h8300_disas.c File Reference

#include <rz_types.h>
#include <rz_util.h>
#include "h8300_disas.h"

Go to the source code of this file.

Functions
static int	decode_opcode_4bit (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_opcode (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_eepmov (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_ldc (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_r162r16 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_andc (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_adds (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_bsr (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_imm162r16 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_disp162r16 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_pop (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_indinc162r16 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_ind162r16 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_imm2r8 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_imm2ind16 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_imm2abs8 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_r2r8 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_rzind16 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_rzabs8 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_subs (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_daa (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_r82r16 (const ut8 *bytes, struct h8300_cmd *cmd)
int	decode_jmp_abs16 (const ut8 *bytes, struct h8300_cmd *cmd)
int	decode_jmp_abs8 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_jmp_ind (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_abs162r16 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_r82ind16 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_r82dispr16 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_r82rdec16 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_r82abs16 (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_nop (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_abs2r_short (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_rzimm_short (const ut8 *bytes, struct h8300_cmd *cmd)
static int	decode_imm2r_short (const ut8 *bytes, struct h8300_cmd *cmd)
int	h8300_decode_command (const ut8 *instr, struct h8300_cmd *cmd)

Variables
static const char *	commands_4bit []
static const char *	commands []
static const char *	commands_9bit []

Function Documentation

decode_abs162r16()

static int decode_abs162r16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 610 of file h8300_disas.c.

                                                                     {
    int ret = 4;
    ut16 abs;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    abs = rz_read_at_be16(bytes, 2);
    if (bytes[1] & 0x80) {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN,
            "r%u,@0x%x:16", bytes[1] & 0x7, abs);
    } else {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN, "@0x%x:16,r%u",
            abs, bytes[1] & 0x7);
    }
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, rz_read_at_be16(), and snprintf.

Referenced by h8300_decode_command().

decode_abs2r_short()

static int decode_abs2r_short ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 737 of file h8300_disas.c.

                                                                       {
    int ret = 2;
 
    if (decode_opcode_4bit(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN,
        "@0x%x:8,r%u%c",
        bytes[1], bytes[0] & 0x7,
        bytes[0] & 0x8 ? 'l' : 'h');
 
    return ret;
}

References bytes, cmd, decode_opcode_4bit(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_adds()

static int decode_adds ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 284 of file h8300_disas.c.

                                                                {
    int ret = 2;
    unsigned reg, val;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    reg = bytes[1] & 0x7;
 
    if (bytes[1] & 0x80) {
        val = 2;
    } else {
        val = 1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "#%u,r%u", val, reg);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, reg, snprintf, and val.

Referenced by h8300_decode_command().

decode_andc()

static int decode_andc ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 272 of file h8300_disas.c.

                                                                {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "#0x%x:8,ccr", bytes[1]);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_bsr()

static int decode_bsr ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 305 of file h8300_disas.c.

                                                               {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, ".%d",
        (st8)bytes[1]);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, snprintf, and st8.

Referenced by h8300_decode_command().

decode_daa()

static int decode_daa ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 523 of file h8300_disas.c.

                                                               {
    int ret = 2;
 
    if (bytes[0] == 0x17 && bytes[1] >> 4 == 0) {
        strncpy(cmd->instr, "not", H8300_INSTR_MAXLEN - 1);
        cmd->instr[H8300_INSTR_MAXLEN - 1] = '\0';
    } else if (bytes[0] == 0x12 && bytes[1] >> 4 == 0) {
        strncpy(cmd->instr, "rotxl", H8300_INSTR_MAXLEN - 1);
        cmd->instr[H8300_INSTR_MAXLEN - 1] = '\0';
    } else if (bytes[0] == 0x13 && bytes[1] >> 4 == 0) {
        strncpy(cmd->instr, "rotxr", H8300_INSTR_MAXLEN - 1);
        cmd->instr[H8300_INSTR_MAXLEN - 1] = '\0';
    } else if (bytes[0] == 0x10 && bytes[1] >> 4 == 0) {
        strncpy(cmd->instr, "shll", H8300_INSTR_MAXLEN - 1);
    } else if (bytes[0] == 0x11 && bytes[1] >> 4 == 0) {
        strncpy(cmd->instr, "shlr", H8300_INSTR_MAXLEN - 1);
    } else if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "r%u%c",
        (bytes[1]) & 0x7,
        bytes[1] & 0x8 ? 'l' : 'h');
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_disp162r16()

static int decode_disp162r16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 335 of file h8300_disas.c.

