Commit f448b518f874929dd219ed957c314889d5dbf0cf | zig

author	Noam Preil <noam@pixelhero.dev> 2020-08-21 18:19:23-04:00
committer	Andrew Kelley <andrew@ziglang.org> 2020-08-22 12:45:29-07:00
log	f448b518f874929dd219ed957c314889d5dbf0cf
tree	6d3ca68ef607ef0e8059b00b4d01ac4011a60ba9
parent	222e23c6786e0ac307524c6c91b41782111af82a

2 files changed, 13 insertions(+), 2 deletions(-)

lib/std/spu/interpreter.zig+8-1

...	...	@@ -11,6 +11,9 @@ pub fn Interpreter(comptime Bus: type) type {
11	11	/// This is set to true when we hit an undefined0 instruction, allowing it to
12	12	/// be used as a trap for testing purposes
13	13	undefined0: bool = false,
	14	/// This is set to true when we hit an undefined1 instruction, allowing it to
	15	/// be used as a trap for testing purposes. undefined1 is used as a breakpoint.
	16	undefined1: bool = false,
14	17	bus: Bus,
15	18
16	19	pub fn ExecuteBlock(self: *@This(), comptime size: ?u32) !void {
...	...	@@ -122,7 +125,11 @@ pub fn Interpreter(comptime Bus: type) type {
122	125	// Break out of the loop, and let the caller decide what to do
123	126	return;
124	127	},
125		.undefined1 => return error.BadInstruction,
	128	.undefined1 => {
	129	self.undefined1 = true;
	130	// Break out of the loop, and let the caller decide what to do
	131	return;
	132	},
126	133	.signext => if ((val0 & 0x80) != 0)
127	134	(val0 & 0xFF) \| 0xFF00
128	135	else

src-self-hosted/codegen.zig+5-1

...	...	@@ -1265,7 +1265,11 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type {
1265	1265	.riscv64 => {
1266	1266	mem.writeIntLittle(u32, try self.code.addManyAsArray(4), Instruction.ebreak.toU32());
1267	1267	},
1268		.spu_2 => {},
	1268	.spu_2 => {
	1269	try self.code.resize(self.code.items.len + 2);
	1270	var instr = Instruction{ .condition = .always, .input0 = .zero, .input1 = .zero, .modify_flags = false, .output = .discard, .command = .undefined1 };
	1271	mem.writeIntLittle(u16, self.code.items[self.code.items.len - 2 ..][0..2], @bitCast(u16, instr));
	1272	},
1269	1273	else => return self.fail(src, "TODO implement @breakpoint() for {}", .{self.target.cpu.arch}),
1270	1274	}
1271	1275	return .none;