diff --git a/lib/std/Build/Configuration.zig b/lib/std/Build/Configuration.zig
index bdbe7303428b8e26941c03b4e469bbb038208ca5..236fa4671dcf6490a466db1b4a040d39988dabc6 100644
--- a/lib/std/Build/Configuration.zig
+++ b/lib/std/Build/Configuration.zig
@@ -2591,6 +2591,7 @@ pub const TargetQuery = struct {
         uefi,
         @"3ds",
         wiiu,
+        psx,
         ps3,
         ps4,
         ps5,
@@ -2640,6 +2641,7 @@ pub const TargetQuery = struct {
                 .uefi => .uefi,
                 .@"3ds" => .@"3ds",
                 .wiiu => .wiiu,
+                .psx => .psx,
                 .ps3 => .ps3,
                 .ps4 => .ps4,
                 .ps5 => .ps5,
@@ -2689,6 +2691,7 @@ pub const TargetQuery = struct {
                 .uefi => .uefi,
                 .@"3ds" => .@"3ds",
                 .wiiu => .wiiu,
+                .psx => .psx,
                 .ps3 => .ps3,
                 .ps4 => .ps4,
                 .ps5 => .ps5,
diff --git a/lib/std/Target.zig b/lib/std/Target.zig
index b9e967844211a1c6d640dc621dc88533bb0be91b..a75d23ca4d7530da5aaeda2c3f9c5a2056914391 100644
--- a/lib/std/Target.zig
+++ b/lib/std/Target.zig
@@ -51,6 +51,7 @@ pub const Os = struct {
         @"3ds",
         wiiu,
 
+        psx,
         ps3,
         ps4,
         ps5,
@@ -166,6 +167,7 @@ pub const Os = struct {
                 .plan9,
                 .serenity,
 
+                .psx,
                 .ps3,
                 .ps4,
                 .ps5,
@@ -402,6 +404,7 @@ pub const Os = struct {
                 .plan9,
                 .serenity,
 
+                .psx,
                 .ps3,
                 .ps4,
                 .ps5,
@@ -949,6 +952,7 @@ pub const Abi = enum {
             .uefi => .msvc,
             .@"3ds" => .eabihf,
             .wiiu => .eabihf,
+            .psx => .eabi,
             .psp => .eabihf,
             .vita => .eabihf,
             .wasi, .emscripten => .musl,
@@ -2098,6 +2102,7 @@ pub const Cpu = struct {
                 .m68k => &m68k.cpu.M68030,
                 .mips => &mips.cpu.mips32r2,
                 .mipsel => switch (os.tag) {
+                    .psx => &mips.cpu.r3000a,
                     .psp => &mips.cpu.allegrex,
                     else => &mips.cpu.mips32r2,
                 },
@@ -2290,11 +2295,12 @@ pub fn requiresLibC(target: *const Target) bool {
         .freestanding,
         .fuchsia,
         .managarm,
-        .ps3,
         .rtems,
         .cuda,
         .nvcl,
         .amdhsa,
+        .psx,
+        .ps3,
         .ps4,
         .ps5,
         .psp,
@@ -2475,6 +2481,7 @@ pub const DynamicLinker = struct {
             .opengl,
             .vulkan,
 
+            .psx,
             .ps3,
             .ps4,
             .ps5,
@@ -2886,6 +2893,7 @@ pub const DynamicLinker = struct {
             .@"3ds",
             .wiiu,
 
+            .psx,
             .psp,
             .vita,
 
@@ -3445,6 +3453,12 @@ pub fn cTypeBitSize(target: *const Target, c_type: CType) u16 {
             .longlong, .ulonglong, .double, .longdouble => return 64,
         },
 
+        .psx => switch (c_type) {
+            .char => return 8,
+            .short, .ushort => return 16,
+            .int, .uint, .long, .ulong, .float => return 32,
+            .longlong, .ulonglong, .double, .longdouble => return 64,
+        },
         .ps4, .ps5 => switch (c_type) {
             .char => return 8,
             .short, .ushort => return 16,
diff --git a/lib/std/Target/mips.zig b/lib/std/Target/mips.zig
index 02ff2f6a9d338d52e5b188a13e4d8fbcd6673f6f..dad3a54940b45a9e9f2a7f45f8fb52cf34545f63 100644
--- a/lib/std/Target/mips.zig
+++ b/lib/std/Target/mips.zig
@@ -587,4 +587,13 @@ pub const cpu = struct {
             .p5600,
         }),
     };
+    pub const r3000a: CpuModel = .{
+        .name = "r3000a",
+        .llvm_name = null,
+        .features = featureSet(&[_]Feature{
+            .mips1,
+            .notraps,
+            .soft_float,
+        }),
+    };
 };
diff --git a/lib/std/debug.zig b/lib/std/debug.zig
index ccbb38a1d6743ae0d099dac5e62ebbe6ab0c6d86..578d06fd3f5ddefdf64d8ea3af2e6b510a7513d3 100644
--- a/lib/std/debug.zig
+++ b/lib/std/debug.zig
@@ -507,7 +507,16 @@ pub fn defaultPanic(msg: []const u8, first_trace_addr: ?usize) noreturn {
     if (use_trap_panic) @trap();
 
