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| author | Simon Howard | 2009-08-29 21:26:43 +0000 |
|---|---|---|
| committer | Simon Howard | 2009-08-29 21:26:43 +0000 |
| commit | a10180a460f6425cd308719584aa58ab4fcb63fb (patch) | |
| tree | 1a77550555077e375811fcd2027c48e3c2cc9b73 /opl/examples | |
| parent | 9cc843c60027cb9365f3eaae3028343769d17a26 (diff) | |
| download | chocolate-doom-a10180a460f6425cd308719584aa58ab4fcb63fb.tar.gz chocolate-doom-a10180a460f6425cd308719584aa58ab4fcb63fb.tar.bz2 chocolate-doom-a10180a460f6425cd308719584aa58ab4fcb63fb.zip | |
Use OPL_Delay to wait 1ms for timer to expire when doing OPL detect.
Subversion-branch: /branches/opl-branch
Subversion-revision: 1638
Diffstat (limited to 'opl/examples')
| -rw-r--r-- | opl/examples/droplay.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/opl/examples/droplay.c b/opl/examples/droplay.c index 4c2fc2f8..d53a427b 100644 --- a/opl/examples/droplay.c +++ b/opl/examples/droplay.c @@ -81,11 +81,16 @@ int DetectOPL(void) WriteReg(OPL_REG_TIMER_CTRL, 0x60); WriteReg(OPL_REG_TIMER_CTRL, 0x80); + val1 = OPL_ReadPort(OPL_REGISTER_PORT) & 0xe0; + WriteReg(OPL_REG_TIMER1, 0xff); WriteReg(OPL_REG_TIMER_CTRL, 0x21); - OPL_Delay(50); + + OPL_Delay(1); + val2 = OPL_ReadPort(OPL_REGISTER_PORT) & 0xe0; + WriteReg(OPL_REG_TIMER_CTRL, 0x60); WriteReg(OPL_REG_TIMER_CTRL, 0x80); |