                                                                      {
    int ret = 4;
    ut16 disp;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    disp = rz_read_at_be16(bytes, 2);
 
    if (bytes[1] & 0x80) {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN,
            "r%u,@(0x%x:16,r%u)",
            bytes[1] & 0x7, disp,
            (bytes[1] >> 4) & 0x7);
    } else {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN,
            "@(0x%x:16,r%u),r%u", disp,
            (bytes[1] >> 4) & 0x7, bytes[1] & 0x7);
    }
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, rz_read_at_be16(), and snprintf.

Referenced by h8300_decode_command().

decode_eepmov()

static int decode_eepmov ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 216 of file h8300_disas.c.

                                                                  {
    int ret = 4;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
    cmd->operands[0] = '\0';
 
    switch (bytes[0]) {
    case H8300_RTS:
    case H8300_RTE:
        ret = 2;
        break;
    }
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_RTE, and H8300_RTS.

Referenced by h8300_decode_command().

decode_imm162r16()

static int decode_imm162r16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 319 of file h8300_disas.c.

                                                                     {
    int ret = 4;
    ut16 imm;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    imm = rz_read_at_be16(bytes, 2);
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "#0x%x:16,r%u",
        imm, bytes[1] & 0x7);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, imm, rz_read_at_be16(), and snprintf.

Referenced by h8300_decode_command().

decode_imm2abs8()

static int decode_imm2abs8 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 448 of file h8300_disas.c.

                                                                    {
    int ret = 4;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "#0x%x:3,@0x%x:8",
        (bytes[3] >> 4) & 0x7, bytes[1]);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_imm2ind16()

static int decode_imm2ind16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 434 of file h8300_disas.c.

                                                                     {
    int ret = 4;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "#0x%x:3,@r%u",
        (bytes[3] >> 4) & 0x7, bytes[1] >> 4);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_imm2r8()

static int decode_imm2r8 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 419 of file h8300_disas.c.

                                                                  {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "#0x%x:3,r%u%c",
        (bytes[1] >> 4) & 0x7, bytes[1] & 0x7,
        bytes[1] & 0x8 ? 'l' : 'h');
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_imm2r_short()

static int decode_imm2r_short ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 766 of file h8300_disas.c.

                                                                       {
    int ret = 2;
 
    if (decode_opcode_4bit(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "#0x%x:8,r%u%c",
        bytes[1], bytes[0] & 0x7, bytes[0] & 0x8 ? 'l' : 'h');
 
    return ret;
}

References bytes, cmd, decode_opcode_4bit(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_ind162r16()

static int decode_ind162r16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 398 of file h8300_disas.c.

                                                                     {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    if (bytes[1] & 0x80) {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN, "r%u,@r%u",
            bytes[1] & 0x7,
            (bytes[1] >> 4) & 0x7);
    } else {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN, "@r%u,r%u",
            (bytes[1] >> 4) & 0x7,
            bytes[1] & 0x7);
    }
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_indinc162r16()

static int decode_indinc162r16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 374 of file h8300_disas.c.

                                                                        {
    int ret = 2;
    ut8 tmp = bytes[1] >> 4;
 
    if (bytes[0] == 0x6D && (tmp == 7 || tmp == 0xF)) {
        return decode_pop(bytes, cmd);
    }
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    if (bytes[1] & 0x80) {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN, "r%u,@-r%u",
            bytes[1] & 0x7, (bytes[1] >> 4) & 0x7);
    } else {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN, "@r%u+,r%u",
            (bytes[1] >> 4) & 0x7, bytes[1] & 0x7);
    }
 
    return ret;
}

References bytes, cmd, decode_opcode(), decode_pop(), H8300_INSTR_MAXLEN, snprintf, and autogen_x86imm::tmp.

