From ebbc11993b1bac378da8e6f8462302c3a0bc9b3e Mon Sep 17 00:00:00 2001
From: folkert van heusden <mail@vanheusden.com>
Date: Sat, 25 Mar 2023 13:21:51 +0100
Subject: [PATCH] cls/serspd commands

---
 ESP32/main.ino |  6 ++++++
 debugger.cpp   | 24 ++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/ESP32/main.ino b/ESP32/main.ino
index 18c0b7a..b471238 100644
--- a/ESP32/main.ino
+++ b/ESP32/main.ino
@@ -311,6 +311,10 @@ void start_network(console *const c) {
 	c->put_string_lf(format("Local IP address: %s", WiFi.localIP().toString().c_str()));
 }
 
+void set_tty_serial_speed(const int bps) {
+	Serial_RS232.begin(bps);
+}
+
 void setup() {
 	Serial.begin(115200);
 
@@ -340,6 +344,8 @@ void setup() {
 	constexpr uint32_t hwSerialConfig = SERIAL_8N1;
 	Serial_RS232.begin(115200, hwSerialConfig, 16, 17);
 	Serial_RS232.setHwFlowCtrlMode(0);
+	const char clear_screen = 12;
+	Serial_RS232.print(clear_screen);
 	Serial_RS232.println(F("Console enabled on TTY"));
 
 	std::vector<Stream *> serial_ports { &Serial_RS232, &Serial };
diff --git a/debugger.cpp b/debugger.cpp
index f9ace57..0d9559a 100644
--- a/debugger.cpp
+++ b/debugger.cpp
@@ -16,6 +16,8 @@ void configure_disk(console *const c);
 void configure_network(console *const c);
 void check_network(console *const c);
 void start_network(console *const c);
+
+void set_tty_serial_speed(const int bps);
 #endif
 
 // returns size of instruction (in bytes)
@@ -376,9 +378,29 @@ void debugger(console *const cnsl, bus *const b, std::atomic_uint32_t *const sto
 		else if (cmd == "startnet") {
 			start_network(cnsl);
 
+			continue;
+		}
+		else if (parts.at(0) == "serspd") {
+			if (parts.size() == 2) {
+				int speed = std::stoi(parts.at(1), nullptr, 10);
+				set_tty_serial_speed(speed);
+
+				cnsl->put_string_lf(format("Set baudrate to %d", speed));
+			}
+			else {
+				cnsl->put_string_lf("serspd requires an (decimal) parameter");
+			}
+
 			continue;
 		}
 #endif
+		else if (cmd == "cls") {
+			const char cls[] = { 12, 0 };
+
+			cnsl->put_string_lf(cls);
+
+			continue;
+		}
 		else if (cmd == "turbo") {
 			turbo = !turbo;
 
@@ -409,11 +431,13 @@ void debugger(console *const cnsl, bus *const b, std::atomic_uint32_t *const sto
 			cnsl->put_string_lf("setpc         - set PC to value");
 			cnsl->put_string_lf("setmem        - set memory (a=) to value (v=), both in octal, one byte");
 			cnsl->put_string_lf("toggle        - set switch (s=, 0...15 (decimal)) of the front panel to state (t=, 0 or 1)");
+			cnsl->put_string_lf("cls           - clear screen");
 #if defined(ESP32)
 			cnsl->put_string_lf("cfgnet        - configure network (e.g. WiFi)");
 			cnsl->put_string_lf("startnet      - start network");
 			cnsl->put_string_lf("chknet        - check network status");
 			cnsl->put_string_lf("cfgdisk       - configure disk");
+			cnsl->put_string_lf("serspd        - set serial speed in bps (8N1 are default)");
 #endif
 
 			continue;