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author hap <happppp@users.noreply.github.com>2020-03-01 13:29:33 +0100
committer hap <happppp@users.noreply.github.com>2020-03-01 13:29:47 +0100
commitb48b0cb47c204950432ffa6867b9e1bd63370641 (patch)
tree00996f647a9ce8bfc3a817d3cc6ba86d0fe81c63
parent7b5219935aa4cedd293013110ef6030e224c4b61 (diff)
screen: add note (nw)
-rw-r--r--src/emu/screen.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/emu/screen.cpp b/src/emu/screen.cpp
index 14ca9d7b947..94c3f796a1d 100644
--- a/src/emu/screen.cpp
+++ b/src/emu/screen.cpp
@@ -1794,7 +1794,8 @@ bool screen_device::update_quads()
void screen_device::update_burnin()
{
-// TODO: other than being unnecessary (we should use our rand function first off), this is a simplification of how analog signals really works!
+// TODO: other than being unnecessary, this is a simplification of how analog signals really works!
+// It's important not to use machine().rand() here, it can cause machine().rand() used in emulation to desync.
#undef rand
if (!m_burnin.valid())
return;