Referenced by h8300_decode_command().

decode_jmp_abs16()

int decode_jmp_abs16	(	const ut8 *	bytes,
		struct h8300_cmd *	cmd
	)

Definition at line 567 of file h8300_disas.c.

                                                              {
    int ret = 4;
    ut16 abs;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    abs = rz_read_at_be16(bytes, 2);
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "@0x%x:16", abs);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, rz_read_at_be16(), and snprintf.

Referenced by h8300_decode_command().

decode_jmp_abs8()

int decode_jmp_abs8	(	const ut8 *	bytes,
		struct h8300_cmd *	cmd
	)

Definition at line 582 of file h8300_disas.c.

                                                             {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN,
        "@@0x%x:8", bytes[1]);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_jmp_ind()

static int decode_jmp_ind ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 596 of file h8300_disas.c.

                                                                   {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN,
        "@r%u", (bytes[1] >> 4) & 0x7);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_ldc()

static int decode_ldc ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 234 of file h8300_disas.c.

                                                               {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    if (bytes[0] == H8300_LDC_2 || bytes[0] == H8300_XORC ||
        bytes[0] == H8300_ORC) {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN,
            "#0x%x:8,ccr", bytes[1]);
    } else if (bytes[0] == H8300_LDC) {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN,
            "r%u%c,ccr", bytes[1] & 0x7,
            bytes[1] & 0x8 ? 'l' : 'h');
    } else if (bytes[0] == H8300_STC) {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN,
            "ccr,r%u%c", bytes[1] & 0x7,
            bytes[1] & 0x8 ? 'l' : 'h');
    }
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, H8300_LDC, H8300_LDC_2, H8300_ORC, H8300_STC, H8300_XORC, and snprintf.

Referenced by h8300_decode_command().

decode_nop()

static int decode_nop ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 725 of file h8300_disas.c.

                                                               {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    cmd->operands[0] = '\0';
 
    return ret;
}

References bytes, cmd, and decode_opcode().

Referenced by h8300_decode_command().

decode_opcode()

static int decode_opcode ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 143 of file h8300_disas.c.

                                                                  {
    ut16 ext_opcode;
 
    ext_opcode = (rz_read_be16(bytes)) >> 7;
 
    switch (ext_opcode) {
    case H8300_BOR:
    case H8300_BIOR:
    case H8300_BXOR:
    case H8300_BIXOR:
    case H8300_BAND:
    case H8300_BIAND:
    case H8300_BLD:
    case H8300_BILD:
    case H8300_BST:
    case H8300_BIST:
        if (ext_opcode >= sizeof(commands_9bit) / sizeof(void *) ||
            !commands_9bit[ext_opcode]) {
            break;
        }
        strncpy(cmd->instr, commands_9bit[ext_opcode], H8300_INSTR_MAXLEN - 1);
        cmd->instr[H8300_INSTR_MAXLEN - 1] = '\0';
        return 0;
    }
 
    switch (bytes[0]) {
    case H8300_BIAND_IMM2IND16:
    case H8300_BIAND_IMM2ABS8:
    case H8300_BCLR_R2IND16:
    case H8300_BCLR_R2ABS8:
        switch (bytes[2]) {
        case 0x74:
            strncpy(cmd->instr, bytes[3] & 0x80 ? "bior" : "bor",
                H8300_INSTR_MAXLEN - 1);
            return 0;
        case 0x76:
            strncpy(cmd->instr, bytes[3] & 0x80 ? "biand" : "band",
                H8300_INSTR_MAXLEN - 1);
            return 0;
        case 0x77:
            strncpy(cmd->instr, bytes[3] & 0x80 ? "bild" : "bld",
                H8300_INSTR_MAXLEN - 1);
            return 0;
        case 0x67:
            strncpy(cmd->instr, bytes[3] & 0x80 ? "bist" : "bst",
                H8300_INSTR_MAXLEN - 1);
            return 0;
        case 0x75:
            strncpy(cmd->instr, bytes[3] & 0x80 ? "bixor" : "bxor",
                H8300_INSTR_MAXLEN - 1);
            return 0;
        case 0x60:
        case 0x70:
            strncpy(cmd->instr, "bset", H8300_INSTR_MAXLEN - 1);
            return 0;
        case 0x61:
        case 0x71:
            strncpy(cmd->instr, "bnot", H8300_INSTR_MAXLEN - 1);
            return 0;
        }
        break;
    }
 
