bputc() fix

kaleid/kernel/buf/bput.c

@@ -58,8 +58,28 @@ error_t bputc(Buffer_t *buf, uchar ch)
     // That should change; there should be a flag for it
     if (buf->flags & BF_LINE) {
 
+        // Deal with line feeds by filling the rest of the line with spaces
+        // We need a field for choosing a different filler, e.g. '\0'
+        if (ch == '\n') {
+            assert(buf->lastLF < buf->lineLen);
+            
+            // Make sure double \n's have effect
+            //if (buf->lastLF == 0) {
+            //    buf->lastLF = buf->lineLen;
+            //}
+            
+            int off = buf->lineLen - buf->lastLF;
+            while (off > 0) {
+                *buf->wp++ = ' ';
+                off--;
+            }
+
+            buf->lastLF = 0;
+            if (buf->flusher) buf->flusher(buf); 
+        }
+
         // Deal with carriage returns
-        if (ch == '\r') {
+        else if (ch == '\r') {
             buf->wp -= buf->lastLF;
             buf->lastLF = 0;
             assert(buf->wp >= buf->buf);
@@ -76,17 +96,6 @@ error_t bputc(Buffer_t *buf, uchar ch)
             if (rc > 0) return rc;
         }
 
-        // Deal with line feeds by filling the rest of the line with spaces
-        // We need a field for choosing a different filler, e.g. '\0'
-        else if (ch == '\n') {
-            assert(buf->lastLF < buf->lineLen);
-            while (buf->lastLF > 0) {
-                rc = bputc(buf, ' ');
-            }
-            if (rc > 0) return rc;
-            if (buf->flusher) buf->flusher(buf); 
-        }
-
         // Just a regular character
         else {
             // Do we have to scroll up?
@@ -113,7 +122,7 @@ error_t bputc(Buffer_t *buf, uchar ch)
                 else {
                     memcpy(buf->buf, buf->buf + bufSize,
                                      buf->size - bufSize);
-                    buf->wp -= buf->lineLen;
+                    buf->wp -= bufSize;
                 }
             }
 

kaleid/kernel/init/init.c

@@ -121,40 +121,37 @@ extern error_t IoInitVGABuffer(void);
 //
 noreturn void BtStartKern(multiboot_info_t *mbInfo, int mbMagic)
 {
+    int tmp;
+
     // We're not ready to deal with interrupts
     KeDisableIRQs();
 
     // Initialize the BootInfo_t structure
     BtInitBootInfo(mbInfo);
 
-
     // Get ready to print things
     IoInitVGABuffer();
 
-    BARRIER();
-
     // Hello world
     KernLog("%c%c%c OS/K\n\n", 219, 219, 219);
 
     KalAlwaysAssert(mbMagic == MULTIBOOT_BOOTLOADER_MAGIC);
 
+    tmp = (BtGetBootInfo(btldr).kernelEndAddr
+            - BtGetBootInfo(btldr).kernelAddr) / KB;
     KernLog("[Init] Kernel successfully loaded at %p with %x magic\n"
             "       and it uses %d Kio\n\n",
             BtGetBootInfo(btldr).kernelAddr,
-            mbMagic,
-        (BtGetBootInfo(btldr).kernelEndAddr - BtGetBootInfo(btldr).kernelAddr)
-            / KB
-            );
+            mbMagic,tmp);
 
     //Memory mapping
     MmInitMemoryMap();
 
     MmInitHeap();
 
-    BARRIER();
-
     int i = 0;
-    while(i < 517) { KernLog("%d\n", i++);}
+    while(i < 512) { KernLog("%d\n", i++);}
+    
     PsInitSched();
 
     // We're out

kaleid/kernel/io/vga.c

@@ -44,6 +44,8 @@ error_t bvgaflusher(Buffer_t *buf)
     ushort *fbp = BtGetBootInfo(video).framebufferAddr;
     const uchar color = 0xf;
 
+    assert(buf->lastLF == 0);
+
     uchar *currentLine = buf->wp - buf->lineLen;
     uchar *ptr = (uchar *)lmax((size_t)buf->buf,
                                (size_t)currentLine