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Split the 286/386 interpreter away from the 486+ one (the 286/386 interpreter does not use the pccache's, readlookup's, and writelookup's as the emulated CPU's are too slow for them to be required, and also has more accurate FPU timings), also added a LPT status read function for future-proofing.

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This commit is contained in:
OBattler
2023-08-08 19:39:52 +02:00
parent 5f72dc7d56
commit b1c5cbaf47
23 changed files with 3759 additions and 144 deletions
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65
src/cpu/386_ops.h
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@@ -179,7 +179,9 @@ extern void x386_dynarec_log(const char *fmt, ...);
#include "x86_ops_bcd.h"
#include "x86_ops_bit.h"
#include "x86_ops_bitscan.h"
#ifndef OPS_286_386
#include "x86_ops_cyrix.h"
#endif
#include "x86_ops_flag.h"
#include "x86_ops_fpu.h"
#include "x86_ops_inc_dec.h"
@@ -188,6 +190,7 @@ extern void x386_dynarec_log(const char *fmt, ...);
#include "x86_ops_jump.h"
#include "x86_ops_misc.h"
#include "x87_ops.h"
#ifndef OPS_286_386
#include "x86_ops_i686.h"
#include "x86_ops_mmx.h"
#include "x86_ops_mmx_arith.h"
@@ -196,30 +199,44 @@ extern void x386_dynarec_log(const char *fmt, ...);
#include "x86_ops_mmx_mov.h"
#include "x86_ops_mmx_pack.h"
#include "x86_ops_mmx_shift.h"
#endif
#include "x86_ops_mov.h"
#include "x86_ops_mov_ctrl.h"
#include "x86_ops_mov_seg.h"
#include "x86_ops_movx.h"
#ifndef OPS_286_386
#include "x86_ops_msr.h"
#endif
#include "x86_ops_mul.h"
#include "x86_ops_pmode.h"
#include "x86_ops_prefix.h"
#ifdef IS_DYNAREC
# include "x86_ops_rep_dyn.h"
#else
#ifdef OPS_286_386
# include "x86_ops_rep_2386.h"
#else
# include "x86_ops_rep.h"
#endif
#endif
#include "x86_ops_ret.h"
#include "x86_ops_set.h"
#include "x86_ops_stack.h"
#ifdef OPS_286_386
#include "x86_ops_string_2386.h"
#else
#include "x86_ops_string.h"
#endif
#include "x86_ops_xchg.h"
#include "x86_ops_call.h"
#include "x86_ops_shift.h"
#ifndef OPS_286_386
#include "x86_ops_amd.h"
#include "x86_ops_3dnow.h"
#endif
#include <time.h>
#ifndef OPS_286_386
static int
opVPCEXT(uint32_t fetchdat)
{
@@ -331,7 +348,50 @@ opVPCEXT(uint32_t fetchdat)
return 1;
}
#endif
#ifdef OPS_286_386
static int op0F_w_a16(uint32_t fetchdat)
{
int opcode = fetchdat & 0xff;
fopcode = opcode;
cpu_state.pc++;
PREFETCH_PREFIX();
return x86_2386_opcodes_0f[opcode](fetchdat >> 8);
}
static int op0F_l_a16(uint32_t fetchdat)
{
int opcode = fetchdat & 0xff;
fopcode = opcode;
cpu_state.pc++;
PREFETCH_PREFIX();
return x86_2386_opcodes_0f[opcode | 0x100](fetchdat >> 8);
}
static int op0F_w_a32(uint32_t fetchdat)
{
int opcode = fetchdat & 0xff;
fopcode = opcode;
cpu_state.pc++;
PREFETCH_PREFIX();
return x86_2386_opcodes_0f[opcode | 0x200](fetchdat >> 8);
}
static int op0F_l_a32(uint32_t fetchdat)
{
int opcode = fetchdat & 0xff;
fopcode = opcode;
cpu_state.pc++;
PREFETCH_PREFIX();
return x86_2386_opcodes_0f[opcode | 0x300](fetchdat >> 8);
}
#else
static int
op0F_w_a16(uint32_t fetchdat)
{
@@ -376,6 +436,7 @@ op0F_l_a32(uint32_t fetchdat)
return x86_opcodes_0f[opcode | 0x300](fetchdat >> 8);
}
#endif
const OpFn OP_TABLE(186_0f)[1024] = {
// clang-format off
@@ -745,6 +806,7 @@ const OpFn OP_TABLE(486_0f)[1024] = {
// clang-format on
};
#ifndef OPS_286_386
const OpFn OP_TABLE(c486_0f)[1024] = {
// clang-format off
/*16-bit data, 16-bit addr*/
@@ -928,6 +990,7 @@ const OpFn OP_TABLE(stpc_0f)[1024] = {
/*f0*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
// clang-format on
};
#endif
const OpFn OP_TABLE(ibm486_0f)[1024] = {
// clang-format off
@@ -1021,6 +1084,7 @@ const OpFn OP_TABLE(ibm486_0f)[1024] = {
// clang-format on
};
#ifndef OPS_286_386
const OpFn OP_TABLE(winchip_0f)[1024] = {
// clang-format off
/*16-bit data, 16-bit addr*/
@@ -2128,6 +2192,7 @@ const OpFn OP_TABLE(186)[1024] = {
/*f0*/ opLOCK, opLOCK, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_w_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_w_a16,
// clang-format on
};
#endif
const OpFn OP_TABLE(286)[1024] = {
// clang-format off