    if (bytes[0] >= sizeof(commands) / sizeof(void *) || !commands[bytes[0]]) {
        return -1;
    }
 
    strncpy(cmd->instr, commands[bytes[0]], H8300_INSTR_MAXLEN - 1);
    cmd->instr[H8300_INSTR_MAXLEN - 1] = '\0';
 
    return 0;
}

References bytes, cmd, commands, commands_9bit, H8300_BAND, H8300_BCLR_R2ABS8, H8300_BCLR_R2IND16, H8300_BIAND, H8300_BIAND_IMM2ABS8, H8300_BIAND_IMM2IND16, H8300_BILD, H8300_BIOR, H8300_BIST, H8300_BIXOR, H8300_BLD, H8300_BOR, H8300_BST, H8300_BXOR, H8300_INSTR_MAXLEN, and rz_read_be16().

Referenced by decode_abs162r16(), decode_adds(), decode_andc(), decode_bsr(), decode_daa(), decode_disp162r16(), decode_eepmov(), decode_imm162r16(), decode_imm2abs8(), decode_imm2ind16(), decode_imm2r8(), decode_ind162r16(), decode_indinc162r16(), decode_jmp_abs16(), decode_jmp_abs8(), decode_jmp_ind(), decode_ldc(), decode_nop(), decode_r162r16(), decode_r2r8(), decode_r82abs16(), decode_r82dispr16(), decode_r82ind16(), decode_r82r16(), decode_r82rdec16(), decode_rzabs8(), decode_rzind16(), and decode_subs().

decode_opcode_4bit()

static int decode_opcode_4bit ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 130 of file h8300_disas.c.

                                                                       {
    ut8 opcode = bytes[0] >> 4;
 
    if (opcode >= sizeof(commands_4bit) / sizeof(void *) || !commands_4bit[opcode]) {
        return -1;
    }
 
    strncpy(cmd->instr, commands_4bit[opcode], H8300_INSTR_MAXLEN - 1);
    cmd->instr[H8300_INSTR_MAXLEN - 1] = '\0';
 
    return 0;
}

References bytes, cmd, commands_4bit, and H8300_INSTR_MAXLEN.

Referenced by decode_abs2r_short(), decode_imm2r_short(), and decode_rzimm_short().

decode_pop()

static int decode_pop ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 359 of file h8300_disas.c.

                                                               {
    int ret = 2;
    ut8 tmp = bytes[1] >> 4;
 
    strncpy(cmd->instr, tmp == 0x7 ? "pop" : "push",
        H8300_INSTR_MAXLEN - 1);
    cmd->instr[H8300_INSTR_MAXLEN - 1] = '\0';
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN,
        "r%u", bytes[1] & 0x7);
 
    return ret;
}

References bytes, cmd, H8300_INSTR_MAXLEN, snprintf, and autogen_x86imm::tmp.

Referenced by decode_indinc162r16().

decode_r162r16()

static int decode_r162r16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 258 of file h8300_disas.c.

                                                                   {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "r%u,r%u",
        bytes[1] >> 4,
        bytes[1] & 0x7);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_r2r8()

static int decode_r2r8 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 462 of file h8300_disas.c.

                                                                {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "r%u%c,r%u%c",
        (bytes[1] >> 4) & 0x7,
        bytes[1] & 0x80 ? 'l' : 'h',
        bytes[1] & 0x7, bytes[1] & 0x8 ? 'l' : 'h');
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_r82abs16()

static int decode_r82abs16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 699 of file h8300_disas.c.

