clean-up of driver return codes

2023-02-26 20:03:41 +01:00
parent a299ef4210
commit ffa83c32a4
82 changed files with 438 additions and 322 deletions
--- a/libsrc/c64/joy/c64-numpad.s
+++ b/libsrc/c64/joy/c64-numpad.s
@@ -100,12 +100,14 @@ masktable:
 ;

 INSTALL:
-        lda     #JOY_ERR_OK             ; Assume we have a joystick
-        ldx     VIC_CLK_128             ; Test for a C128
-        cpx     #$FF
+        lda     #JOY_ERR_OK             ; Assume we have a "joystick"
+        .assert JOY_ERR_OK = 0, error
+        tax                             ; Set high byte
+        ldy     VIC_CLK_128             ; Test for a C128
+        cpy     #$FF
        bne     @C128                   ; Jump if we have one
        lda     #JOY_ERR_NO_DEVICE      ; No C128 -> no numpad
-@C128:  ldx     #0                      ; Set high byte
+@C128:

 ;       rts                     ; Run into UNINSTALL instead