Rename c1p target to osic1p

2015-02-03 22:42:35 +01:00
parent 19b3c1b32b
commit 14c7e9fd16
28 changed files with 18 additions and 112 deletions
--- a/libsrc/osic1p/cgetc.s
+++ b/libsrc/osic1p/cgetc.s
@@ -0,0 +1,29 @@
+;
+; char cgetc (void);
+;
+        .export         _cgetc
+        .import         cursor
+
+        .include        "osic1p.inc"
+        .include        "extzp.inc"
+
+; Input routine from 65V PROM MONITOR, show cursor if enabled
+_cgetc:
+        lda     cursor          ; show cursor?
+        beq     nocursor
+        ldy     CURS_X
+        lda     (SCREEN_PTR),y  ; fetch current character
+        sta     CURS_SAV        ; save it
+        lda     #$A1            ; full white square
+        sta     (SCREEN_PTR),y  ; store at cursor position
+nocursor:
+        jsr     INPUTC
+        pha                     ; save retrieved character
+        lda     cursor          ; was cursor on?
+        beq     nocursor2
+        lda     CURS_SAV        ; fetch saved character
+        ldy     CURS_X
+        sta     (SCREEN_PTR),y  ; store at cursor position
+nocursor2:
+        pla                     ; restore retrieved character
+        rts