                                                                    {
    int ret = 4;
    ut16 abs;
 
    if (bytes[0] == 0x6A && bytes[1] >> 4 == 4) {
        strncpy(cmd->instr, "movfpe", H8300_INSTR_MAXLEN);
    } else if (bytes[0] == 0x6A && bytes[1] >> 4 == 0xC) {
        strncpy(cmd->instr, "movtpe", H8300_INSTR_MAXLEN);
    } else if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    abs = rz_read_at_be16(bytes, 2);
 
    if (bytes[1] & 0x80) {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN, "r%u%c,@0x%x:16",
            bytes[1] & 0x7, bytes[1] & 0x8 ? 'l' : 'h', abs);
    } else {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN, "@0x%x:16,r%u%c",
            abs, bytes[1] & 0x7,
            bytes[1] & 0x8 ? 'l' : 'h');
    }
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, rz_read_at_be16(), and snprintf.

Referenced by h8300_decode_command().

decode_r82dispr16()

static int decode_r82dispr16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 652 of file h8300_disas.c.

                                                                      {
    int ret = 4;
    ut16 disp;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    disp = rz_read_at_be16(bytes, 2);
    if (bytes[1] & 0x80) {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN,
            "r%u%c,@(0x%x:16,r%u)",
            bytes[1] & 0x7, bytes[1] & 0x8 ? 'l' : 'h',
            disp, (bytes[1] >> 4) & 0x7);
    } else {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN,
            "@(0x%x:16,r%u),r%u%c",
            disp, (bytes[1] >> 4) & 0x7,
            bytes[1] & 0x7, bytes[1] & 0x8 ? 'l' : 'h');
    }
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, rz_read_at_be16(), and snprintf.

Referenced by h8300_decode_command().

decode_r82ind16()

static int decode_r82ind16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 631 of file h8300_disas.c.

                                                                    {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    if (bytes[1] & 0x80) {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN, "r%u%c,@r%u",
            bytes[1] & 0x7, bytes[1] & 0x8 ? 'l' : 'h',
            (bytes[1] >> 4) & 0x7);
    } else {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN, "@r%u,r%u%c",
            (bytes[1] >> 4) & 0x7,
            bytes[1] & 0x7, bytes[1] & 0x8 ? 'l' : 'h');
    }
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_r82r16()

static int decode_r82r16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 551 of file h8300_disas.c.

                                                                  {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "r%u%c,r%u",
        (bytes[1] >> 4) & 0x7,
        bytes[1] & 0x80 ? 'l' : 'h',
        bytes[1] & 0x7);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_r82rdec16()

static int decode_r82rdec16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 676 of file h8300_disas.c.

                                                                     {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    if (bytes[1] & 0x80) {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN,
            "r%u%c,@-r%u",
            bytes[1] & 0x7, bytes[1] & 0x8 ? 'l' : 'h',
            (bytes[1] >> 4) & 0x7);
    } else {
        snprintf(cmd->operands, H8300_INSTR_MAXLEN,
            "@r%u+,r%u%c",
            (bytes[1] >> 4) & 0x7,
            bytes[1] & 0x7, bytes[1] & 0x8 ? 'l' : 'h');
    }
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_rzabs8()

static int decode_rzabs8 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 494 of file h8300_disas.c.

                                                                  {
    int ret = 4;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "r%u%c,@0x%x:8",
        (bytes[3] >> 4) & 0x7,
        bytes[3] & 0x80 ? 'l' : 'h',
        bytes[1]);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_rzimm_short()

static int decode_rzimm_short ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 752 of file h8300_disas.c.

                                                                       {
    int ret = 2;
 
    if (decode_opcode_4bit(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN,
        "r%u%c,@0x%x:8",
        bytes[0] & 0x7, bytes[0] & 0x8 ? 'l' : 'h',
        bytes[1]);
    return ret;
}

References bytes, cmd, decode_opcode_4bit(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_rzind16()

static int decode_rzind16 ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 478 of file h8300_disas.c.

