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Rewrite of the Motorola DSP56k disassembler. (Andrew Gardner)

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(Same changelog as before - found another couple - not worth adding to whatsnew)
This commit is contained in:
Andrew Gardner 2008-09-19 02:49:18 +00:00
parent 66954044d1
commit 49c8293fd9
1 changed files with 9 additions and 9 deletions
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18
src/emu/cpu/dsp56k/dsp56dsm.c
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@ -74,14 +74,14 @@ static size_t dsp56k_dasm_asl4 (const UINT16 op, char* opcode_str, char* arg_st
static size_t dsp56k_dasm_asr4 (const UINT16 op, char* opcode_str, char* arg_str);
static size_t dsp56k_dasm_asr16 (const UINT16 op, char* opcode_str, char* arg_str);
static size_t dsp56k_dasm_bfop (const UINT16 op, const UINT16 op2, char* opcode_str, char* arg_str);
static size_t dsp56k_dasm_bcc (const UINT16 op, const UINT16 op2, char* opcode_str, char* arg_str);
static size_t dsp56k_dasm_bcc (const UINT16 op, const UINT16 op2, char* opcode_str, char* arg_str, const offs_t pc);
static size_t dsp56k_dasm_bcc_1 (const UINT16 op, char* opcode_str, char* arg_str, const offs_t pc);
static size_t dsp56k_dasm_bcc_2 (const UINT16 op, char* opcode_str, char* arg_str);
static size_t dsp56k_dasm_bra (const UINT16 op, const UINT16 op2, char* opcode_str, char* arg_str, const offs_t pc);
static size_t dsp56k_dasm_bra_1 (const UINT16 op, char* opcode_str, char* arg_str, const offs_t pc);
static size_t dsp56k_dasm_bra_2 (const UINT16 op, char* opcode_str, char* arg_str);
static size_t dsp56k_dasm_brkc (const UINT16 op, char* opcode_str, char* arg_str);
static size_t dsp56k_dasm_bscc (const UINT16 op, const UINT16 op2, char* opcode_str, char* arg_str);
static size_t dsp56k_dasm_bscc (const UINT16 op, const UINT16 op2, char* opcode_str, char* arg_str, const offs_t pc);
static size_t dsp56k_dasm_bscc_1 (const UINT16 op, char* opcode_str, char* arg_str);
static size_t dsp56k_dasm_bsr (const UINT16 op, const UINT16 op2, char* opcode_str, char* arg_str, const offs_t pc);
static size_t dsp56k_dasm_bsr_1 (const UINT16 op, char* opcode_str, char* arg_str);
@ -702,7 +702,7 @@ offs_t dsp56k_dasm(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opr
/* Bcc : 0000 0111 --11 cccc xxxx xxxx xxxx xxxx : A-48 */
else if (((op & 0xff30) == 0x0730) && ((op2 & 0x0000) == 0x0000))
{
size = dsp56k_dasm_bcc(op, op2, opcode_str, arg_str);
size = dsp56k_dasm_bcc(op, op2, opcode_str, arg_str, pc);
}
/* Bcc : 0010 11cc ccee eeee : A-48 */
else if ((op & 0xfc00) == 0x2c00)
@ -737,7 +737,7 @@ offs_t dsp56k_dasm(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opr
/* BScc : 0000 0111 --01 cccc xxxx xxxx xxxx xxxx : A-54 */
else if (((op & 0xff30) == 0x0710) && ((op2 & 0x0000) == 0x0000))
{
size = dsp56k_dasm_bscc(op, op2, opcode_str, arg_str);
size = dsp56k_dasm_bscc(op, op2, opcode_str, arg_str, pc);
}
/* BScc: 0000 0111 RR00 cccc : A-54 */
else if ((op & 0xff30) == 0x0700)
@ -1725,12 +1725,12 @@ static size_t dsp56k_dasm_bfop(const UINT16 op, const UINT16 op2, char* opcode_s
}
/* Bcc : 0000 0111 --11 cccc xxxx xxxx xxxx xxxx : A-48 */
static size_t dsp56k_dasm_bcc(const UINT16 op, const UINT16 op2, char* opcode_str, char* arg_str)
static size_t dsp56k_dasm_bcc(const UINT16 op, const UINT16 op2, char* opcode_str, char* arg_str, const offs_t pc)
{
char M[32];
decode_cccc_table(BITS(op,0x000f), M);
sprintf(opcode_str, "b.%s", M);
sprintf(arg_str, "%04x (%d)", op2, op2);
sprintf(arg_str, "%d (0x%04x)", (INT16)op2, pc + 2 + (INT16)op2);
return 2;
}
@ -1742,7 +1742,7 @@ static size_t dsp56k_dasm_bcc_1(const UINT16 op, char* opcode_str, char* arg_str
decode_cccc_table(BITS(op,0x3c0), M);
relativeInt = get_6_bit_signed_value(BITS(op,0x003f));
sprintf(opcode_str, "b.%s", M);
sprintf(arg_str, "%04x (%d)", pc + 1 + relativeInt, relativeInt);
sprintf(arg_str, "%d (0x%04x)", relativeInt, pc + 1 + relativeInt);
return 1;
}
@ -1795,12 +1795,12 @@ static size_t dsp56k_dasm_brkc(const UINT16 op, char* opcode_str, char* arg_str)
}
/* BScc : 0000 0111 --01 cccc xxxx xxxx xxxx xxxx : A-54 */
static size_t dsp56k_dasm_bscc(const UINT16 op, const UINT16 op2, char* opcode_str, char* arg_str)
static size_t dsp56k_dasm_bscc(const UINT16 op, const UINT16 op2, char* opcode_str, char* arg_str, const offs_t pc)
{
char M[32];
decode_cccc_table(BITS(op,0x000f), M);
sprintf(opcode_str, "bs.%s", M);
sprintf(arg_str, "%d (0x%04x)", (INT16)(op2), op2);
sprintf(arg_str, "%d (0x%04x)", (INT16)op2, pc + 2 + (INT16)op2);
return (2 | DASMFLAG_STEP_OVER); /* probably */
}