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i286c /
i286c_ea.c
Revision
1.8:
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Fri Jan 9 01:29:56 2004 JST (21 years, 9 months ago) by
yui
Branches:
MAIN
CVS tags:
VER_0_82_x64,
VER_0_82,
VER_0_81A,
VER_0_81,
VER_0_80,
VER_0_79,
VER_0_78,
VER_0_77,
VER_0_76,
VER_0_75,
VER_0_74,
VER_0_73,
HEAD
add wavemixer (T.Yui)
#include "compiler.h"
#include "cpucore.h"
#include "i286c.h"
#include "i286c.mcr"
enum {
EA_BX_SI = 0,
EA_BX_DI,
EA_BP_SI,
EA_BP_DI,
EA_SI,
EA_DI,
EA_DISP16,
EA_BX,
EA_BX_SI_DISP8,
EA_BX_DI_DISP8,
EA_BP_SI_DISP8,
EA_BP_DI_DISP8,
EA_SI_DISP8,
EA_DI_DISP8,
EA_BP_DISP8,
EA_BX_DISP8,
EA_BX_SI_DISP16,
EA_BX_DI_DISP16,
EA_BP_SI_DISP16,
EA_BP_DI_DISP16,
EA_SI_DISP16,
EA_DI_DISP16,
EA_BP_DISP16,
EA_BX_DISP16
};
#if !defined(MEMOPTIMIZE) || (MEMOPTIMIZE < 2)
static UINT32 ea_bx_si(void) {
return(LOW16(I286_BX + I286_SI) + DS_FIX);
}
static UINT32 ea_bx_si_disp8(void) {
SINT32 adrs;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BX + I286_SI) + DS_FIX);
}
static UINT32 ea_bx_si_disp16(void) {
UINT32 adrs;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BX + I286_SI) + DS_FIX);
}
static UINT32 ea_bx_di(void) {
return(LOW16(I286_BX + I286_DI) + DS_FIX);
}
static UINT32 ea_bx_di_disp8(void) {
SINT32 adrs;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BX + I286_DI) + DS_FIX);
}
static UINT32 ea_bx_di_disp16(void) {
UINT32 adrs;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BX + I286_DI) + DS_FIX);
}
static UINT32 ea_bp_si(void) {
return(LOW16(I286_BP + I286_SI) + SS_FIX);
}
static UINT32 ea_bp_si_disp8(void) {
SINT32 adrs;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BP + I286_SI) + SS_FIX);
}
static UINT32 ea_bp_si_disp16(void) {
UINT32 adrs;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BP + I286_SI) + SS_FIX);
}
static UINT32 ea_bp_di(void) {
return(LOW16(I286_BP + I286_DI) + SS_FIX);
}
static UINT32 ea_bp_di_disp8(void) {
SINT32 adrs;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BP + I286_DI) + SS_FIX);
}
static UINT32 ea_bp_di_disp16(void) {
UINT32 adrs;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BP + I286_DI) + SS_FIX);
}
static UINT32 ea_si(void) {
return(I286_SI + DS_FIX);
}
static UINT32 ea_si_disp8(void) {
SINT32 adrs;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_SI) + DS_FIX);
}
static UINT32 ea_si_disp16(void) {
UINT32 adrs;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_SI) + DS_FIX);
}
static UINT32 ea_di(void) {
return(I286_DI + DS_FIX);
}
static UINT32 ea_di_disp8(void) {
SINT32 adrs;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_DI) + DS_FIX);
}
static UINT32 ea_di_disp16(void) {
UINT32 adrs;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_DI) + DS_FIX);
}
static UINT32 ea_disp16(void) {
UINT32 adrs;
GET_PCWORD(adrs);
return(adrs + DS_FIX);
}
static UINT32 ea_bp_disp8(void) {
SINT32 adrs;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BP) + SS_FIX);
}
static UINT32 ea_bp_disp16(void) {
UINT32 adrs;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BP) + SS_FIX);
}
static UINT32 ea_bx(void) {
