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Merge pull request #1453 from TomHarte/AbsentBits

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Correct status unset-bit masks.
This commit is contained in:
Thomas Harte
2025-01-11 22:58:42 -05:00
committed by GitHub
parent eb763ed82c 2b28df280e
commit 407a6f5e31
2 changed files with 2 additions and 2 deletions
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2
Machines/Commodore/Plus4/Interrupts.hpp
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@@ -32,7 +32,7 @@ public:
};
uint8_t status() const {
return status_ | ((status_ & mask_) ? 0x80 : 0x00) | 0x21;
return status_ | ((status_ & mask_) ? 0x80 : 0x00) | 0x25;
}
uint8_t mask() const {

2
Machines/Commodore/Plus4/Plus4.cpp
View File

@@ -378,7 +378,7 @@ public:
} break;
case 0xff09: *value = interrupts_.status(); break;
case 0xff0a:
*value = interrupts_.mask() | video_.read<0xff0a>() | 0x60;
*value = interrupts_.mask() | video_.read<0xff0a>() | 0xa0;
break;
case 0xff0b: *value = video_.read<0xff0b>(); break;
case 0xff0c: *value = video_.read<0xff0c>(); break;