                                                                   {
    int ret = 4;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "r%u%c,@r%u",
        (bytes[3] >> 4) & 0x7,
        bytes[3] & 0x80 ? 'l' : 'h',
        bytes[1] >> 4);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

decode_subs()

static int decode_subs ( const ut8 *  bytes, struct h8300_cmd *  cmd  )

static

Definition at line 509 of file h8300_disas.c.

                                                                {
    int ret = 2;
 
    if (decode_opcode(bytes, cmd)) {
        return -1;
    }
 
    snprintf(cmd->operands, H8300_INSTR_MAXLEN, "#%u,r%u",
        bytes[1] & 0x80 ? 2 : 1, bytes[1] & 0x7);
 
    return ret;
}

References bytes, cmd, decode_opcode(), H8300_INSTR_MAXLEN, and snprintf.

Referenced by h8300_decode_command().

h8300_decode_command()

int h8300_decode_command	(	const ut8 *	instr,
		struct h8300_cmd *	cmd
	)

Definition at line 779 of file h8300_disas.c.

                                                                  {
    int ret = 0;
 
    switch (instr[0] >> 4) {
    case H8300_MOV_4BIT_3:
        ret = decode_rzimm_short(instr, cmd);
        break;
    case H8300_MOV_4BIT_2:
        ret = decode_abs2r_short(instr, cmd);
        break;
    case H8300_AND_4BIT:
    case H8300_ADDX_4BIT:
    case H8300_ADD_4BIT:
    case H8300_CMP_4BIT:
    case H8300_MOV_4BIT:
    case H8300_OR_4BIT:
    case H8300_SUBX_4BIT:
    case H8300_XOR_4BIT:
        ret = decode_imm2r_short(instr, cmd);
        break;
    }
 