return(I286_BX + DS_FIX);
}
static UINT32 ea_bx_disp8(void) {
SINT32 adrs;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BX) + DS_FIX);
}
static UINT32 ea_bx_disp16(void) {
UINT32 adrs;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BX) + DS_FIX);
}
static const CALCEA i286c_ea_dst_tbl[] = {
ea_bx_si, ea_bx_di,
ea_bp_si, ea_bp_di,
ea_si, ea_di,
ea_disp16, ea_bx,
ea_bx_si_disp8, ea_bx_di_disp8,
ea_bp_si_disp8, ea_bp_di_disp8,
ea_si_disp8, ea_di_disp8,
ea_bp_disp8, ea_bx_disp8,
ea_bx_si_disp16, ea_bx_di_disp16,
ea_bp_si_disp16, ea_bp_di_disp16,
ea_si_disp16, ea_di_disp16,
ea_bp_disp16, ea_bx_disp16};
// ----
static UINT16 lea_bx_si(void) {
return(I286_BX + I286_SI);
}
static UINT16 lea_bx_si_disp8(void) {
UINT16 adrs;
GET_PCBYTES(adrs);
return(adrs + I286_BX + I286_SI);
}
static UINT16 lea_bx_si_disp16(void) {
UINT16 adrs;
GET_PCWORD(adrs);
return(adrs + I286_BX + I286_SI);
}
static UINT16 lea_bx_di(void) {
return(I286_BX + I286_DI);
}
static UINT16 lea_bx_di_disp8(void) {
UINT16 adrs;
GET_PCBYTES(adrs);
return(adrs + I286_BX + I286_DI);
}
static UINT16 lea_bx_di_disp16(void) {
UINT16 adrs;
GET_PCWORD(adrs);
return(adrs + I286_BX + I286_DI);
}
static UINT16 lea_bp_si(void) {
return(I286_BP + I286_SI);
}
static UINT16 lea_bp_si_disp8(void) {
UINT16 adrs;
GET_PCBYTES(adrs);
return(adrs + I286_BP + I286_SI);
}
static UINT16 lea_bp_si_disp16(void) {
UINT16 adrs;
GET_PCWORD(adrs);
return(adrs + I286_BP + I286_SI);
}
static UINT16 lea_bp_di(void) {
return(I286_BP + I286_DI);
}
static UINT16 lea_bp_di_disp8(void) {
UINT16 adrs;
GET_PCBYTES(adrs);
return(adrs + I286_BP + I286_DI);
}
static UINT16 lea_bp_di_disp16(void) {
UINT16 adrs;
GET_PCWORD(adrs);
return(adrs + I286_BP + I286_DI);
}
static UINT16 lea_si(void) {
return(I286_SI);
}
static UINT16 lea_si_disp8(void) {
UINT16 adrs;
GET_PCBYTES(adrs);
return(adrs + I286_SI);
}
static UINT16 lea_si_disp16(void) {
UINT16 adrs;
GET_PCWORD(adrs);
return(adrs + I286_SI);
}
static UINT16 lea_di(void) {
return(I286_DI);
}
static UINT16 lea_di_disp8(void) {
UINT16 adrs;
GET_PCBYTES(adrs);
return(adrs + I286_DI);
}
static UINT16 lea_di_disp16(void) {
UINT16 adrs;
GET_PCWORD(adrs);
return(adrs + I286_DI);
}
static UINT16 lea_disp16(void) {
UINT16 adrs;
GET_PCWORD(adrs);
return(adrs);
}
static UINT16 lea_bp_disp8(void) {
UINT16 adrs;
GET_PCBYTES(adrs);
return(adrs + I286_BP);
}
static UINT16 lea_bp_disp16(void) {
UINT16 adrs;
GET_PCWORD(adrs);
return(adrs + I286_BP);
}
static UINT16 lea_bx(void) {
return(I286_BX);
}
static UINT16 lea_bx_disp8(void) {
UINT16 adrs;
GET_PCBYTES(adrs);
return(adrs + I286_BX);
}
static UINT16 lea_bx_disp16(void) {
UINT16 adrs;
GET_PCWORD(adrs);
return(adrs + I286_BX);
}
static const CALCLEA i286c_lea_tbl[] = {
lea_bx_si, lea_bx_di,
lea_bp_si, lea_bp_di,
lea_si, lea_di,
lea_disp16, lea_bx,
lea_bx_si_disp8, lea_bx_di_disp8,
lea_bp_si_disp8, lea_bp_di_disp8,
lea_si_disp8, lea_di_disp8,
lea_bp_disp8, lea_bx_disp8,
lea_bx_si_disp16, lea_bx_di_disp16,
lea_bp_si_disp16, lea_bp_di_disp16,
lea_si_disp16, lea_di_disp16,
lea_bp_disp16, lea_bx_disp16};
// ----
static UINT a_bx_si(UINT32 *seg) {
*seg = DS_FIX;
