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Test rotates.

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This commit is contained in:
Thomas Harte 2022-03-30 16:43:09 -04:00
parent c9c5adc650
commit 84f0b0a84c
2 changed files with 115 additions and 2 deletions
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14
InstructionSets/PowerPC/Instruction.hpp
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@ -425,7 +425,18 @@ enum class Operation: uint8_t {
/// rA(), rB(), rD()
mullwx,
nandx, negx, norx, orx, orcx, ori, oris, rfi, rlwimix, rlwinmx, rlwnmx,
nandx, negx, norx, orx, orcx, ori, oris, rfi, rlwimix,
/// Rotate left word immediate then AND with mask.
/// rlwinm rlwinm.
/// rA(), rS(), sh(), mb(), me(), rc()
rlwinmx,
/// Rotate left word then AND with mask
/// rlwimi rlwimi.
/// rA(), rB(), rS(), mb(), me(), rc()
rlwnmx,
sc, slwx, srawx, srawix, srwx, stb, stbu,
/// Store byte with update indexed.
@ -620,7 +631,6 @@ struct Instruction {
uint32_t nb() const { return (opcode >> 11) & 0x1f; }
/// Specifies a shift amount.
/// TODO: possibly bit 30 is also used in 64-bit mode, find out.
uint32_t sh() const { return (opcode >> 11) & 0x1f; }
/// Specifies one of the 16 segment registers [32-bit only].

103
OSBindings/Mac/Clock SignalTests/DingusdevPowerPCTests.mm
View File

@ -33,6 +33,11 @@ void AssertEqualOperationNameOE(NSString *lhs, Instruction instruction, NSString
XCTAssertEqualObjects(lhs, rhs);
}
void AssertEqualR(NSString *name, uint32_t reg) {
NSString *const regName = [NSString stringWithFormat:@"r%d", reg];
XCTAssertEqualObjects(name, regName);
}
NSString *condition(uint32_t code) {
NSString *suffix;
switch(Condition(code & 3)) {
@ -101,6 +106,104 @@ NSString *condition(uint32_t code) {
NSAssert(FALSE, @"Didn't handle %@", line);
break;
case Operation::rlwinmx: {
// This maps the opposite way from most of the other tests
// owing to the simplified names being a shade harder to
// detect motivationally.
XCTAssertEqual((instruction.rc() != 0), ([operation characterAtIndex:operation.length - 1] == '.'));
AssertEqualR(columns[3], instruction.rA());
AssertEqualR(columns[4], instruction.rS());
const auto n = [columns[5] intValue];
const auto b = columns.count > 6 ? [columns[6] intValue] : 0;
if([operation isEqualToString:@"extlwi"] || [operation isEqualToString:@"extlwi."]) {
XCTAssertEqual(instruction.sh(), b);
XCTAssertEqual(instruction.mb(), 0);
XCTAssertEqual(instruction.me(), n - 1);
break;
}
if([operation isEqualToString:@"extrwi"] || [operation isEqualToString:@"extrwi."]) {
XCTAssertEqual(instruction.sh(), b + n);
XCTAssertEqual(instruction.mb(), 32 - n);
XCTAssertEqual(instruction.me(), 31);
break;
}
if([operation isEqualToString:@"inslwi"] || [operation isEqualToString:@"inslwi."]) {
XCTAssertEqual(instruction.sh(), 32 - b);
XCTAssertEqual(instruction.mb(), b);
XCTAssertEqual(instruction.me(), b + n - 1);
break;
}
if([operation isEqualToString:@"insrwi"] || [operation isEqualToString:@"insrwi."]) {
XCTAssertEqual(instruction.sh(), 32 - (b + n));
XCTAssertEqual(instruction.mb(), b);
XCTAssertEqual(instruction.me(), b + n - 1);
break;
}
if([operation isEqualToString:@"rotlwi"] || [operation isEqualToString:@"rotlwi."]) {
XCTAssertEqual(instruction.sh(), n);
XCTAssertEqual(instruction.mb(), 0);
XCTAssertEqual(instruction.me(), 31);
break;
}
if([operation isEqualToString:@"rotrwi"] || [operation isEqualToString:@"rotrwi."]) {
XCTAssertEqual(instruction.sh(), 32 - n);
XCTAssertEqual(instruction.mb(), 0);
XCTAssertEqual(instruction.me(), 31);
break;
}
if([operation isEqualToString:@"rotlw"] || [operation isEqualToString:@"rotlw."]) {
XCTAssertEqual(instruction.rB(), n);
XCTAssertEqual(instruction.mb(), 0);
XCTAssertEqual(instruction.me(), 31);
break;
}
if([operation isEqualToString:@"slwi"] || [operation isEqualToString:@"slwi."]) {
XCTAssertEqual(instruction.sh(), n);
XCTAssertEqual(instruction.mb(), 0);
XCTAssertEqual(instruction.me(), 31 - n);
break;
}
if([operation isEqualToString:@"srwi"] || [operation isEqualToString:@"srwi."]) {
XCTAssertEqual(instruction.sh(), 32 - n);
XCTAssertEqual(instruction.mb(), n);
XCTAssertEqual(instruction.me(), 31);
break;
}
if([operation isEqualToString:@"clrlwi"] || [operation isEqualToString:@"clrlwi."]) {
XCTAssertEqual(instruction.sh(), 0);
XCTAssertEqual(instruction.mb(), n);
XCTAssertEqual(instruction.me(), 31);
break;
}
if([operation isEqualToString:@"clrrwi"] || [operation isEqualToString:@"clrrwi."]) {
XCTAssertEqual(instruction.sh(), 0);
XCTAssertEqual(instruction.mb(), 0);
XCTAssertEqual(instruction.me(), 31 - n);
break;
}
if([operation isEqualToString:@"clrlslwi"] || [operation isEqualToString:@"clrlslwi."]) {
XCTAssertEqual(instruction.sh(), n);
XCTAssertEqual(instruction.mb(), b - n);
XCTAssertEqual(instruction.me(), 31 - n);
break;
}
NSAssert(FALSE, @"Didn't handle %@", line);
} break;
#define CRMod(x) \
case Operation::x: \
AssertEqualOperationName(operation, @#x); \