i8080dis.c File Reference

#include <string.h>
#include <stdio.h>
#include <assert.h>

Go to the source code of this file.

Classes
struct	arg_t
struct	opcode_t

Functions
static void	arg (char *s, int const cmd, struct arg_t const *arg, int val)
static int	i8080_disasm (unsigned char const *const code, char *text, int text_sz)

Variables
static char *	reg [] = { "b", "c", "d", "e", "h", "l", "m", "a" }
static char *	rp [] = { "b", "d", "h", "sp" }
static char *	push_rp [] = { "b", "d", "h", "psw" }
static char *	cond [] = { "nz", "z", "nc", "c", "po", "pe", "p", "m" }
static char *	rst [] = { "0", "1", "2", "3", "4", "5", "6", "7" }
static struct opcode_t	opcodes []

Function Documentation

arg()

static void arg ( char *  s, int const  cmd, struct arg_t const *  arg, int  val  )

static

Definition at line 115 of file i8080dis.c.

                                                                          {
  if (arg->type == 3) {
    strcat(s, arg->fmt[(cmd >> arg->shift) & arg->mask]);
  } else {
    if (arg->type == 1)
      sprintf(s, "%02X", val & 0xff);
    else if (arg->type == 2)
      sprintf(s, "%04X", val);
  }
}

References cmd, s, sprintf, and val.

Referenced by i8080_disasm().

i8080_disasm()

static int i8080_disasm ( unsigned char const *const  code, char *  text, int  text_sz  )

static

Definition at line 126 of file i8080dis.c.

                                                                                  {
  int const cmd = code[0];
  int const p = code[1] | (code[2] << 8);
 
  struct opcode_t const *op;
  for (op = &opcodes[0]; op->size; ++op) {
    int const grp = cmd &
      ~((op->arg1.mask << op->arg1.shift) | 
       (op->arg2.mask << op->arg2.shift));
    int const branch = (grp == 0xc0 || grp == 0xc2 || grp == 0xc4);
    if (grp == op->cmd) {
      strcpy(text, op->name);
      if (!branch) strcat(text, " ");
      arg(text + strlen(text), cmd, &op->arg1, p);
      if (op->arg2.type != 0) strcat(text, (branch ? " " : ", "));
      arg(text + strlen(text), cmd, &op->arg2, p);
      return op->size;
    }
  }
  snprintf(text, text_sz, "db @ 0x%02x", cmd);
  return 1;
}

References arg(), test-lz4-speed::branch, cmd, const, op, opcodes, p, snprintf, and create_tags_rz::text.

Variable Documentation

cond

char* cond[] = { "nz", "z", "nc", "c", "po", "pe", "p", "m" }

static

Definition at line 38 of file i8080dis.c.

opcodes

struct opcode_t opcodes[]

static

Referenced by i8080_disasm().

push_rp

char* push_rp[] = { "b", "d", "h", "psw" }

static

Definition at line 37 of file i8080dis.c.

reg

char* reg[] = { "b", "c", "d", "e", "h", "l", "m", "a" }

static

Definition at line 35 of file i8080dis.c.

rp

char* rp[] = { "b", "d", "h", "sp" }

static

Definition at line 36 of file i8080dis.c.

Referenced by _nettle_aes_set_key(), classdump_objc(), combine_sequences(), dem_str_replace_char(), dem_string_replace_char(), get_rp(), rz_file_abspath_rel(), rz_path_realpath(), rz_print_hexii(), rz_pseudo_convert(), rz_socket_connect(), and rz_socket_spawn().

rst

char* rst[] = { "0", "1", "2", "3", "4", "5", "6", "7" }

static

Definition at line 39 of file i8080dis.c.