return(LOW16(I286_BX + I286_SI));
}
static UINT a_bx_si_disp8(UINT32 *seg) {
UINT adrs;
*seg = DS_FIX;
GET_PCBYTES(adrs);
return(LOW16(adrs + I286_BX + I286_SI));
}
static UINT a_bx_si_disp16(UINT32 *seg) {
UINT adrs;
*seg = DS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BX + I286_SI));
}
static UINT a_bx_di(UINT32 *seg) {
*seg = DS_FIX;
return(LOW16(I286_BX + I286_DI));
}
static UINT a_bx_di_disp8(UINT32 *seg) {
UINT adrs;
*seg = DS_FIX;
GET_PCBYTES(adrs);
return(LOW16(adrs + I286_BX + I286_DI));
}
static UINT a_bx_di_disp16(UINT32 *seg) {
UINT adrs;
*seg = DS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BX + I286_DI));
}
static UINT a_bp_si(UINT32 *seg) {
*seg = SS_FIX;
return(LOW16(I286_BP + I286_SI));
}
static UINT a_bp_si_disp8(UINT32 *seg) {
UINT adrs;
*seg = SS_FIX;
GET_PCBYTES(adrs);
return(LOW16(adrs + I286_BP + I286_SI));
}
static UINT a_bp_si_disp16(UINT32 *seg) {
UINT adrs;
*seg = SS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BP + I286_SI));
}
static UINT a_bp_di(UINT32 *seg) {
*seg = SS_FIX;
return(LOW16(I286_BP + I286_DI));
}
static UINT a_bp_di_disp8(UINT32 *seg) {
UINT adrs;
*seg = SS_FIX;
GET_PCBYTES(adrs);
return(LOW16(adrs + I286_BP + I286_DI));
}
static UINT a_bp_di_disp16(UINT32 *seg) {
UINT adrs;
*seg = SS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BP + I286_DI));
}
static UINT a_si(UINT32 *seg) {
*seg = DS_FIX;
return(I286_SI);
}
static UINT a_si_disp8(UINT32 *seg) {
UINT adrs;
*seg = DS_FIX;
GET_PCBYTES(adrs);
return(LOW16(adrs + I286_SI));
}
static UINT a_si_disp16(UINT32 *seg) {
UINT adrs;
*seg = DS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_SI));
}
static UINT a_di(UINT32 *seg) {
*seg = DS_FIX;
return(I286_DI);
}
static UINT a_di_disp8(UINT32 *seg) {
UINT adrs;
*seg = DS_FIX;
GET_PCBYTES(adrs);
return(LOW16(adrs + I286_DI));
}
static UINT a_di_disp16(UINT32 *seg) {
UINT adrs;
*seg = DS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_DI));
}
static UINT a_disp16(UINT32 *seg) {
UINT adrs;
*seg = DS_FIX;
GET_PCWORD(adrs);
return(adrs);
}
static UINT a_bp_disp8(UINT32 *seg) {
UINT adrs;
*seg = SS_FIX;
GET_PCBYTES(adrs);
return(LOW16(adrs + I286_BP));
}
static UINT a_bp_disp16(UINT32 *seg) {
UINT adrs;
*seg = SS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BP));
}
static UINT a_bx(UINT32 *seg) {
*seg = DS_FIX;
return(I286_BX);
}
static UINT a_bx_disp8(UINT32 *seg) {
UINT adrs;
*seg = DS_FIX;
GET_PCBYTES(adrs);
return(LOW16(adrs + I286_BX));
}
static UINT a_bx_disp16(UINT32 *seg) {
UINT adrs;
*seg = DS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BX));
}
static const GETLEA i286c_ea_tbl[] = {
a_bx_si, a_bx_di,
a_bp_si, a_bp_di,
a_si, a_di,
a_disp16, a_bx,
a_bx_si_disp8, a_bx_di_disp8,
a_bp_si_disp8, a_bp_di_disp8,
a_si_disp8, a_di_disp8,
a_bp_disp8, a_bx_disp8,
a_bx_si_disp16, a_bx_di_disp16,
a_bp_si_disp16, a_bp_di_disp16,
a_si_disp16, a_di_disp16,
a_bp_disp16, a_bx_disp16};
// ----
CALCEA _calc_ea_dst[256];
CALCLEA _calc_lea[192];
GETLEA _get_ea[192];
static UINT32 ea_nop(void) {
return(0);
}
void i286cea_initialize(void) {
UINT i;
UINT pos;
for (i=0; i<0xc0; i++) {
