/* Disassemble ft32 instructions.
- Copyright (C) 2013-2015 Free Software Foundation, Inc.
+ Copyright (C) 2013-2017 Free Software Foundation, Inc.
Contributed by FTDI (support@ftdichip.com)
This file is part of the GNU opcodes library.
#define DEFINE_TABLE
#include "opcode/ft32.h"
-#include "dis-asm.h"
+#include "disassemble.h"
extern const ft32_opc_info_t ft32_opc_info[128];
static fprintf_ftype fpr;
static void *stream;
+static int
+sign_extend(int bit, int value)
+{
+ int onebit = (1 << bit);
+ return (value & (onebit - 1)) - (value & onebit);
+}
+
int
print_insn_ft32 (bfd_vma addr, struct disassemble_info *info)
{
case FT32_FLD_RIMM:
imm = (iword >> FT32_FLD_RIMM_BIT) & ((1 << FT32_FLD_RIMM_SIZ) - 1);
if (imm & 0x400)
- info->print_address_func ((bfd_vma) imm & 0x1ff, info);
+ fpr(stream, "%d", sign_extend(9, imm));
else
fpr(stream, "$r%d", imm & 0x1f);
break;
break;
case FT32_FLD_K20:
imm = iword & ((1 << FT32_FLD_K20_SIZ) - 1);
- info->print_address_func ((bfd_vma) imm, info);
+ fpr(stream, "%d", sign_extend(19, imm));
break;
case FT32_FLD_PA:
imm = (iword & ((1 << FT32_FLD_PA_SIZ) - 1)) << 2;
break;
case FT32_FLD_AA:
imm = iword & ((1 << FT32_FLD_AA_SIZ) - 1);
- info->print_address_func ((bfd_vma) imm, info);
- break;
+ info->print_address_func ((1 << 23) | (bfd_vma) imm, info);
break;
case FT32_FLD_K16:
imm = iword & ((1 << FT32_FLD_K16_SIZ) - 1);
- info->print_address_func ((bfd_vma) imm, info);
+ fpr(stream, "%d", imm);
break;
case FT32_FLD_K8:
imm = iword & ((1 << FT32_FLD_K8_SIZ) - 1);
- info->print_address_func ((bfd_vma) imm, info);
- break;
+ fpr(stream, "%d", sign_extend(7, imm));
break;
case FT32_FLD_R_D_POST:
fpr(stream, "$r%d", (iword >> FT32_FLD_R_D_BIT) & 0x1f);