From 60699af63f92f43cc4b4b9e3050fcdd2a8468281 Mon Sep 17 00:00:00 2001
From: Andrew Opalach <andrew@akon.city>
Date: Wed, 10 Apr 2019 15:14:00 -0400
Subject: add opengl fronend, remove sdl frontend, refactor build system

---
 .../CEdev/examples/hello_world/src/main.c          | 48 ++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 frontends/calculator/CEdev/examples/hello_world/src/main.c

(limited to 'frontends/calculator/CEdev/examples/hello_world/src')

diff --git a/frontends/calculator/CEdev/examples/hello_world/src/main.c b/frontends/calculator/CEdev/examples/hello_world/src/main.c
new file mode 100644
index 0000000..333dcdc
--- /dev/null
+++ b/frontends/calculator/CEdev/examples/hello_world/src/main.c
@@ -0,0 +1,48 @@
+/* Keep these headers */
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <tice.h>
+
+/* Standard headers */
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Put function prototypes here */
+void printText(const char *text, uint8_t x, uint8_t y);
+void printTextSmall(const char *text, uint8_t xpos, uint8_t ypos);
+
+/* Put all your code here */
+void main(void) {
+    /* uint8_t is an unsigned integer that can range from 0-255. */
+    /* It performs faster than just an int, so try to use it (or int8_t) when possible */
+    uint8_t count;
+
+    /* Initialize some strings */
+    const char *HelloWorld = "Hello World!";
+    const char *Welcome = "Welcome to C!";
+
+    /* Clear the homescreen */
+    os_ClrHome();
+
+    /* Print a few strings */
+    printText(HelloWorld, 0, 0);
+    printText(Welcome, 0, 1);
+
+    /* Wait for a key press */
+    while (!os_GetCSC());
+}
+
+/* Draw text on the homescreen at the given X/Y location */
+void printText(const char *text, uint8_t xpos, uint8_t ypos) {
+    os_SetCursorPos(ypos, xpos);
+    os_PutStrFull(text);
+}
+
+/* Draw small text at the given X/Y location */
+void printTextSmall(const char *text, uint8_t xpos, uint8_t ypos) {
+    os_FontSelect(0); // sets small font (1 == big, see docs)
+    os_FontDrawText(text, xpos, ypos);
+}
-- 
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