From 30f3a65e2de99cdffd091289b4edb8e14be9032d Mon Sep 17 00:00:00 2001
From: user <user@clank>
Date: Thu, 16 Jul 2026 16:17:02 +0200
Subject: sh: handle backspace in readline; prompt is now '#'

readc() returning $08/$7F now drops the last char from the command buffer
(and emits one $08 so the terminal erases it) instead of storing the raw
byte. Previously "lz<bksp>s" left the buffer as "lz\x08s", so the command
"ls" was reported "not found" even though the screen showed "ls".
Also change the shell prompt from '$' to '#'.

osk: B button types the selected key SHIFTED (uppercase a-z). A types the
key as shown (lowercase/digit/symbol); B on a letter subtracts 32 for the
uppercase glyph (the font already has A-Z). Non-letters are unchanged.
---
 src/osk.asm | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'src/osk.asm')

diff --git a/src/osk.asm b/src/osk.asm
index 490a402..02700c6 100644
--- a/src/osk.asm
+++ b/src/osk.asm
@@ -337,9 +337,22 @@ osk_handle::
     bit 4, a
     call nz, osk_right
     ld a, [wPadNew]
-    bit 0, a                    ; A: type the selected key
+    bit 0, a                    ; A: type the key as shown
+    jr z, .chkb
+    call osk_selected
+    scf
+    ret
+.chkb
+    ld a, [wPadNew]
+    bit 1, a                    ; B: type the key SHIFTED (uppercase a-z)
     jr z, .none
     call osk_selected
+    cp "a"
+    jr c, .shifted
+    cp "z"+1
+    jr nc, .shifted
+    sub 32                      ; 'a'..'z' -> 'A'..'Z'
+.shifted
     scf
     ret
 .none
-- 
cgit v1.3.1-sl0p