From b64dea80ce5d1413fb5dfcd94f19e77816b6bdf7 Mon Sep 17 00:00:00 2001 From: Lioncash Date: Sun, 31 May 2015 03:33:07 -0400 Subject: arm_dyncom_thumb: Implement REV, REV16, and REVSH. --- src/core/arm/dyncom/arm_dyncom_thumb.cpp | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'src/core/arm') diff --git a/src/core/arm/dyncom/arm_dyncom_thumb.cpp b/src/core/arm/dyncom/arm_dyncom_thumb.cpp index 2fc8170b..78552293 100644 --- a/src/core/arm/dyncom/arm_dyncom_thumb.cpp +++ b/src/core/arm/dyncom/arm_dyncom_thumb.cpp @@ -274,9 +274,19 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { ? 0xE24DDF00 // SUB : 0xE28DDF00) // ADD |(tinstr & 0x007F); // off7 - } else if ((tinstr & 0x0F00) == 0x0e00) + } else if ((tinstr & 0x0F00) == 0x0e00) { *ainstr = 0xEF000000 | 0x180000; // base | BKPT mask - else { + } else if ((tinstr & 0x0F00) == 0x0a00) { + static const ARMword subset[3] = { + 0xE6BF0F30, // REV + 0xE6BF0FB0, // REV16 + 0xE6FF0FB0, // REVSH + }; + + *ainstr = subset[BITS(tinstr, 6, 7)] // base + | (BITS(tinstr, 0, 2) << 12) // Rd + | BITS(tinstr, 3, 5); // Rm + } else { static const ARMword subset[4] = { 0xE92D0000, // STMDB sp!,{rlist} 0xE92D4000, // STMDB sp!,{rlist,lr} -- cgit v1.2.3