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-rw-r--r--src-self-hosted/codegen/spu-mk2.zig160
1 files changed, 2 insertions, 158 deletions
diff --git a/src-self-hosted/codegen/spu-mk2.zig b/src-self-hosted/codegen/spu-mk2.zig
index b44d4123bd..0a95dce663 100644
--- a/src-self-hosted/codegen/spu-mk2.zig
+++ b/src-self-hosted/codegen/spu-mk2.zig
@@ -1,161 +1,4 @@
-const std = @import("std");
-
-pub const ExecutionCondition = enum(u3) {
- always = 0,
- when_zero = 1,
- not_zero = 2,
- greater_zero = 3,
- less_than_zero = 4,
- greater_or_equal_zero = 5,
- less_or_equal_zero = 6,
- overflow = 7,
-};
-
-pub const InputBehaviour = enum(u2) {
- zero = 0,
- immediate = 1,
- peek = 2,
- pop = 3,
-};
-
-pub const OutputBehaviour = enum(u2) {
- discard = 0,
- push = 1,
- jump = 2,
- jump_relative = 3,
-};
-
-pub const Command = enum(u5) {
- copy = 0,
- ipget = 1,
- get = 2,
- set = 3,
- store8 = 4,
- store16 = 5,
- load8 = 6,
- load16 = 7,
- undefined0 = 8,
- undefined1 = 9,
- frget = 10,
- frset = 11,
- bpget = 12,
- bpset = 13,
- spget = 14,
- spset = 15,
- add = 16,
- sub = 17,
- mul = 18,
- div = 19,
- mod = 20,
- @"and" = 21,
- @"or" = 22,
- xor = 23,
- not = 24,
- signext = 25,
- rol = 26,
- ror = 27,
- bswap = 28,
- asr = 29,
- lsl = 30,
- lsr = 31,
-};
-
-pub const Instruction = packed struct {
- condition: ExecutionCondition,
- input0: InputBehaviour,
- input1: InputBehaviour,
- modify_flags: bool,
- output: OutputBehaviour,
- command: Command,
- reserved: u1 = 0,
-
- pub fn format(instr: Instruction, comptime fmt: []const u8, options: std.fmt.FormatOptions, out: anytype) !void {
- try std.fmt.format(out, "0x{x:0<4} ", .{@bitCast(u16, instr)});
- try out.writeAll(switch (instr.condition) {
- .always => " ",
- .when_zero => "== 0",
- .not_zero => "!= 0",
- .greater_zero => " > 0",
- .less_than_zero => " < 0",
- .greater_or_equal_zero => ">= 0",
- .less_or_equal_zero => "<= 0",
- .overflow => "ovfl",
- });
- try out.writeAll(" ");
- try out.writeAll(switch (instr.input0) {
- .zero => "zero",
- .immediate => "imm ",
- .peek => "peek",
- .pop => "pop ",
- });
- try out.writeAll(" ");
- try out.writeAll(switch (instr.input1) {
- .zero => "zero",
- .immediate => "imm ",
- .peek => "peek",
- .pop => "pop ",
- });
- try out.writeAll(" ");
- try out.writeAll(switch (instr.command) {
- .copy => "copy ",
- .ipget => "ipget ",
- .get => "get ",
- .set => "set ",
- .store8 => "store8 ",
- .store16 => "store16 ",
- .load8 => "load8 ",
- .load16 => "load16 ",
- .undefined0 => "undefined",
- .undefined1 => "undefined",
- .frget => "frget ",
- .frset => "frset ",
- .bpget => "bpget ",
- .bpset => "bpset ",
- .spget => "spget ",
- .spset => "spset ",
- .add => "add ",
- .sub => "sub ",
- .mul => "mul ",
- .div => "div ",
- .mod => "mod ",
- .@"and" => "and ",
- .@"or" => "or ",
- .xor => "xor ",
- .not => "not ",
- .signext => "signext ",
- .rol => "rol ",
- .ror => "ror ",
- .bswap => "bswap ",
- .asr => "asr ",
- .lsl => "lsl ",
- .lsr => "lsr ",
- });
- try out.writeAll(" ");
- try out.writeAll(switch (instr.output) {
- .discard => "discard",
- .push => "push ",
- .jump => "jmp ",
- .jump_relative => "rjmp ",
- });
- try out.writeAll(" ");
- try out.writeAll(if (instr.modify_flags)
- "+ flags"
- else
- " ");
- }
-};
-
-pub const FlagRegister = packed struct {
- zero: bool,
- negative: bool,
- carry: bool,
- carry_enabled: bool,
- interrupt0_enabled: bool,
- interrupt1_enabled: bool,
- interrupt2_enabled: bool,
- interrupt3_enabled: bool,
- reserved: u8 = 0,
-};
+pub usingnamespace @import("std").spu;
pub const Register = enum {
dummy,
@@ -164,4 +7,5 @@ pub const Register = enum {
return null;
}
};
+
pub const callee_preserved_regs = [_]Register{};