+#define BDISP(x) ((((x) & 0xffffff) ^ 0x800000) - 0x800000) /* 26 bit */
+
+static struct thumb_opcode thumb_opcodes[] =
+{
+ /* Thumb instructions */
+ {0x46C0, 0xFFFF, "nop\t\t\t(mov r8,r8)"}, /* format 5 instructions do not update the PSR */
+ {0x1C00, 0xFFC0, "mov\t%0-2r, %3-5r\t\t(add %0-2r, %3-5r, #%6-8d)"},
+ /* format 4 */
+ {0x4000, 0xFFC0, "and\t%0-2r, %3-5r"},
+ {0x4040, 0xFFC0, "eor\t%0-2r, %3-5r"},
+ {0x4080, 0xFFC0, "lsl\t%0-2r, %3-5r"},
+ {0x40C0, 0xFFC0, "lsr\t%0-2r, %3-5r"},
+ {0x4100, 0xFFC0, "asr\t%0-2r, %3-5r"},
+ {0x4140, 0xFFC0, "adc\t%0-2r, %3-5r"},
+ {0x4180, 0xFFC0, "sbc\t%0-2r, %3-5r"},
+ {0x41C0, 0xFFC0, "ror\t%0-2r, %3-5r"},
+ {0x4200, 0xFFC0, "tst\t%0-2r, %3-5r"},
+ {0x4240, 0xFFC0, "neg\t%0-2r, %3-5r"},
+ {0x4280, 0xFFC0, "cmp\t%0-2r, %3-5r"},
+ {0x42C0, 0xFFC0, "cmn\t%0-2r, %3-5r"},
+ {0x4300, 0xFFC0, "orr\t%0-2r, %3-5r"},
+ {0x4340, 0xFFC0, "mul\t%0-2r, %3-5r"},
+ {0x4380, 0xFFC0, "bic\t%0-2r, %3-5r"},
+ {0x43C0, 0xFFC0, "mvn\t%0-2r, %3-5r"},
+ /* format 13 */
+ {0xB000, 0xFF80, "add\tsp, #%0-6W"},
+ {0xB080, 0xFF80, "sub\tsp, #%0-6W"},
+ /* format 5 */
+ {0x4700, 0xFF80, "bx\t%S"},
+ {0x4400, 0xFF00, "add\t%D, %S"},
+ {0x4500, 0xFF00, "cmp\t%D, %S"},
+ {0x4600, 0xFF00, "mov\t%D, %S"},
+ /* format 14 */
+ {0xB400, 0xFE00, "push\t%N"},
+ {0xBC00, 0xFE00, "pop\t%O"},
+ /* format 2 */
+ {0x1800, 0xFE00, "add\t%0-2r, %3-5r, %6-8r"},
+ {0x1A00, 0xFE00, "sub\t%0-2r, %3-5r, %6-8r"},
+ {0x1C00, 0xFE00, "add\t%0-2r, %3-5r, #%6-8d"},
+ {0x1E00, 0xFE00, "sub\t%0-2r, %3-5r, #%6-8d"},
+ /* format 8 */
+ {0x5200, 0xFE00, "strh\t%0-2r, [%3-5r, %6-8r]"},
+ {0x5A00, 0xFE00, "ldrh\t%0-2r, [%3-5r, %6-8r]"},
+ {0x5600, 0xF600, "lds%11?hb\t%0-2r, [%3-5r, %6-8r]"},
+ /* format 7 */
+ {0x5000, 0xFA00, "str%10'b\t%0-2r, [%3-5r, %6-8r]"},
+ {0x5800, 0xFA00, "ldr%10'b\t%0-2r, [%3-5r, %6-8r]"},
+ /* format 1 */
+ {0x0000, 0xF800, "lsl\t%0-2r, %3-5r, #%6-10d"},
+ {0x0800, 0xF800, "lsr\t%0-2r, %3-5r, #%6-10d"},
+ {0x1000, 0xF800, "asr\t%0-2r, %3-5r, #%6-10d"},
+ /* format 3 */
+ {0x2000, 0xF800, "mov\t%8-10r, #%0-7d"},
+ {0x2800, 0xF800, "cmp\t%8-10r, #%0-7d"},
+ {0x3000, 0xF800, "add\t%8-10r, #%0-7d"},
