codegen: use s registers instead of t

doesn't make any difference yet and I don't know exactly when to use
what when it starts to matter. but binary ninja thought that syscalls
could override t registers (which is not the case) so this makes
decompilations slightly nicer

1 files changed, 1 insertions, 1 deletions

diff --git a/src/codegen.zig b/src/codegen.zig
index fe58f74..07f3a4d 100644
--- a/src/codegen.zig
+++ b/src/codegen.zig
@@ -496,7 +496,7 @@ const RegisterAllocator = struct {
 
     fn init(allocator: Allocator) !RegisterAllocator {
         var available: std.ArrayList(Register) = .init(allocator);
-        for ([_]Register{ .t6, .t5, .t4, .t3, .t2, .t1, .t0 }) |reg| {
+        for ([_]Register{ .s11, .s10, .s9, .s8, .s7, .s6, .s5, .s4, .s3, .s2, .s1, .s0 }) |reg| {
             try available.append(reg);
         }
         var allocated: std.AutoHashMap(compile.VReg, Register) = .init(allocator);