Fixes #614: Implement a debug trap;

2018-12-05 17:30:22 +01:00
parent f065b39d65
commit 93696a80bb
4 changed files with 17 additions and 0 deletions
--- a/lib/codegen/meta-python/isa/x86/recipes.py
+++ b/lib/codegen/meta-python/isa/x86/recipes.py
@@ -295,6 +295,11 @@ def valid_scale(iform):
 # copies and no-op conversions.
 null = EncRecipe('null', Unary, base_size=0, ins=GPR, outs=0, emit='')

+debugtrap = EncRecipe('debugtrap', NullAry, base_size=1, ins=(), outs=(),
+                      emit='''
+                      sink.put1(0xcc);
+                      ''')
+
 # XX opcode, no ModR/M.
 trap = TailRecipe(
        'trap', Trap, base_size=0, ins=(), outs=(),