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/emd/c64-ramcart.s
+++ b/libsrc/c64/emd/c64-ramcart.s
@@ -98,13 +98,13 @@ INSTALL:
        lda     #0
        sta     pagecount
        stx     pagecount+1
-        lda     #<EM_ERR_OK
-        ldx     #>EM_ERR_OK
+        .assert EM_ERR_OK = 0, error
+        tax
        rts
@notpresent:
@readonly:
-        lda     #<EM_ERR_NO_DEVICE
-        ldx     #>EM_ERR_NO_DEVICE
+        lda     #EM_ERR_NO_DEVICE
+        ldx     #0 ; return value is char
 ;       rts                             ; Run into UNINSTALL instead

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