better handling of the cursor, use kernal function to read key, not the UART directly

2025-06-25 21:39:03 +02:00
parent ef1b101538
commit a7e509cd43
7 changed files with 66 additions and 73 deletions
--- a/libsrc/c65/cgetc.s
+++ b/libsrc/c65/cgetc.s
@@ -0,0 +1,32 @@
+
+
+        .include    "cbm_kernal.inc"
+        .import     cursor
+        .export     _cgetc
+_cgetc:
+
+        lda cursor
+        beq nocursor
+
+        ; enable the cursor
+        clc
+        jsr CURSOR
+
+nocursor:
+        ; wait for a key
+       ; FIXME: is $d610 mega65 specific?
+:
+        lda $d610
+        beq :-
+
+        jsr KBDREAD
+
+        pha
+        ; disable the cursor
+        sec
+        jsr CURSOR
+
+        pla
+        ldx #0
+        rts
+