pos = ((i >> 3) & 0x18) + (i & 0x07);
_calc_ea_dst[i] = i286c_ea_dst_tbl[pos];
_calc_lea[i] = i286c_lea_tbl[pos];
_get_ea[i] = i286c_ea_tbl[pos];
}
for (; i<0x100; i++) {
_calc_ea_dst[i] = ea_nop;
}
}
#else // ARMだとswitchにしたほーが早いはず…
UINT32 calc_ea_dst(UINT op) {
UINT32 adrs;
switch(((op >> 3) & 0x18) + (op & 0x07)) {
case EA_BX_SI:
return(LOW16(I286_BX + I286_SI) + DS_FIX);
case EA_BX_SI_DISP8:
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BX + I286_SI) + DS_FIX);
case EA_BX_SI_DISP16:
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BX + I286_SI) + DS_FIX);
case EA_BX_DI:
return(LOW16(I286_BX + I286_DI) + DS_FIX);
case EA_BX_DI_DISP8:
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BX + I286_DI) + DS_FIX);
case EA_BX_DI_DISP16:
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BX + I286_DI) + DS_FIX);
case EA_BP_SI:
return(LOW16(I286_BP + I286_SI) + SS_FIX);
case EA_BP_SI_DISP8:
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BP + I286_SI) + SS_FIX);
case EA_BP_SI_DISP16:
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BP + I286_SI) + SS_FIX);
case EA_BP_DI:
return(LOW16(I286_BP + I286_DI) + SS_FIX);
case EA_BP_DI_DISP8:
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BP + I286_DI) + SS_FIX);
case EA_BP_DI_DISP16:
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BP + I286_DI) + SS_FIX);
case EA_SI:
return(I286_SI + DS_FIX);
case EA_SI_DISP8:
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_SI) + DS_FIX);
case EA_SI_DISP16:
GET_PCWORD(adrs);
return(LOW16(adrs + I286_SI) + DS_FIX);
case EA_DI:
return(I286_DI + DS_FIX);
case EA_DI_DISP8:
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_DI) + DS_FIX);
case EA_DI_DISP16:
GET_PCWORD(adrs);
return(LOW16(adrs + I286_DI) + DS_FIX);
case EA_BX:
return(I286_BX + DS_FIX);
case EA_BX_DISP8:
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BX) + DS_FIX);
case EA_BX_DISP16:
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BX) + DS_FIX);
case EA_BP_DISP8:
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BP) + SS_FIX);
case EA_BP_DISP16:
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BP) + SS_FIX);
case EA_DISP16:
GET_PCWORD(adrs);
return(adrs + DS_FIX);
default:
return(0);
}
}
UINT16 calc_lea(UINT op) {
UINT16 adrs;
switch(((op >> 3) & 0x18) + (op & 0x07)) {
case EA_BX_SI:
return(I286_BX + I286_SI);
case EA_BX_SI_DISP8:
GET_PCBYTESD(adrs);
return(adrs + I286_BX + I286_SI);
case EA_BX_SI_DISP16:
GET_PCWORD(adrs);
return(adrs + I286_BX + I286_SI);
case EA_BX_DI:
return(I286_BX + I286_DI);
case EA_BX_DI_DISP8:
GET_PCBYTESD(adrs);
return(adrs + I286_BX + I286_DI);
case EA_BX_DI_DISP16:
GET_PCWORD(adrs);
return(adrs + I286_BX + I286_DI);
case EA_BP_SI:
return(I286_BP + I286_SI);
case EA_BP_SI_DISP8:
GET_PCBYTESD(adrs);
return(adrs + I286_BP + I286_SI);
case EA_BP_SI_DISP16:
GET_PCWORD(adrs);
return(adrs + I286_BP + I286_SI);
case EA_BP_DI:
return(I286_BP + I286_DI);
case EA_BP_DI_DISP8:
GET_PCBYTESD(adrs);
return(adrs + I286_BP + I286_DI);
case EA_BP_DI_DISP16:
GET_PCWORD(adrs);
return(adrs + I286_BP + I286_DI);
case EA_SI:
return(I286_SI);
case EA_SI_DISP8:
GET_PCBYTESD(adrs);
