README.md

@@ -11,7 +11,6 @@ Sample Applications
 - [Pacman](https://github.com/jscrane/pacman)
 - [Commodore PET](https://github.com/jscrane/PET)
 - [Compukit UK101](https://github.com/jscrane/UK101)
-- [Commodore Chessmate](https://github.com/jscrane/Chessmate)
 
 Configuration for Arduino
 --------------
@@ -52,5 +51,5 @@ ESP8266 board, e.g., [WeMOS](https://www.wemos.cc/en/latest/d1/d1_mini.html), _o
 ESP32-based board, e.g., [Node32s](https://www.esp32.com/viewtopic.php?t=459),
 - An SD drive to store programs (for Stellarpad),
 - A 23k256 SPI RAM chip (for Stellarpad, optional),
-- A supported TFT screen (if not using a board with VGA),
+- A supported TFT screen, such as [this one](http://forum.stellarisiti.com/topic/626-ssd1289-32-320x240-tft-16bit-parallel-interface-touch-libraries/),
 - A PS/2 keyboard.

display.cpp

@@ -63,8 +63,10 @@ void Display::begin(colour_t bg, colour_t fg, orientation_t orient, unsigned dis
 	_dx -= _xoff;
 	_dy -= _yoff;
 
-	DBG(printf("xoff %d yoff %d dx %d dy %d", _xoff, _yoff, _dx, _dy));
-	DBG(println());
+#if defined(DEBUGGING)
+	Serial.printf("xoff %d yoff %d dx %d dy %d", _xoff, _yoff, _dx, _dy);
+	Serial.println();
+#endif
 }
 
 void Display::begin(colour_t bg, colour_t fg, orientation_t orient) {
@@ -74,7 +76,6 @@ void Display::begin(colour_t bg, colour_t fg, orientation_t orient) {
 
 #if defined(USE_UTFT)
 	utft.InitLCD(orient);
-	utft.setBackColor(_bg);
 	_dx = utft.getDisplayXSize();
 	_dy = utft.getDisplayYSize();
 
@@ -108,7 +109,11 @@ void Display::begin(colour_t bg, colour_t fg, orientation_t orient) {
 	_dx = canvas.getWidth();
 	_dy = canvas.getHeight();
 
-	DBG(printf("w %d h %d\r\n", _dx, _dy));
+
+#if defined(DEBUGGING)
+	Serial.printf("w %d h %d", _dx, _dy);
+	Serial.println();
+#endif
 #endif
 
 	setColor(fg);
@@ -168,90 +173,17 @@ void Display::drawPixel(unsigned x, unsigned y, colour_t col) {
 #endif
 }
 
