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i386: add disassembly of opcodes MOVHLPS and movLHPS (nw)

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They differentiate from movlps and movhps by bits 7-6 of the modrm byte
This commit is contained in:
yz70s 2015-01-24 18:53:01 +01:00
parent 10b3dce34d
commit 56b43d370e
1 changed files with 52 additions and 11 deletions
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63
src/emu/cpu/i386/i386dasm.c
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@ -98,6 +98,7 @@ enum
#define ALWAYS64 0x400 #define ALWAYS64 0x400
#define SPECIAL64 0x800 #define SPECIAL64 0x800
#define SPECIAL64_ENT(x) (SPECIAL64 | ((x) << 24)) #define SPECIAL64_ENT(x) (SPECIAL64 | ((x) << 24))
#define GROUP_MOD 0x1000
struct I386_OPCODE { struct I386_OPCODE {
const char *mnemonic; const char *mnemonic;
@ -425,10 +426,7 @@ static const I386_OPCODE i386_opcode_table2[256] =
"movupd\0" "movupd\0"
"movsd\0" "movsd\0"
"movss", MODRM|VAR_NAME4,PARAM_XMMM, PARAM_XMM, 0 }, "movss", MODRM|VAR_NAME4,PARAM_XMMM, PARAM_XMM, 0 },
{"movlps\0" {"group0F12", GROUP|GROUP_MOD, 0, 0, 0 },
"movlpd\0"
"movddup\0"
"movsldup", MODRM|VAR_NAME4,PARAM_XMM, PARAM_XMMM, 0 },
{"movlps\0" {"movlps\0"
"movlpd\0" "movlpd\0"
"???\0" "???\0"
@ -441,14 +439,11 @@ static const I386_OPCODE i386_opcode_table2[256] =
"unpckhpd\0" "unpckhpd\0"
"???\0" "???\0"
"???", MODRM|VAR_NAME4,PARAM_XMM, PARAM_XMMM, 0 }, "???", MODRM|VAR_NAME4,PARAM_XMM, PARAM_XMMM, 0 },
{ "group0F16", GROUP|GROUP_MOD, 0, 0, 0 },
{"movhps\0" {"movhps\0"
"movhpd\0" "movhpd\0"
"???\0" "???\0"
"movshdup", MODRM|VAR_NAME4,PARAM_XMMM, PARAM_XMM, 0 }, "???", MODRM|VAR_NAME4,PARAM_XMMM, PARAM_XMM, 0 },
{"movhps\0"
"movhpd\0"
"???\0"
"???", MODRM|VAR_NAME4,PARAM_XMM, PARAM_XMMM, 0 },
{"group0F18", GROUP, 0, 0, 0 }, {"group0F18", GROUP, 0, 0, 0 },
{"nop_hint", 0, PARAM_RMPTR8, 0, 0 }, {"nop_hint", 0, PARAM_RMPTR8, 0, 0 },
{"nop_hint", 0, PARAM_RMPTR8, 0, 0 }, {"nop_hint", 0, PARAM_RMPTR8, 0, 0 },
@ -1810,6 +1805,46 @@ static const I386_OPCODE group0F0D_table[8] =
{"???", 0, 0, 0, 0 } {"???", 0, 0, 0, 0 }
}; };
static const I386_OPCODE group0F12_table[4] =
{
{ "movlps\0"
"movlpd\0"
"movddup\0"
"movsldup", VAR_NAME4,PARAM_XMM, PARAM_XMMM, 0 },
{ "movlps\0"
"movlpd\0"
"movddup\0"
"movsldup", VAR_NAME4,PARAM_XMM, PARAM_XMMM, 0 },
{ "movlps\0"
"movlpd\0"
"movddup\0"
"movsldup", VAR_NAME4,PARAM_XMM, PARAM_XMMM, 0 },
{ "movhlps\0"
"???\0"
"movddup\0"
"movsldup", VAR_NAME4,PARAM_XMM, PARAM_XMMM, 0 }
};
static const I386_OPCODE group0F16_table[4] =
{
{ "movhps\0"
"movhpd\0"
"???\0"
"movshdup", VAR_NAME4,PARAM_XMM, PARAM_XMMM, 0 },
{ "movhps\0"
"movhpd\0"
"???\0"
"movshdup", VAR_NAME4,PARAM_XMM, PARAM_XMMM, 0 },
{ "movhps\0"
"movhpd\0"
"???\0"
"movshdup", VAR_NAME4,PARAM_XMM, PARAM_XMMM, 0 },
{ "movlhps\0"
"movhpd\0"
"???\0"
"movshdup", VAR_NAME4,PARAM_XMM, PARAM_XMMM, 0 }
};
static const I386_OPCODE group0F18_table[8] = static const I386_OPCODE group0F18_table[8] =
{ {
{"prefetchnta", 0, PARAM_RM8, 0, 0 }, {"prefetchnta", 0, PARAM_RM8, 0, 0 },
@ -1916,7 +1951,9 @@ static const GROUP_OP group_op_table[] =
{ "group0F00", group0F00_table }, { "group0F00", group0F00_table },
{ "group0F01", group0F01_table }, { "group0F01", group0F01_table },
{ "group0F0D", group0F0D_table }, { "group0F0D", group0F0D_table },
{ "group0F18", group0F18_table }, { "group0F12", group0F12_table },
{ "group0F16", group0F16_table },
{ "group0F18", group0F18_table },
{ "group0F71", group0F71_table }, { "group0F71", group0F71_table },
{ "group0F72", group0F72_table }, { "group0F72", group0F72_table },
{ "group0F73", group0F73_table }, { "group0F73", group0F73_table },
@ -1954,6 +1991,7 @@ static UINT8 curmode;
#define MODRM_REG1 ((modrm >> 3) & 0x7) #define MODRM_REG1 ((modrm >> 3) & 0x7)
#define MODRM_REG2 (modrm & 0x7) #define MODRM_REG2 (modrm & 0x7)
#define MODRM_MOD ((modrm >> 6) & 0x3)
INLINE UINT8 FETCH(void) INLINE UINT8 FETCH(void)
{ {
@ -2959,7 +2997,10 @@ static void decode_opcode(char *s, const I386_OPCODE *op, UINT8 op1)
handle_modrm( modrm_string ); handle_modrm( modrm_string );
for( i=0; i < ARRAY_LENGTH(group_op_table); i++ ) { for( i=0; i < ARRAY_LENGTH(group_op_table); i++ ) {
if( strcmp(op->mnemonic, group_op_table[i].mnemonic) == 0 ) { if( strcmp(op->mnemonic, group_op_table[i].mnemonic) == 0 ) {
decode_opcode( s, &group_op_table[i].opcode[MODRM_REG1], op1 ); if (op->flags & GROUP_MOD)
decode_opcode( s, &group_op_table[i].opcode[MODRM_MOD], op1 );
else
decode_opcode( s, &group_op_table[i].opcode[MODRM_REG1], op1 );
return; return;
} }
} }