+ {0x3800, 0xF800, "sub\t%8-10r, #%0-7d"},
+ /* format 6 */
+ {0x4800, 0xF800, "ldr\t%8-10r, [pc, #%0-7W]\t(%0-7a)"}, /* TODO: Disassemble PC relative "LDR rD,=<symbolic>" */
+ /* format 9 */
+ {0x6000, 0xF800, "str\t%0-2r, [%3-5r, #%6-10W]"},
+ {0x6800, 0xF800, "ldr\t%0-2r, [%3-5r, #%6-10W]"},
+ {0x7000, 0xF800, "strb\t%0-2r, [%3-5r, #%6-10d]"},
+ {0x7800, 0xF800, "ldrb\t%0-2r, [%3-5r, #%6-10d]"},
+ /* format 10 */
+ {0x8000, 0xF800, "strh\t%0-2r, [%3-5r, #%6-10H]"},
+ {0x8800, 0xF800, "ldrh\t%0-2r, [%3-5r, #%6-10H]"},
+ /* format 11 */
+ {0x9000, 0xF800, "str\t%8-10r, [sp, #%0-7W]"},
+ {0x9800, 0xF800, "ldr\t%8-10r, [sp, #%0-7W]"},
+ /* format 12 */
+ {0xA000, 0xF800, "add\t%8-10r, pc, #%0-7W\t(adr %8-10r,%0-7a)"},
+ {0xA800, 0xF800, "add\t%8-10r, sp, #%0-7W"},
+ /* format 15 */
+ {0xC000, 0xF800, "stmia\t%8-10r!,%M"},
+ {0xC800, 0xF800, "ldmia\t%8-10r!,%M"},
+ /* format 18 */
+ {0xE000, 0xF800, "b\t%0-10B"},
+ {0xE800, 0xF800, "undefined"},
+ /* format 19 */
+ {0xF000, 0xF800, ""}, /* special processing required in disassembler */
+ {0xF800, 0xF800, "second half of BL instruction %0-15x"},
+ /* format 16 */
+ {0xD000, 0xFF00, "beq\t%0-7B"},
+ {0xD100, 0xFF00, "bne\t%0-7B"},
+ {0xD200, 0xFF00, "bcs\t%0-7B"},
+ {0xD300, 0xFF00, "bcc\t%0-7B"},
+ {0xD400, 0xFF00, "bmi\t%0-7B"},
+ {0xD500, 0xFF00, "bpl\t%0-7B"},
+ {0xD600, 0xFF00, "bvs\t%0-7B"},
+ {0xD700, 0xFF00, "bvc\t%0-7B"},
+ {0xD800, 0xFF00, "bhi\t%0-7B"},
+ {0xD900, 0xFF00, "bls\t%0-7B"},
+ {0xDA00, 0xFF00, "bge\t%0-7B"},
+ {0xDB00, 0xFF00, "blt\t%0-7B"},
+ {0xDC00, 0xFF00, "bgt\t%0-7B"},
+ {0xDD00, 0xFF00, "ble\t%0-7B"},
+ /* format 17 */
+ {0xDE00, 0xFF00, "undefined"},
+ {0xDF00, 0xFF00, "swi\t%0-7d"},
+ /* format 9 */
+ {0x6000, 0xF800, "str\t%0-2r, [%3-5r, #%6-10W]"},
+ {0x6800, 0xF800, "ldr\t%0-2r, [%3-5r, #%6-10W]"},
+ {0x7000, 0xF800, "strb\t%0-2r, [%3-5r, #%6-10d]"},
+ {0x7800, 0xF800, "ldrb\t%0-2r, [%3-5r, #%6-10d]"},
+ /* the rest */
+ {0x0000, 0x0000, "undefined instruction %0-15x"},
+ {0x0000, 0x0000, 0}
+};
+
+#define BDISP23(x) ((((((x) & 0x07ff) << 11) | (((x) & 0x07ff0000) >> 16)) \
+ ^ 0x200000) - 0x200000) /* 23bit */
+