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Introduces basic auxiliary switch tests.

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All of which pass. Grrr.
This commit is contained in:
Thomas Harte 2020-12-11 21:30:03 -05:00
parent 159924dcc0
commit 3b2e97e77c
1 changed files with 91 additions and 0 deletions
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91
OSBindings/Mac/Clock SignalTests/IIgsMemoryMapTests.mm
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@ -137,4 +137,95 @@ namespace {
XCTAssertEqual(_ram[_ram.size() - 64*1024], 0x34);
}
- (void)testAuxiliarySwitches {
// Inhibit IO/LC 'shadowing'.
_memoryMap.set_shadow_register(0x40);
// Check that all writes and reads currently occur to main RAM.
XCTAssertEqual(_memoryMap.get_state_register() & 0xf0, 0x00);
for(int c = 0; c < 65536; c++) {
const uint8_t value = c ^ (c >> 8);
[self write:value address:c];
XCTAssertEqual(_ram[c], value);
}
// Reset.
memset(_ram.data(), 0, 128*1024);
// Set writing to auxiliary memory.
// Reading should still be from main.
_memoryMap.access(0xc005, false);
XCTAssertEqual(_memoryMap.get_state_register() & 0xf0, 0x10);
for(int c = 0x0200; c < 0xc000; c++) {
const uint8_t value = c ^ (c >> 8);
[self write:value address:c];
XCTAssertEqual(_ram[c + 64*1024], value);
XCTAssertEqual([self readAddress:c], 0);
}
// Reset.
memset(_ram.data(), 0, 128*1024);
// Switch reading and writing.
_memoryMap.access(0xc004, false);
_memoryMap.access(0xc003, false);
XCTAssertEqual(_memoryMap.get_state_register() & 0xf0, 0x20);
for(int c = 0x0200; c < 0xc000; c++) {
const uint8_t value = c ^ (c >> 8);
[self write:value address:c];
XCTAssertEqual(_ram[c], value);
XCTAssertEqual([self readAddress:c], 0);
}
// Reset.
memset(_ram.data(), 0, 128*1024);
// Test main zero page.
for(int c = 0x0000; c < 0x0200; c++) {
const uint8_t value = c ^ (c >> 8);
[self write:value address:c];
XCTAssertEqual(_ram[c], value);
XCTAssertEqual([self readAddress:c], value);
}
// Reset.
memset(_ram.data(), 0, 128*1024);
// Enable the alternate zero page.
_memoryMap.access(0xc009, false);
XCTAssertEqual(_memoryMap.get_state_register() & 0xf0, 0xa0);
for(int c = 0x0000; c < 0x0200; c++) {
const uint8_t value = c ^ (c >> 8);
[self write:value address:c];
XCTAssertEqual(_ram[c + 64*1024], value);
XCTAssertEqual([self readAddress:c], value);
}
// Reset.
memset(_ram.data(), 0, 128*1024);
// Enable 80STORE and PAGE2 and test for access to the second video page.
_memoryMap.access(0xc001, false);
_memoryMap.access(0xc055, true);
XCTAssertEqual(_memoryMap.get_state_register() & 0xf0, 0xe0);
for(int c = 0x0400; c < 0x0800; c++) {
const uint8_t value = c ^ (c >> 8);
[self write:value address:c];
XCTAssertEqual(_ram[c + 64*1024], value);
XCTAssertEqual([self readAddress:c], value);
}
// Reset.
memset(_ram.data(), 0, 128*1024);
// Enable HIRES and test for access to the second video page.
_memoryMap.access(0xc057, true);
for(int c = 0x2000; c < 0x4000; c++) {
const uint8_t value = c ^ (c >> 8);
[self write:value address:c];
XCTAssertEqual(_ram[c + 64*1024], value);
XCTAssertEqual([self readAddress:c], value);
}
}
@end