Incorporated another round of feedback for pull request.

Adjusted comment formatting in several assembler files.
Removed dummy kbhit() function, as it's better to get a linker
error than an implementation that does the wrong thing.

libsrc/osic1p/clrscr.s

@@ -12,7 +12,7 @@
 BANKS = VIDEORAMSIZE / $100
 
 _clrscr:
-        lda       #$20 ;' '
+        lda       #$20          ; ' '
         ldy       #BANKS
         ldx       #$00
 staloc:
@@ -22,10 +22,10 @@ staloc:
         inc       staloc+2
         dey
         bne       staloc
-        lda       #>(SCRNBASE); load high byte
-        sta       staloc+2    ; restore base address
+        lda       #>(SCRNBASE)  ; Load high byte
+        sta       staloc+2      ; Restore base address
 
-        lda       #$00        ; cursor in upper left corner
+        lda       #$00          ; Cursor in upper left corner
         sta       CURS_X
         sta       CURS_Y
-        jmp       plot        ; Set the cursor position
+        jmp       plot          ; Set the cursor position