-void Display::drawLine(unsigned x1, unsigned y1, unsigned x2, unsigned y2, colour_t col) {
-	x1 += _xoff;
-	y1 += _yoff;
-	x2 += _xoff;
-	y2 += _yoff;
-#if defined(USE_UTFT)
-	utft.setColor(col);
-	utft.drawLine(x1, y1, x2, y2);
-#elif defined(USE_ESPI)
-	espi.drawLine(x1, y1, x2, y2, col);
-#elif defined(USE_VGA)
-	canvas.setPenColor(rgb(col));
-	canvas.drawLine(x1, y1, x2, y2);
-#endif
-}
-
-void Display::drawCircle(unsigned x, unsigned y, unsigned r, colour_t col) {
+void Display::drawString(const char *s, unsigned x, unsigned y) {
 	x += _xoff;
 	y += _yoff;
 #if defined(USE_UTFT)
-	utft.setColor(col);
-	utft.drawCircle(x, y, r);
-#elif defined(USE_ESPI)
-	espi.drawCircle(x, y, r, col);
-#elif defined(USE_VGA)
-	canvas.setPenColor(rgb(col));
-	canvas.drawEllipse(x, y, r, r);
-#endif
-}
-
-void Display::fillCircle(unsigned x, unsigned y, unsigned r, colour_t col) {
-	x += _xoff;
-	y += _yoff;
-#if defined(USE_UTFT)
-	utft.setColor(col);
-	utft.fillCircle(x, y, r);
-#elif defined(USE_ESPI)
-	espi.fillCircle(x, y, r, col);
-#elif defined(USE_VGA)
-	canvas.setBrushColor(rgb(col));
-	canvas.fillEllipse(x, y, r, r);
-#endif
-}
-
-void Display::drawRectangle(unsigned x, unsigned y, unsigned w, unsigned h, colour_t col) {
-	x += _xoff;
-	y += _yoff;
-#if defined(USE_UTFT)
-	utft.setColor(col);
-	utft.drawRect(x, y, x+w, y+h);
-#elif defined(USE_ESPI)
-	espi.drawRect(x, y, w, h, col);
-#elif defined(USE_VGA)
-	canvas.setPenColor(rgb(col));
-	canvas.drawRectangle(x, y, x+w, y+h);
-#endif
-}
-
-void Display::fillRectangle(unsigned x, unsigned y, unsigned w, unsigned h, colour_t col) {
-	x += _xoff;
-	y += _yoff;
-#if defined(USE_UTFT)
-	utft.setColor(col);
-	utft.fillRect(x, y, x+w, y+h);
-#elif defined(USE_ESPI)
-	espi.fillRect(x, y, w, h, col);
-#elif defined(USE_VGA)
-	canvas.setBrushColor(rgb(col));
-	canvas.fillRectangle(x, y, x+w, y+h);
-#endif
-}
-
-void Display::drawString(const char *s, unsigned x, unsigned y, colour_t col) {
-	x += _xoff;
-	y += _yoff;
-#if defined(USE_UTFT)
-	utft.setColor(col);
 	utft.print(s, x, y);
 #elif defined(USE_ESPI)
 	espi.setTextDatum(TL_DATUM);
-	espi.setTextColor(col, _bg, true);
+	unsigned w = espi.textWidth(s);
+	espi.fillRect(x, y, w, _cy, _bg);
 	espi.drawString(s, x, y);
 #elif defined(USE_VGA)
-	canvas.setPenColor(rgb(col));
 	canvas.drawText(x, y, s);
 #endif
 }

display.h

@@ -37,25 +37,7 @@ public:
 	void statusf(const char *fmt, ...);
 
 	void drawPixel(unsigned x, unsigned y, colour_t col);
-	void drawPixel(unsigned x, unsigned y) { drawPixel(x, y, _fg); }
-
-	void drawLine(unsigned x1, unsigned y1, unsigned x2, unsigned y2, colour_t col);
-	void drawLine(unsigned x1, unsigned y1, unsigned x2, unsigned y2) { drawLine(x1, y1, x2, y2, _fg); }
-
-	void drawCircle(unsigned x, unsigned y, unsigned r, colour_t col);
-	void drawCircle(unsigned x, unsigned y, unsigned r) { drawCircle(x, y, r, _fg); }
-
-	void fillCircle(unsigned x, unsigned y, unsigned r, colour_t col);
-	void fillCircle(unsigned x, unsigned y, unsigned r) { fillCircle(x, y, r, _fg); }
-
-	void drawRectangle(unsigned x, unsigned y, unsigned w, unsigned h, colour_t col);
-	void drawRectangle(unsigned x, unsigned y, unsigned w, unsigned h) { drawRectangle(x, y, w, h, _fg); }
-
-	void fillRectangle(unsigned x, unsigned y, unsigned w, unsigned h, colour_t col);
-	void fillRectangle(unsigned x, unsigned y, unsigned w, unsigned h) { fillRectangle(x, y, w, h, _fg); }
-
-	void drawString(const char *s, unsigned x, unsigned y, colour_t col);
-	void drawString(const char *s, unsigned x, unsigned y) { drawString(s, x, y, _fg); }
+	void drawString(const char *s, unsigned x, unsigned y);
 
 protected:
 	unsigned _bg, _fg, _cx, _cy, _dx, _dy, _oxs, _xoff, _yoff;

flash_filer.cpp

@@ -12,9 +12,7 @@
 #include "filer.h"
 #include "flash_filer.h"
 
