add stub routines to unimplemented calls

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Paul Gardner-Stephen committed 2019-04-18 23:31:56 +09:30
1 parent 1370446e79
commit 5c701f8dd0
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@@ -1,2 +1,7 @@
; Function defined on pp272-273 of C64 Programmers Reference Guide
memtop:
; p288 C64 Programmer's reference guide
; but for now we only support reading it
LDX #<$9FFF
LDY #>$9FFF
rts