Make some attempt to use the JSON tests.

OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj

@@ -946,6 +946,7 @@
 		4BBB70A5202011C2002FE009 /* MultiMediaTarget.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BBB70A3202011C2002FE009 /* MultiMediaTarget.cpp */; };
 		4BBB70A8202014E2002FE009 /* MultiProducer.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BBB70A6202014E2002FE009 /* MultiProducer.cpp */; };
 		4BBB70A9202014E2002FE009 /* MultiProducer.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BBB70A6202014E2002FE009 /* MultiProducer.cpp */; };
+		4BBB77DD2867EBB300D335A1 /* IIgs Memory Map in Resources */ = {isa = PBXBuildFile; fileRef = 4BBB77DC2867EBB300D335A1 /* IIgs Memory Map */; };
 		4BBC951E1F368D83008F4C34 /* i8272.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BBC951C1F368D83008F4C34 /* i8272.cpp */; };
 		4BBF49AF1ED2880200AB3669 /* FUSETests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4BBF49AE1ED2880200AB3669 /* FUSETests.swift */; };
 		4BBFBB6C1EE8401E00C01E7A /* ZX8081.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4BBFBB6A1EE8401E00C01E7A /* ZX8081.cpp */; };
@@ -2009,6 +2010,7 @@
 		4BBB70A3202011C2002FE009 /* MultiMediaTarget.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = MultiMediaTarget.cpp; sourceTree = "<group>"; };
 		4BBB70A6202014E2002FE009 /* MultiProducer.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = MultiProducer.cpp; sourceTree = "<group>"; };
 		4BBB70A7202014E2002FE009 /* MultiProducer.hpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.h; path = MultiProducer.hpp; sourceTree = "<group>"; };
+		4BBB77DC2867EBB300D335A1 /* IIgs Memory Map */ = {isa = PBXFileReference; lastKnownFileType = folder; path = "IIgs Memory Map"; sourceTree = "<group>"; };
 		4BBC951C1F368D83008F4C34 /* i8272.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = i8272.cpp; sourceTree = "<group>"; };
 		4BBC951D1F368D83008F4C34 /* i8272.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = i8272.hpp; sourceTree = "<group>"; };
 		4BBF49AE1ED2880200AB3669 /* FUSETests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = FUSETests.swift; sourceTree = "<group>"; };
@@ -2462,6 +2464,7 @@
 		4B1414631B588A1100E04248 /* Test Binaries */ = {
 			isa = PBXGroup;
 			children = (
+				4BBB77DC2867EBB300D335A1 /* IIgs Memory Map */,
 				4B7C7A06282C3DED002D6C0B /* flamewing 68000 BCD tests */,
 				4B680CE323A555CA00451D43 /* 68000 Comparative Tests */,
 				4B75F97A280D7C7700121055 /* 68000 Decoding */,
@@ -5401,6 +5404,7 @@
 				4B8DF62F2550D91600F3433C /* CPUCMP-trace_compare.log in Resources */,
 				4B8DF6412550D91600F3433C /* CPUROR.sfc in Resources */,
 				4BB299691B587D8400A49093 /* irq in Resources */,
+				4BBB77DD2867EBB300D335A1 /* IIgs Memory Map in Resources */,
 				4B8DF6962550D91700F3433C /* CPUJMP.sfc in Resources */,
 				4BB299851B587D8400A49093 /* ldyzx in Resources */,
 				4BB299F31B587D8400A49093 /* trap7 in Resources */,

OSBindings/Mac/Clock SignalTests/IIgsMemoryMapTests.mm

@@ -228,4 +228,62 @@ namespace {
 	}
 }
 
+- (void)testJSONExamples {
+	NSArray<NSDictionary *> *const tests =
+		[NSJSONSerialization JSONObjectWithData:
+			[NSData dataWithContentsOfURL:
+				[[NSBundle bundleForClass:[self class]]
+					URLForResource:@"mm"
+					withExtension:@"json"
+					subdirectory:@"IIgs Memory Map"]]
+		options:0
+		error:nil];
+
+	int testNumber = 1;
+	for(NSDictionary *test in tests) {
+		NSLog(@"Test %d", testNumber);
+		++testNumber;
+
+		// Apply state.
+		const bool highRes = [test[@"hires"] boolValue];
+		const bool lcw = [test[@"lcw"] boolValue];
+		const bool store80 = [test[@"80store"] boolValue];
+		const uint8_t shadow = [test[@"shadow"] integerValue];
+		const uint8_t state = [test[@"state"] integerValue];
+
+		_memoryMap.access(0x56 + highRes, false);
+		_memoryMap.access(0x80 + lcw, false);
+		_memoryMap.access(0x00 + store80, false);
+		_memoryMap.set_shadow_register(shadow);
+		_memoryMap.set_state_register(state);
+
+		// Test results.
+		for(NSArray<NSNumber *> *region in test[@"read"]) {
+			const auto logicalStart = [region[0] intValue];
+			const auto logicalEnd = [region[1] intValue];
+			const auto physicalStart = [region[2] intValue];
+			const auto physicalEnd = [region[3] intValue];
+
+			if(physicalEnd == physicalStart && physicalStart == 0) {
+				continue;
+			}
+
+			// Test read pointers.
+			int physical = physicalStart;
+			for(int logical = logicalStart; logical < logicalEnd; logical++) {
+				const auto &region = _memoryMap.regions[_memoryMap.region_map[logical]];
+
+				XCTAssert(region.read != nullptr);
+				XCTAssert(&region.read[logical << 8] == &_ram[physical << 8],
+					@"Physical page %04x should be mapped to logical %04x; is instead %04x",
+						physical,
+						logical,
+						int(&region.read[logical << 8] - _ram.data()) >> 8);
+
+				if(physical != physicalEnd) ++physical;
+			}
+		}
+	}
+}
+
 @end