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Blinks at Arbee ...

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This commit is contained in:
Angelo Salese 2013-02-20 04:54:47 +00:00
parent d69cada9e0
commit 06ea3ba833
1 changed files with 8 additions and 2 deletions
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10
src/mame/drivers/coolridr.c
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@ -1649,8 +1649,14 @@ ROM_END
/*
TODO: both irq routines writes 1 to 0x60d8894, sets up the Watchdog timer then expect that this buffer goes low IN the irq routine.
Cache issue? Shared RAM?
TODO: both irq routines writes 1 to 0x60d8894, sets up the Watchdog timer then expect that this buffer goes low IN the irq routines.
The Watchdog Timer is setted up with these params:
0xee for wtcnt
0x39 for wtcsr (enable irq (bit 5), enable timer (bit 4), clock select divider / 64 (bits 2-0))
vector is 0x7f (so VBR+0x1fc)
level is 0xf
... and indeed the Watchdog irq routine effectively clears this RAM buffer. What the manual doesn't say is that the Watchdog timer irq
presumably is an NMI if this is even possible ...
*/
READ32_MEMBER(coolridr_state::coolridr_hack2_r)
{