asm_vax.c File Reference

#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <rz_types.h>
#include <rz_util.h>
#include <rz_lib.h>
#include <rz_asm.h>
#include "disas-asm.h"
#include "../arch/vax/vax.h"

Go to the source code of this file.

Functions
static int	vax_buffer_read_memory (bfd_vma memaddr, bfd_byte *myaddr, ut32 length, struct disassemble_info *info)
static int	symbol_at_address (bfd_vma addr, struct disassemble_info *info)
static void	memory_error_func (int status, bfd_vma memaddr, struct disassemble_info *info)
static int	disassemble (RzAsm *a, RzAsmOp *op, const ut8 *buf, int len)

Variables
static unsigned long	Offset = 0
static RzStrBuf *	buf_global = NULL
static const ut8 *	bytes = NULL
static int	bytes_size = 0
RzAsmPlugin	rz_asm_plugin_vax
RZ_API RzLibStruct	rizin_plugin

Function Documentation

disassemble()

static int disassemble ( RzAsm *  a, RzAsmOp *  op, const ut8 *  buf, int  len  )

static

Definition at line 46 of file asm_vax.c.

                                                                       {
    struct disassemble_info disasm_obj;
    if (len < 4) {
        return -1;
    }
    buf_global = &op->buf_asm;
    bytes = buf;
    bytes_size = len;
    Offset = a->pc;
 
    /* prepare disassembler */
    memset(&disasm_obj, '\0', sizeof(struct disassemble_info));
    disasm_obj.buffer = (ut8 *)bytes;
    disasm_obj.read_memory_func = &vax_buffer_read_memory;
    disasm_obj.symbol_at_address_func = &symbol_at_address;
    disasm_obj.memory_error_func = &memory_error_func;
    disasm_obj.print_address_func = &generic_print_address_func;
    disasm_obj.endian = BFD_ENDIAN_LITTLE;
    disasm_obj.fprintf_func = &generic_fprintf_func;
    disasm_obj.stream = stdout;
    op->size = print_insn_vax((bfd_vma)Offset, &disasm_obj);
 
    if (op->size == -1) {
        rz_asm_op_set_asm(op, "(data)");
    }
    return op->size;
}

References a, BFD_ENDIAN_LITTLE, buf_global, disassemble_info::buffer, bytes, bytes_size, disassemble_info::endian, disassemble_info::fprintf_func, len, memory_error_func(), disassemble_info::memory_error_func, memset(), Offset, disassemble_info::print_address_func, print_insn_vax(), disassemble_info::read_memory_func, rz_asm_op_set_asm(), disassemble_info::stream, symbol_at_address(), disassemble_info::symbol_at_address_func, and vax_buffer_read_memory().

memory_error_func()

static void memory_error_func ( int  status, bfd_vma  memaddr, struct disassemble_info *  info  )

static

Definition at line 39 of file asm_vax.c.

                                                                                          {
    //--
}

Referenced by disassemble().

symbol_at_address()

static int symbol_at_address ( bfd_vma  addr, struct disassemble_info *  info  )

static

Definition at line 35 of file asm_vax.c.

                                                                          {
    return 0;
}

Referenced by disassemble().

vax_buffer_read_memory()

static int vax_buffer_read_memory ( bfd_vma  memaddr, bfd_byte *  myaddr, ut32  length, struct disassemble_info *  info  )

static

Definition at line 23 of file asm_vax.c.

                                                                                                                 {
    int delta = (memaddr - Offset);
    if (delta < 0) {
        return -1; // disable backward reads
    }
    if (delta > length) {
        return -1;
    }
    memcpy(myaddr, bytes + delta, RZ_MIN(length, bytes_size));
    return 0;
}

References bytes, bytes_size, delta, length, memcpy(), Offset, and RZ_MIN.

Referenced by disassemble().

Variable Documentation

buf_global

RzStrBuf* buf_global = NULL

static

Definition at line 19 of file asm_vax.c.

Referenced by disassemble().

bytes

const ut8* bytes = NULL

static

Definition at line 20 of file asm_vax.c.

Referenced by disassemble(), and vax_buffer_read_memory().

bytes_size

int bytes_size = 0

static

Definition at line 21 of file asm_vax.c.

Referenced by disassemble(), print_hex_from_base2(), and vax_buffer_read_memory().

Offset

unsigned long Offset = 0

static

Definition at line 18 of file asm_vax.c.

Referenced by disassemble(), and vax_buffer_read_memory().

rizin_plugin

RZ_API RzLibStruct rizin_plugin

Initial value:

= {
    .type = RZ_LIB_TYPE_ASM,
    .data = &rz_asm_plugin_vax,
    .version = RZ_VERSION
}

Definition at line 85 of file asm_vax.c.

rz_asm_plugin_vax

RzAsmPlugin rz_asm_plugin_vax

Initial value:

= {
    .name = "vax",
    .arch = "vax",
    .license = "GPL3",
    .bits = 8 | 32,
    .endian = RZ_SYS_ENDIAN_LITTLE,
    .desc = "VAX",
    .disassemble = &disassemble
}

Definition at line 74 of file asm_vax.c.