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Fix ATIRage I/O accesses.

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- Don't log anything if the I/O access is not for this device. A different device might handle it.
- Don't return true for I/O access if an I/O access is not performed. Otherwise the I/O access won't be passed to other devices.
This commit is contained in:
joevt 2023-02-05 00:47:57 -08:00
parent f7280c316b
commit fd2e6c5b09
1 changed files with 5 additions and 9 deletions
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14
devices/video/atirage.cpp
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@ -348,17 +348,13 @@ void ATIRage::write_reg(uint32_t offset, uint32_t value, uint32_t size)
}
bool ATIRage::io_access_allowed(uint32_t offset) {
if (!(this->command & 1)) {
if (offset >= this->io_base && offset < (this->io_base + 0x100)) {
if (this->command & 1) {
return true;
}
LOG_F(WARNING, "ATI I/O space disabled in the command reg");
return false;
}
if (offset < this->io_base || offset > (this->io_base + 0x100)) {
LOG_F(WARNING, "Rage: I/O out of range, base=0x%X, offset=0x%X", io_base, offset);
return false;
}
return true;
return false;
}