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authorJuan J. Martinez <jjm@usebox.net>2020-12-30 19:07:31 +0000
committerJuan J. Martinez <jjm@usebox.net>2020-12-30 19:23:41 +0000
commit2682bc5d1d864341aaeb42a449db73c3ecd16d70 (patch)
tree9116764364b4ee0ce7f6037305077807b57776de /src/ubox/ubox_get_vsync_freq.z80
downloadubox-msx-lib-2682bc5d1d864341aaeb42a449db73c3ecd16d70.tar.gz
ubox-msx-lib-2682bc5d1d864341aaeb42a449db73c3ecd16d70.zip
Initial import1.0
Diffstat (limited to 'src/ubox/ubox_get_vsync_freq.z80')
-rw-r--r--src/ubox/ubox_get_vsync_freq.z809
1 files changed, 9 insertions, 0 deletions
diff --git a/src/ubox/ubox_get_vsync_freq.z80 b/src/ubox/ubox_get_vsync_freq.z80
new file mode 100644
index 0000000..681fe67
--- /dev/null
+++ b/src/ubox/ubox_get_vsync_freq.z80
@@ -0,0 +1,9 @@
+.globl _ubox_get_vsync_freq
+
+_ubox_get_vsync_freq::
+ ld a, (#0x002b)
+ and #128
+ ld l, a
+ ret z
+ ld l, #1
+ ret