x64/c: explicit ABI in comment

jjyg · Oct 29, 2024 · 09849d1 · 09849d1
1 parent 165bfd7
commit 09849d1
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/metasm/cpu/x86_64/compile_c.rb b/metasm/cpu/x86_64/compile_c.rb
@@ -946,9 +946,11 @@ def c_init_state(func)
 		@state = State.new(func)
 		args = func.type.args.dup
 		if @parser.lexer.definition['__MS_X86_64_ABI__']
+			# windows: rcx rdx r8 r9
 			@state.args_space = 32
 			@state.regargs = [1, 2, 8, 9]
 		else
+			# linux: rdi rsi rdx rcx r8 r9
 			@state.args_space = 0
 			@state.regargs = [7, 6, 2, 1, 8, 9]
 		end