basic executable loading

2 files changed, 34 insertions, 0 deletions

diff --git a/src/init/linker.ld b/src/init/linker.ld
new file mode 100644
index 0000000..9f3f4b5
--- /dev/null
+++ b/src/init/linker.ld
@@ -0,0 +1,24 @@
+ENTRY(main)
+OUTPUT_FORMAT("binary")
+
+SECTIONS
+{
+	. = 2M;
+	.text BLOCK(4K) : ALIGN(4K)
+	{
+		*(.text)
+	}
+	.rodata BLOCK(4K) : ALIGN(4K)
+	{
+		*(.rodata)
+	}
+	.data BLOCK(4K) : ALIGN(4K)
+	{
+		*(.data)
+	}
+	.bss BLOCK(4K) : ALIGN(4K)
+	{
+		*(COMMON)
+		*(.bss)
+	}
+}
diff --git a/src/init/main.c b/src/init/main.c
new file mode 100644
index 0000000..e6188ac
--- /dev/null
+++ b/src/init/main.c
@@ -0,0 +1,10 @@
+#include <stdint.h>
+
+int main() {
+	// change the colors of VGA text
+	// doesn't require a lot of code, but still shows that it's working
+	uint8_t *vga = (void*) 0xB8000;
+	for (int i = 0; i < 80 * 25; i++)
+		vga[(i << 1) + 1] = 0x4e;
+	for (;;);
+}