added tabs for assembly files

lua/options.lua

@@ -16,6 +16,17 @@ vim.api.nvim_create_autocmd({ "FocusGained", "BufEnter", "CursorHold", "CursorHo
     command = "if mode() != 'c' | checktime | endif",
 })
 
+vim.filetype.add({ extension = { asm = "asm", s = "asm", S = "asm" } })
+vim.api.nvim_create_autocmd("FileType", {
+    pattern = "asm",
+    callback = function()
+        vim.bo.tabstop = 8
+        vim.bo.shiftwidth = 8
+        vim.bo.softtabstop = 8
+        vim.bo.expandtab = false
+    end,
+})
+
 vim.diagnostic.config({
     virtual_text = { prefix = "●", spacing = 2, source = "if_many" },
     severity_sort = true,