Yoshinori Sato <ys...@users.sourceforge.jp> writes:
> Signed-off-by: Yoshinori Sato <ys...@users.sourceforge.jp> > --- > include/disas/dis-asm.h | 5 + > target/rx/disas.c | 1481 > +++++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 1486 insertions(+) > create mode 100644 target/rx/disas.c > > diff --git a/include/disas/dis-asm.h b/include/disas/dis-asm.h > index 9240ec32c2..de17792e88 100644 > --- a/include/disas/dis-asm.h > +++ b/include/disas/dis-asm.h > @@ -226,6 +226,10 @@ enum bfd_architecture > #define bfd_mach_nios2r2 2 > bfd_arch_lm32, /* Lattice Mico32 */ > #define bfd_mach_lm32 1 > + bfd_arch_rx, /* Renesas RX */ > +#define bfd_mach_rx 0x75 > +#define bfd_mach_rx_v2 0x76 > +#define bfd_mach_rx_v3 0x77 > bfd_arch_last > }; > #define bfd_mach_s390_31 31 > @@ -433,6 +437,7 @@ int print_insn_little_nios2 (bfd_vma, > disassemble_info*); > int print_insn_xtensa (bfd_vma, disassemble_info*); > int print_insn_riscv32 (bfd_vma, disassemble_info*); > int print_insn_riscv64 (bfd_vma, disassemble_info*); > +int print_insn_rx(bfd_vma, disassemble_info *); > > #if 0 > /* Fetch the disassembler for a given BFD, if that support is available. */ > diff --git a/target/rx/disas.c b/target/rx/disas.c > new file mode 100644 > index 0000000000..014fadfca3 > --- /dev/null > +++ b/target/rx/disas.c > @@ -0,0 +1,1481 @@ > +/* > + * Renesas RX Disassembler > + * > + * Copyright (c) 2019 Yoshinori Sato <ys...@users.sourceforge.jp> > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms and conditions of the GNU General Public License, > + * version 2 or later, as published by the Free Software Foundation. > + * > + * This program is distributed in the hope it will be useful, but WITHOUT > + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or > + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for > + * more details. > + * > + * You should have received a copy of the GNU General Public License along > with > + * this program. If not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include "qemu/osdep.h" > +#include "disas/dis-asm.h" > +#include "qemu/bitops.h" > +#include "cpu.h" > + > +typedef struct DisasContext { > + disassemble_info *dis; > + uint32_t addr; > + uint32_t pc; > +} DisasContext; > + > + > +static uint32_t decode_load_bytes(DisasContext *ctx, uint32_t insn, > + int i, int n) > +{ > + bfd_byte buf; > + while (++i <= n) { > + ctx->dis->read_memory_func(ctx->addr++, &buf, 1, ctx->dis); > + insn |= buf << (32 - i * 8); > + } > + return insn; > +} > + > +static int32_t li(DisasContext *ctx, int sz) > +{ > + int32_t addr; > + bfd_byte buf[4]; > + addr = ctx->addr; > + > + switch (sz) { > + case 1: > + ctx->addr += 1; > + ctx->dis->read_memory_func(addr, buf, 1, ctx->dis); > + return buf[0]; > + case 2: > + ctx->addr += 2; > + ctx->dis->read_memory_func(addr, buf, 2, ctx->dis); > + return buf[1] << 8 | buf[0]; > + case 3: > + ctx->addr += 3; > + ctx->dis->read_memory_func(addr, buf, 3, ctx->dis); > + return buf[2] << 16 | buf[1] << 8 | buf[0]; > + case 0: > + ctx->addr += 4; > + ctx->dis->read_memory_func(addr, buf, 4, ctx->dis); > + return buf[3] << 24 | buf[2] << 16 | buf[1] << 8 | buf[0]; > + default: > + g_assert_not_reached(); > + } > +} > + > +static int bdsp_s(DisasContext *ctx, int d) > +{ > + /* > + * 0 -> 8 > + * 1 -> 9 > + * 2 -> 10 > + * 3 -> 3 > + * : > + * 7 -> 7 > + */ > + if (d < 3) { > + d += 8; > + } > + return d; > +} > + > +/* Include the auto-generated decoder. */ > +#include "decode.inc.c" This introduces a dependency on a generated file so you'll need: target/rx/disas.o: target/rx/decode.inc.c in Makefile.objs -- Alex Bennée
