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Adds anti-IO protection.

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This commit is contained in:
Thomas Harte 2020-12-06 21:46:04 -05:00
parent fd3760cedc
commit 9062e80e9d
1 changed files with 10 additions and 1 deletions
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11
OSBindings/Mac/Clock SignalTests/IIgsMemoryMapTests.mm
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@ -31,6 +31,7 @@ namespace {
- (void)write:(uint8_t)value address:(uint32_t)address { - (void)write:(uint8_t)value address:(uint32_t)address {
const auto &region = MemoryMapRegion(_memoryMap, address); const auto &region = MemoryMapRegion(_memoryMap, address);
XCTAssertFalse(region.flags & MemoryMap::Region::IsIO);
MemoryMapWrite(_memoryMap, region, address, &value); MemoryMapWrite(_memoryMap, region, address, &value);
} }
@ -101,11 +102,19 @@ namespace {
_memoryMap.set_shadow_register(0x00); _memoryMap.set_shadow_register(0x00);
// Establish a different value in bank $e1, then write // Establish a different value in bank $e1, then write
// to bank $00 and check bank $e1. // to bank $00 and check banks $01 and $e1.
[self write: 0xcb address:0xe1'0400]; [self write: 0xcb address:0xe1'0400];
[self write: 0xde address:0x00'0400]; [self write: 0xde address:0x00'0400];
XCTAssertEqual([self readAddress:0xe1'0400], 0xde); XCTAssertEqual([self readAddress:0xe1'0400], 0xde);
XCTAssertEqual([self readAddress:0x01'0400], 0xde);
// Reset the $e1 page version and check all three detinations.
[self write: 0xcb address:0xe1'0400];
XCTAssertEqual([self readAddress:0xe1'0400], 0xcb);
XCTAssertEqual([self readAddress:0x00'0400], 0xde);
XCTAssertEqual([self readAddress:0x01'0400], 0xde);
} }
@end @end