/* Altera Nios II disassemble routines
- Copyright (C) 2012-2018 Free Software Foundation, Inc.
+ Copyright (C) 2012-2020 Free Software Foundation, Inc.
Contributed by Nigel Gray (ngray@altera.com).
Contributed by Mentor Graphics, Inc.
switch (op->format)
{
case iw_i_type:
- s = (int32_t) (GET_IW_I_IMM16 (opcode) << 16) >> 16;
+ s = ((GET_IW_I_IMM16 (opcode) & 0xffff) ^ 0x8000) - 0x8000;
break;
case iw_F2I16_type:
- s = (int32_t) (GET_IW_F2I16_IMM16 (opcode) << 16) >> 16;
+ s = ((GET_IW_F2I16_IMM16 (opcode) & 0xffff) ^ 0x8000) - 0x8000;
break;
default:
bad_opcode (op);
switch (op->format)
{
case iw_F2X4I12_type:
- s = (int32_t) (GET_IW_F2X4I12_IMM12 (opcode) << 20) >> 20;
+ s = ((GET_IW_F2X4I12_IMM12 (opcode) & 0xfff) ^ 0x800) - 0x800;
break;
case iw_F1X4I12_type:
- s = (int32_t) (GET_IW_F1X4I12_IMM12 (opcode) << 20) >> 20;
+ s = ((GET_IW_F1X4I12_IMM12 (opcode) & 0xfff) ^ 0x800) - 0x800;
break;
default:
bad_opcode (op);
switch (op->format)
{
case iw_i_type:
- o = (int32_t) (GET_IW_I_IMM16 (opcode) << 16) >> 16;
+ o = ((GET_IW_I_IMM16 (opcode) & 0xffff) ^ 0x8000) - 0x8000;
break;
case iw_F2I16_type:
- o = (int32_t) (GET_IW_F2I16_IMM16 (opcode) << 16) >> 16;
+ o = ((GET_IW_F2I16_IMM16 (opcode) & 0xffff) ^ 0x8000) - 0x8000;
break;
default:
bad_opcode (op);
switch (op->format)
{
case iw_I10_type:
- o = (int32_t) (GET_IW_I10_IMM10 (opcode) << 22) >> 21;
+ o = (((GET_IW_I10_IMM10 (opcode) & 0x3ff) ^ 0x400) - 0x400) << 1;
break;
default:
bad_opcode (op);
switch (op->format)
{
case iw_T1I7_type:
- o = (int32_t) (GET_IW_T1I7_IMM7 (opcode) << 25) >> 24;
+ o = (((GET_IW_T1I7_IMM7 (opcode) & 0x7f) ^ 0x40) - 0x40) << 1;
break;
default:
bad_opcode (op);
if (i & (1 << 10))
reglist |= (1 << 28);
if (i & (1 << 11))
- reglist |= (1 << 31);
+ reglist |= (1u << 31);
}
else
reglist = i << 2;
case iw_L5I4X1_type:
/* Encoding for push.n/pop.n. */
- reglist |= (1 << 31);
+ reglist |= (1u << 31);
if (GET_IW_L5I4X1_FP (opcode))
reglist |= (1 << 28);
if (GET_IW_L5I4X1_CS (opcode))
for (k = (dir == 1 ? 0 : 31);
(dir == 1 && k < 32) || (dir == -1 && k >= 0);
k += dir)
- if (reglist & (1 << k))
+ if (reglist & (1u << k))
{
if (t)
(*info->fprintf_func) (info->stream, ",");