    if (ret) {
        {
            return ret;
        }
    }
 
    switch (instr[0]) {
    case H8300_ANDC:
        ret = decode_andc(instr, cmd);
        break;
    case H8300_SUBS:
        ret = decode_subs(instr, cmd);
        break;
    case H8300_ADDW_DIRECT:
    case H8300_CMP_2:
        ret = decode_r162r16(instr, cmd);
        break;
    case H8300_ADDS:
        ret = decode_adds(instr, cmd);
        break;
    case H8300_BAND_BIAND:
    case H8300_BCLR_IMM2R8:
    case H8300_BST_BIST:
    case H8300_BTST:
    case H8300_BILD_IMM2R8:
    case H8300_BOR_BIOR:
    case H8300_BXOR_BIXOR:
    case H8300_BNOT_2:
    case H8300_BSET_2:
        ret = decode_imm2r8(instr, cmd);
        break;
    case H8300_AND:
    case H8300_ADDB_DIRECT:
    case H8300_BCLR_R2R8:
    case H8300_SUB_1:
    case H8300_SUBX:
    case H8300_ADDX:
    case H8300_XOR:
    case H8300_BNOT_1:
    case H8300_BSET_1:
    case H8300_CMP_1:
    case H8300_MOV_1:
    case H8300_BTST_R2R8:
        ret = decode_r2r8(instr, cmd);
        break;
    case H8300_BCLR_R2IND16:
        switch (instr[2]) {
        case 0x60:
        case 0x61:
        case 0x62:
            ret = decode_rzind16(instr, cmd);
            break;
        case 0x70:
        case 0x71:
        case 0x72:
        case 0x67:
        case 0x75:
            ret = decode_imm2ind16(instr, cmd);
            break;
        default:
            ret = -1;
        }
        break;
    case H8300_BCLR_R2ABS8:
        switch (instr[2]) {
        case 0x60:
        case 0x61:
        case 0x62:
            ret = decode_rzabs8(instr, cmd);
            break;
        case 0x67:
        case 0x70:
        case 0x71:
        case 0x72:
            ret = decode_imm2abs8(instr, cmd);
            break;
        default:
            ret = -1;
        }
        break;
    case H8300_BIAND_IMM2IND16:
        ret = decode_imm2ind16(instr, cmd);
        break;
    case H8300_BIAND_IMM2ABS8:
        ret = decode_imm2abs8(instr, cmd);
        break;
    case H8300_BSR:
        ret = decode_bsr(instr, cmd);
        break;
    case H8300_NOP:
        ret = decode_nop(instr, cmd);
        break;
    case H8300_DAA:
    case H8300_DAS:
    case H8300_DEC:
    case H8300_INC:
    case H8300_NOT_NEG:
    case H8300_ROTL:
    case H8300_ROTR:
    case H8300_SHL:
    case H8300_SHR:
        ret = decode_daa(instr, cmd);
        break;
    case H8300_DIVXU:
    case H8300_MULXU:
        ret = decode_r82r16(instr, cmd);
        break;
    case H8300_EEPMOV:
    case H8300_RTS:
    case H8300_RTE:
    case H8300_SLEEP:
        ret = decode_eepmov(instr, cmd);
        break;
    case H8300_JMP_1:
    case H8300_JSR_1:
        ret = decode_jmp_ind(instr, cmd);
        break;
    case H8300_JMP_2:
    case H8300_JSR_2:
        ret = decode_jmp_abs16(instr, cmd);
        break;
    case H8300_JMP_3:
    case H8300_JSR_3:
    case H8300_BRA:
    case H8300_BRN:
    case H8300_BHI:
    case H8300_BLS:
    case H8300_BCC:
    case H8300_BCS:
    case H8300_BNE:
    case H8300_BEQ:
    case H8300_BVC:
    case H8300_BVS:
    case H8300_BPL:
    case H8300_BMI:
    case H8300_BGE:
    case H8300_BLT:
    case H8300_BGT:
    case H8300_BLE:
        ret = decode_jmp_abs8(instr, cmd);
        break;
    case H8300_ORC:
    case H8300_LDC:
    case H8300_LDC_2:
    case H8300_STC:
    case H8300_XORC:
        ret = decode_ldc(instr, cmd);
        break;
    case H8300_OR:
        ret = decode_r2r8(instr, cmd);
        break;
    case H8300_MOV_2:
    case H8300_SUBW:
        ret = decode_r162r16(instr, cmd);
        break;
    case H8300_MOV_IMM162R16:
        ret = decode_imm162r16(instr, cmd);
        break;
    case H8300_MOV_IND162R16:
        ret = decode_ind162r16(instr, cmd);
        break;
    case H8300_MOV_DISP162R16:
        ret = decode_disp162r16(instr, cmd);
        break;
    case H8300_MOV_INDINC162R16:
        ret = decode_indinc162r16(instr, cmd);
        break;
    case H8300_MOV_ABS162R16:
        ret = decode_abs162r16(instr, cmd);
        break;
    case H8300_MOV_R82IND16:
        ret = decode_r82ind16(instr, cmd);
        break;
    case H8300_MOV_R82DISPR16:
        ret = decode_r82dispr16(instr, cmd);
        break;
    case H8300_MOV_R82RDEC16:
        ret = decode_r82rdec16(instr, cmd);
        break;
    case H8300_MOV_R82ABS16:
        ret = decode_r82abs16(instr, cmd);
        break;
    default:
        return -1;
    }
 
