Changeset e8a9dc3 in mainline for arch

Timestamp:

2005-12-10T16:37:20Z (20 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e5fcf00

Parents:

f7f6f25

Message:

Added support for backspace

• printing '\b' should move the cursor one char to the left
• backspace key should return '\b' to application

Location:

arch

Files:

• ia32/src/drivers/ega.c (modified) (1 diff)
• ia32/src/drivers/i8042.c (modified) (1 diff)
• mips32/src/drivers/arc.c (modified) (1 diff)
• mips32/src/drivers/msim.c (modified) (2 diffs)

arch/ia32/src/drivers/ega.c

@@ -100 +100 @@
 
         switch (ch) {
-            case '\n':
+        case '\n':
                 ega_cursor = (ega_cursor + ROW) - ega_cursor % ROW;
                 break;
-            case '\t':
+        case '\t':
                 ega_cursor = (ega_cursor + 8) - ega_cursor % 8;
                 break; 
-            default:
+        case '\b':
+                if (ega_cursor % ROW)
+                        ega_cursor--;
+                break;
+        default:
                 ega_display_char(ch);
                 ega_cursor++;

arch/ia32/src/drivers/i8042.c

@@ -82 +82 @@
         SPECIAL, /* 0x01 - Esc */
         '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=',
-        SPECIAL, /* 0x0e - Backspace */
+        '\b', /* 0x0e - Backspace */
         '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
         SPECIAL, /* 0x1d - LCtrl */

arch/mips32/src/drivers/arc.c

@@ -210 +210 @@
         if (ch == '\r')
                 ch = '\n';
-
+        if (ch == 0x7f)
+                ch = '\b';
+        
         chardev_push_character(&console, ch);
 }

arch/mips32/src/drivers/msim.c

@@ -62 +62 @@
 }
 
+#include <print.h>
 /** Process keyboard interrupt. */
 static void msim_interrupt(int n, void *stack)
@@ -70 +71 @@
         if (ch =='\r')
                 ch = '\n';
+        if (ch == 0x7f)
+                ch = '\b';
         chardev_push_character(&console, ch);
 }