return(adrs + I286_SI);
case EA_SI_DISP16:
GET_PCWORD(adrs);
return(adrs + I286_SI);
case EA_DI:
return(I286_DI);
case EA_DI_DISP8:
GET_PCBYTESD(adrs);
return(adrs + I286_DI);
case EA_DI_DISP16:
GET_PCWORD(adrs);
return(adrs + I286_DI);
case EA_BX:
return(I286_BX);
case EA_BX_DISP8:
GET_PCBYTESD(adrs);
return(adrs + I286_BX);
case EA_BX_DISP16:
GET_PCWORD(adrs);
return(adrs + I286_BX);
case EA_BP_DISP8:
GET_PCBYTESD(adrs);
return(adrs + I286_BP);
case EA_BP_DISP16:
GET_PCWORD(adrs);
return(adrs + I286_BP);
case EA_DISP16:
GET_PCWORD(adrs);
return(adrs);
default:
return(0);
}
}
UINT calc_a(UINT op, UINT32 *seg) {
UINT adrs;
switch(((op >> 3) & 0x18) + (op & 0x07)) {
case EA_BX_SI:
*seg = DS_FIX;
return(LOW16(I286_BX + I286_SI));
case EA_BX_SI_DISP8:
*seg = DS_FIX;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BX + I286_SI));
case EA_BX_SI_DISP16:
*seg = DS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BX + I286_SI));
case EA_BX_DI:
*seg = DS_FIX;
return(LOW16(I286_BX + I286_DI));
case EA_BX_DI_DISP8:
*seg = DS_FIX;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BX + I286_DI));
case EA_BX_DI_DISP16:
*seg = DS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BX + I286_DI));
case EA_BP_SI:
*seg = SS_FIX;
return(LOW16(I286_BP + I286_SI));
case EA_BP_SI_DISP8:
*seg = SS_FIX;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BP + I286_SI));
case EA_BP_SI_DISP16:
*seg = SS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BP + I286_SI));
case EA_BP_DI:
*seg = SS_FIX;
return(LOW16(I286_BP + I286_DI));
case EA_BP_DI_DISP8:
*seg = SS_FIX;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BP + I286_DI));
case EA_BP_DI_DISP16:
*seg = SS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BP + I286_DI));
case EA_SI:
*seg = DS_FIX;
return(I286_SI);
case EA_SI_DISP8:
*seg = DS_FIX;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_SI));
case EA_SI_DISP16:
*seg = DS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_SI));
case EA_DI:
*seg = DS_FIX;
return(I286_DI);
case EA_DI_DISP8:
*seg = DS_FIX;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_DI));
case EA_DI_DISP16:
*seg = DS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_DI));
case EA_BX:
*seg = DS_FIX;
return(I286_BX);
case EA_BX_DISP8:
*seg = DS_FIX;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BX));
case EA_BX_DISP16:
*seg = DS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BX));
case EA_BP_DISP8:
*seg = SS_FIX;
GET_PCBYTESD(adrs);
return(LOW16(adrs + I286_BP));
case EA_BP_DISP16:
*seg = SS_FIX;
GET_PCWORD(adrs);
return(LOW16(adrs + I286_BP));
case EA_DISP16:
*seg = DS_FIX;
GET_PCWORD(adrs);
return(adrs);
default:
*seg = 0;
return(0);
}
}
#endif
UINT32 i286c_selector(UINT sel) {
I286DTR *dtr;
UINT32 addr;
UINT32 ret;
dtr = (sel & 4)?&I286_LDTRC:&I286_GDTR;
addr = (dtr->base24 << 16) + dtr->base + (sel & (~7));
ret = i286_memoryread_w(addr+2);
ret += i286_memoryread(addr+4) << 16;
TRACEOUT(("ProtectMode: selector idx=%x %s rpl=%d - real addr = %.6x",
(sel >> 3), (sel & 4)?"LDT":"GDT", sel & 3, ret));
return(ret);
}
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