finally working oh my gash

tiva/build.zig

@@ -4,7 +4,7 @@ pub fn build(b: *std.Build) void {
     const target = b.resolveTargetQuery(.{
         .cpu_arch = .thumb,
         .os_tag = .freestanding,
-        .abi = .eabi,
+        .abi = .eabihf,
         .cpu_model = .{ .explicit = &std.Target.arm.cpu.cortex_m4 },
     });
 
@@ -29,6 +29,10 @@ pub fn build(b: *std.Build) void {
         .root_module = tiva_module,
     });
 
+    const bin = elf.addObjCopy(.{ .format = .bin });
+    const install_bin = b.addInstallBinFile(bin.getOutput(), "tiva-app.bin");
+    b.getInstallStep().dependOn(&install_bin.step);
+
     elf.root_module.strip = true; 
     elf.root_module.omit_frame_pointer = true;
     elf.root_module.unwind_tables = .none;