-#if defined(USE_SPIFFS) || defined(USE_LITTLEFS)
 static File files[MAX_FILES];
-#endif
 
 #if defined(USE_SPIFFS)
 static File dir;
@@ -143,10 +141,8 @@ const char *flash_filer::checkpoint() {
 	hardware_checkpoint(file);
 	file.close();
 	start();
-	return buf;
-#else
-	return "";
 #endif
+	return buf;
 }
 
 void flash_filer::restore(const char *filename) {

hw/esp8bit.h

@@ -22,20 +22,16 @@
 #define KBD_DATA	D4
 
 // SPI-RAM
-#if !defined(NO_SPIRAM)
 #define USE_SPIRAM
 #define SPIRAM_DEV	SPI
 #define SPIRAM_CS       D0
 #define SPIRAM_SIZE	0x8000u
-#endif
 
-// flash storage
-#if !defined(NO_STORAGE)
+// "tape" storage...
 #undef USE_SD
 //#define SD_CS		D0
 #undef USE_SPIFFS
 #define USE_LITTLEFS
-#endif
 
 // sound
 #define PWM_SOUND	D2

hw/node32s-example.h

@@ -28,12 +28,10 @@
 #define KBD_DATA	34
 #define KBD_IRQ		35
 
-// Storage
-#if !defined(NO_STORAGE)
+// storage
 #undef USE_SD
 #undef USE_LITTLEFS
 #define USE_SPIFFS
-#endif
 
 // sound: dac and pwm
 #define DAC_SOUND	25

hw/stellarpad-example.h

@@ -7,15 +7,12 @@
 #define KBD_DATA	PE_4
 #define KBD_IRQ		PE_5
 
-// Storage
-#if !defined(NO_STORAGE)
+// "tape" storage...
 #define USE_SD
 #define SD_CS		PF_3
 #define SD_SPI		1
-#endif
 
 // 23k256 SPI-RAM
-#if !defined(NO_SPIRAM)
 #define USE_SPIRAM
 #define SPI_CS		PF_3
 #define SPIRAM_CS       PE_0
@@ -23,7 +20,6 @@
 #define SPIRAM_MODULE	1
 #define SPIRAM_CLKDIV	1
 #define SPIRAM_SIZE	0x8000u
-#endif
 
 // TFT display...
 // NOTE: edit memorysaver.h to select the correct chip for your display!

hw/ttgo-t7-v14-mini32.h

@@ -20,9 +20,7 @@
 #define DAC_SOUND	25
 #define PWM_SOUND	25
 
-// Storage
-#if !defined(NO_STORAGE)
+// "tape" storage...
 #undef USE_SD
 #undef USE_LITTLEFS
 #define USE_SPIFFS
-#endif

ram.h

@@ -1,10 +1,9 @@
 #ifndef __RAM_H__
 #define __RAM_H__
 
-template<unsigned n = 1024>
 class ram: public Memory::Device {
 public:
-	static const unsigned page_size = n;
+	static const unsigned page_size = 1024;
 
 	virtual void operator= (uint8_t c) { _mem[_acc] = c; }
 	virtual operator uint8_t () { return _mem[_acc]; }

sound_dac.cpp

@@ -3,9 +3,9 @@
 #include "timed.h"
 #include "sound_dac.h"
 
-#if defined(DAC_SOUND) && defined(ESP_PLATFORM)
 static DAC *s;
 
+#if defined(DAC_SOUND) && defined(ESP_PLATFORM)
 #include <driver/dac.h>
 
 static portMUX_TYPE mux = portMUX_INITIALIZER_UNLOCKED;