    return ret;
}

References cmd, decode_abs162r16(), decode_abs2r_short(), decode_adds(), decode_andc(), decode_bsr(), decode_daa(), decode_disp162r16(), decode_eepmov(), decode_imm162r16(), decode_imm2abs8(), decode_imm2ind16(), decode_imm2r8(), decode_imm2r_short(), decode_ind162r16(), decode_indinc162r16(), decode_jmp_abs16(), decode_jmp_abs8(), decode_jmp_ind(), decode_ldc(), decode_nop(), decode_r162r16(), decode_r2r8(), decode_r82abs16(), decode_r82dispr16(), decode_r82ind16(), decode_r82r16(), decode_r82rdec16(), decode_rzabs8(), decode_rzimm_short(), decode_rzind16(), decode_subs(), H8300_ADD_4BIT, H8300_ADDB_DIRECT, H8300_ADDS, H8300_ADDW_DIRECT, H8300_ADDX, H8300_ADDX_4BIT, H8300_AND, H8300_AND_4BIT, H8300_ANDC, H8300_BAND_BIAND, H8300_BCC, H8300_BCLR_IMM2R8, H8300_BCLR_R2ABS8, H8300_BCLR_R2IND16, H8300_BCLR_R2R8, H8300_BCS, H8300_BEQ, H8300_BGE, H8300_BGT, H8300_BHI, H8300_BIAND_IMM2ABS8, H8300_BIAND_IMM2IND16, H8300_BILD_IMM2R8, H8300_BLE, H8300_BLS, H8300_BLT, H8300_BMI, H8300_BNE, H8300_BNOT_1, H8300_BNOT_2, H8300_BOR_BIOR, H8300_BPL, H8300_BRA, H8300_BRN, H8300_BSET_1, H8300_BSET_2, H8300_BSR, H8300_BST_BIST, H8300_BTST, H8300_BTST_R2R8, H8300_BVC, H8300_BVS, H8300_BXOR_BIXOR, H8300_CMP_1, H8300_CMP_2, H8300_CMP_4BIT, H8300_DAA, H8300_DAS, H8300_DEC, H8300_DIVXU, H8300_EEPMOV, H8300_INC, H8300_JMP_1, H8300_JMP_2, H8300_JMP_3, H8300_JSR_1, H8300_JSR_2, H8300_JSR_3, H8300_LDC, H8300_LDC_2, H8300_MOV_1, H8300_MOV_2, H8300_MOV_4BIT, H8300_MOV_4BIT_2, H8300_MOV_4BIT_3, H8300_MOV_ABS162R16, H8300_MOV_DISP162R16, H8300_MOV_IMM162R16, H8300_MOV_IND162R16, H8300_MOV_INDINC162R16, H8300_MOV_R82ABS16, H8300_MOV_R82DISPR16, H8300_MOV_R82IND16, H8300_MOV_R82RDEC16, H8300_MULXU, H8300_NOP, H8300_NOT_NEG, H8300_OR, H8300_OR_4BIT, H8300_ORC, H8300_ROTL, H8300_ROTR, H8300_RTE, H8300_RTS, H8300_SHL, H8300_SHR, H8300_SLEEP, H8300_STC, H8300_SUB_1, H8300_SUBS, H8300_SUBW, H8300_SUBX, H8300_SUBX_4BIT, H8300_XOR, H8300_XOR_4BIT, and H8300_XORC.

Referenced by disassemble(), and h8300_op().

Variable Documentation

commands

const char* commands[]

static

Definition at line 21 of file h8300_disas.c.

Referenced by decode_opcode(), and mach0_info_new().

commands_4bit

const char* commands_4bit[]

static

Initial value:

= {
    [H8300_MOV_4BIT_2] = "mov.b",
    [H8300_MOV_4BIT_3] = "mov.b",
    [H8300_ADD_4BIT] = "add.b",
    [H8300_ADDX_4BIT] = "addx",
    [H8300_CMP_4BIT] = "cmp.b",
    [H8300_SUBX_4BIT] = "subx",
    [H8300_OR_4BIT] = "or",
    [H8300_XOR_4BIT] = "xor",
    [H8300_AND_4BIT] = "and",
    [H8300_MOV_4BIT] = "mov.b"
}

Definition at line 8 of file h8300_disas.c.

Referenced by decode_opcode_4bit().

commands_9bit

const char* commands_9bit[]

static

Initial value:

= {
    [H8300_BST] = "bst",
    [H8300_BIST] = "bist",
    [H8300_BOR] = "bor",
    [H8300_BIOR] = "bior",
    [H8300_BXOR] = "bxor",
    [H8300_BIXOR] = "bixor",
    [H8300_BAND] = "band",
    [H8300_BIAND] = "biand",
    [H8300_BLD] = "bld",
    [H8300_BILD] = "bild",
}

Definition at line 117 of file h8300_disas.c.

Referenced by decode_opcode().