     switch (builtin.os.tag) {
-        .freestanding, .other, .@"3ds", .wiiu, .psp, .vita => {
+        .freestanding,
+        .other,
+
+        .@"3ds",
+        .wiiu,
+
+        .psx,
+        .psp,
+        .vita,
+        => {
             @trap();
         },
         .uefi => {
diff --git a/lib/std/start.zig b/lib/std/start.zig
index b1c9b4886fffc84c39f84c9407697d168ad5d4cc..d779042189bf3eaeb8b7e41e5dd1fa7bb53f3491 100644
--- a/lib/std/start.zig
+++ b/lib/std/start.zig
@@ -70,7 +70,19 @@ comptime {
             // case it's not required to provide an entrypoint such as main.
             if (!@hasDecl(root, start_sym_name) and @hasDecl(root, "main")) @export(&wasm_freestanding_start, .{ .name = start_sym_name });
         } else switch (native_os) {
-            .other, .freestanding, .@"3ds", .wiiu, .psp, .vita, .vulkan, .opengl, .opencl => {},
+            .other,
+            .freestanding,
+            .vulkan,
+            .opengl,
+            .opencl,
+
+            .@"3ds",
+            .wiiu,
+
+            .psx,
+            .psp,
+            .vita,
+            => {},
             else => if (!@hasDecl(root, start_sym_name)) @export(&_start, .{ .name = start_sym_name }),
         }
     }
diff --git a/src/Compilation.zig b/src/Compilation.zig
index 0a8de7e94f3b6a7dc4e47b0777a5fbe05827e2ab..c5d78866f8a97c69727b496abee4b035e5c14935 100644
--- a/src/Compilation.zig
+++ b/src/Compilation.zig
@@ -6354,6 +6354,7 @@ fn addCommonCCArgs(
                 // Homebrew targets without LLVM support; use communities's preferred macros.
                 .@"3ds" => try argv.append("-D__3DS__"),
                 .wiiu => try argv.append("-D__WIIU__"),
+                .psx => try argv.append("-D__psx__"),
                 .psp => try argv.append("-D__PSP__"),
                 .vita => try argv.append("-D__vita__"),
                 else => {},
diff --git a/src/codegen/llvm.zig b/src/codegen/llvm.zig
index f747b6c8960513cde547e037174cee71573715e1..c00dc45b80166c02ab3e46320af00216014dfe0a 100644
--- a/src/codegen/llvm.zig
+++ b/src/codegen/llvm.zig
@@ -243,9 +243,10 @@ pub fn targetTriple(allocator: Allocator, target: *const std.Target) ![]const u8
         .opengl,
         .other,
         .plan9,
+        .psx,
         .psp,
-        .tios,
         .vita,
+        .tios,
         .wiiu,
         => "unknown",
     };
diff --git a/test/llvm_targets.zig b/test/llvm_targets.zig
index ce4a2b145ab7911afe650a5d162c0bf59297a56e..9e3761b68b62c7d74090d9162530f77e57b73132 100644
--- a/test/llvm_targets.zig
+++ b/test/llvm_targets.zig
@@ -154,6 +154,7 @@ const targets = [_]std.Target.Query{
     .{ .cpu_arch = .mipsel, .os_tag = .linux, .abi = .musleabihf },
     .{ .cpu_arch = .mipsel, .os_tag = .netbsd, .abi = .eabi },
     .{ .cpu_arch = .mipsel, .os_tag = .netbsd, .abi = .eabihf },
+    .{ .cpu_arch = .mipsel, .os_tag = .psx, .abi = .eabi },
     .{ .cpu_arch = .mipsel, .os_tag = .psp, .abi = .eabihf },
     .{ .cpu_arch = .mipsel, .os_tag = .rtems, .abi = .eabi },
     .{ .cpu_arch = .mipsel, .os_tag = .rtems, .abi = .eabihf },
diff --git a/tools/update_cpu_features.zig b/tools/update_cpu_features.zig
index ea6a659507a972c3c95492817ac6779a4ced05ba..8ba30a61e37a3d387199fd835985771c0da94481 100644
--- a/tools/update_cpu_features.zig
+++ b/tools/update_cpu_features.zig
@@ -1358,6 +1358,15 @@ const targets = [_]ArchTarget{
             },
         },
         .extra_cpus = &.{
+            .{
+                .llvm_name = null,
+                .zig_name = "r3000a",
+                .features = &.{
+                    "mips1",
+                    "soft_float",
+                    "notraps",
+                },
+            },
             .{
                 .llvm_name = null,
                 .zig_name = "allegrex",