1 files changed, 7 insertions, 0 deletions
diff --git a/src/sema.c b/src/sema.c
index 274bd53..4b9af4a 100644
--- a/src/sema.c
+++ b/src/sema.c
@@ -199,6 +199,8 @@ static bool is_arch_register(struct Token token)
 		"rip",
 		"xmm0", "xmm1", "xmm2",  "xmm3",  "xmm4",  "xmm5",  "xmm6",  "xmm7",
 		"xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15",
+		"cs", "ds", "es", "fs", "gs", "ss",
+		"cr0", "cr2", "cr3", "cr4", "cr8",
 	};
 
 	for (size_t i = 0; i < sizeof(names) / sizeof(names[0]); i += 1)
@@ -497,6 +499,11 @@ static void check_statement(struct RefCheck* check, struct Statement* statement)
 		case STATEMENT_LABEL:
 		case STATEMENT_SYSCALL:
 			break;
+		case STATEMENT_INSTRUCTION:
+			// a raw instruction is an escape hatch; its operands may name asm
+			// symbols or registers hdass does not model, so leave them to the
+			// assembler rather than flagging them as undefined
+			break;
 	}
 }