr, 0, 255, 0, 85); // green for reads SDL_SetRenderDrawColor(rdr, 0, 255, 0, 85); // green for reads
SDL_RenderFillRect(rdr, &drvRect[curDrv]); // square actually SDL_RenderFillRect(rdr, &drvRect[curDrv]); // square actually
} }
//========================================================= SDL RENDER FRAME //========================================================= SDL RENDER FRAME
if (++frame > 30) frame = 0; if (++flashCycle == 30) // increase cursor flash cycle
flashCycle = 0; // reset to zero every half second
frameTime = SDL_GetTicks() - frameStart; // frame duration
if (frameTime < frameDelay){ // do we have time ?
SDL_Delay(frameDelay - frameTime); // wait 'vsync'
SDL_RenderPresent(rdr); // swap buffers SDL_RenderPresent(rdr); // swap buffers
frameTime = SDL_GetTicks() - frameStart; // update frameTime
} // else skip the frame
fps = 1000.0 / frameTime; // calculate the actual frame rate
} // while (running) } // while (running)
//================================================ RELEASE RESSOURSES AND EXIT //================================================ RELEASE RESSOURSES AND EXIT
SDL_AudioQuit(); SDL_AudioQuit();
SDL_Quit(); SDL_Quit();
return(0); return 0;
} }

8
reinetteII+.rc
View File

@ -1,7 +1,7 @@
1 ICON "assets/reinetteII+.ico" 1 ICON "assets/reinetteII+.ico"
1 VERSIONINFO 1 VERSIONINFO
FILEVERSION 0,4,1,0 FILEVERSION 0,4,8,0
PRODUCTVERSION 0,4,0,0 PRODUCTVERSION 0,4,8,0
BEGIN BEGIN
BLOCK "StringFileInfo" BLOCK "StringFileInfo"
BEGIN BEGIN
@ -9,12 +9,12 @@ BEGIN
BEGIN BEGIN
VALUE "CompanyName", "Arthur Ferreira" VALUE "CompanyName", "Arthur Ferreira"
VALUE "FileDescription", "Apple II+ emulator" VALUE "FileDescription", "Apple II+ emulator"
VALUE "FileVersion", "0.4.1.0" VALUE "FileVersion", "0.4.8.0"
VALUE "InternalName", "reinette II plus" VALUE "InternalName", "reinette II plus"
VALUE "LegalCopyright", "Arthur Ferreira" VALUE "LegalCopyright", "Arthur Ferreira"
VALUE "OriginalFilename", "reinetteII+.exe" VALUE "OriginalFilename", "reinetteII+.exe"
VALUE "ProductName", "reinette II plus" VALUE "ProductName", "reinette II plus"
VALUE "ProductVersion", "0.4" VALUE "ProductVersion", "0.4.8.0"
END END
END END
BLOCK "VarFileInfo" BLOCK "VarFileInfo"

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