Fixed integer printing for negative numbers.

kernel/arch/i386/tty.nim

@@ -64,16 +64,17 @@ var parsedData = ['0','0','0','0','0','0','0','0','0','0']
 proc terminalWrite*(data: int) =
   var input = data
   var i = 0
-  if(input < 0):
-    terminalWrite('-')
   if(input == 0):
     terminalWrite('0')
-  else:
-    while(input > 0):
-      let parsedChar: char = char(48 + (input mod 10))
-      parsedData[i] = parsedChar
-      i = i + 1
-      input = input div 10
+    return
+  if(input < 0):
+    terminalWrite('-')
+    input = input * -1
+  while(input != 0):
+    let parsedChar: char = char(48 + (input mod 10))
+    parsedData[i] = parsedChar
+    i = i + 1
+    input = input div 10
   while i > 0:
     i = i - 1
     terminalWrite(parsedData[i])

kernel/kernel.nim

@@ -2,6 +2,8 @@ import tty
 
 proc kernelMain() {.exportc: "kernel_main"}=
   terminalInitialize()
-  terminalWrite("Hello World!\LNim here!\L")
-  for i in 0..10:
-    terminalWrite(i)
+  terminalWrite("Hello World!\L")
+  terminalWrite("MAX_INT:")
+  terminalWrite(high(int))
+  terminalWrite("\LMIN_INT:")
+  terminalWrite(low(int32)+1)