chris/open-roms
1
0 Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

more Kernal reorganization

Browse Source
This commit is contained in:
FeralChild64 committed 2019-10-15 17:55:56 +02:00
1 parent 076a839f1a
commit 8829ec8090
20 files changed
+2
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

c64/kernal/iostack/setmsg.s
+13
View File
@@ -0,0 +1,13 @@
//
// Official Kernal routine, described in:
//
// - [RG64] C64 Programmer's Reference Guide - page 298
// - [CM64] Compute's Mapping the Commodore 64 - page 239
//
// CPU registers that has to be preserved (see [RG64]): .A, .X, .Y
//
SETMSG:
sta MSGFLG
rts