parseinstr: Simplify opcode naming scheme

2020-11-08 13:46:54 +01:00
parent 9df6ac1788
commit 62b0420147
4 changed files with 278 additions and 280 deletions
--- a/decode.c
+++ b/decode.c
@@ -236,7 +236,8 @@ decode_modrm(const uint8_t* buffer, int len, DecodeMode mode, FdInstr* instr,

        uint8_t reg_idx = rm;
 #if defined(ARCH_X86_64)
-        if (!UNLIKELY(out_o1->misc == FD_RT_MMX || out_o1->misc == FD_RT_MASK))
+        if (!UNLIKELY(out_o1->misc == FD_RT_FPU || out_o1->misc == FD_RT_MMX ||
+                      out_o1->misc == FD_RT_MASK))
            reg_idx += prefixes & PREFIX_REXB ? 8 : 0;
 #endif
        out_o1->type = FD_OT_REG;