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Second CPU sanitising pass.

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This commit is contained in:
SarahW 2019-02-07 21:53:44 +00:00
commit dd68b19f0a
10 changed files with 13 additions and 131 deletions
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71
src/386.c
View file

@ -12,53 +12,25 @@
#include "nmi.h"
#include "386_common.h"
#include "codegen.h"
#undef CPU_BLOCK_END
#define CPU_BLOCK_END()
extern int codegen_flags_changed;
extern int nmi_enable;
uint32_t use32;
int stack32;
int optype;
uint32_t oldpc2;
int trap;
extern int cpl_override;
int has_fpu;
extern int fpucount;
uint16_t ea_rseg;
int is486;
int cgate32;
uint8_t romext[32768];
uint8_t *ram,*rom;
uint32_t rmdat;
uint32_t backupregs[16];
extern int oddeven;
int inttype;
uint32_t oldecx;
uint32_t *eal_r, *eal_w;
static inline void fetch_ea_32_long(uint32_t rmdat)
{
eal_r = eal_w = NULL;
easeg = cpu_state.ea_seg->base;
ea_rseg = cpu_state.ea_seg->seg;
if (cpu_rm == 4)
{
uint8_t sib = rmdat >> 8;
@ -85,7 +57,6 @@ static inline void fetch_ea_32_long(uint32_t rmdat)
else if ((sib & 6) == 4 && !cpu_state.ssegs)
{
easeg = ss;
ea_rseg = SS;
cpu_state.ea_seg = &cpu_state.seg_ss;
}
if (((sib >> 3) & 7) != 4)
@ -99,7 +70,6 @@ static inline void fetch_ea_32_long(uint32_t rmdat)
if (cpu_rm == 5 && !cpu_state.ssegs)
{
easeg = ss;
ea_rseg = SS;
cpu_state.ea_seg = &cpu_state.seg_ss;
}
if (cpu_mod == 1)
@ -131,7 +101,6 @@ static inline void fetch_ea_16_long(uint32_t rmdat)
{
eal_r = eal_w = NULL;
easeg = cpu_state.ea_seg->base;
ea_rseg = cpu_state.ea_seg->seg;
if (!cpu_mod && cpu_rm == 6)
{
cpu_state.eaaddr = getword();
@ -154,7 +123,6 @@ static inline void fetch_ea_16_long(uint32_t rmdat)
if (mod1seg[cpu_rm] == &ss && !cpu_state.ssegs)
{
easeg = ss;
ea_rseg = SS;
cpu_state.ea_seg = &cpu_state.seg_ss;
}
cpu_state.eaaddr &= 0xFFFF;
@ -178,19 +146,7 @@ static inline void fetch_ea_16_long(uint32_t rmdat)
#define getwordf() ((uint16_t)(fetchdat)); cpu_state.pc+=2
#define getbyte2f() ((uint8_t)(fetchdat>>8)); cpu_state.pc++
#define getword2f() ((uint16_t)(fetchdat>>8)); cpu_state.pc+=2
extern int xout;
int oldi;
uint32_t testr[9];
extern int dontprint;
#undef NOTRM
#define NOTRM if (!(msw & 1) || (eflags & VM_FLAG))\
{ \
x86_int(6); \
return 0; \
}
#define OP_TABLE(name) ops_ ## name
@ -199,13 +155,6 @@ extern int dontprint;
#include "x86_ops.h"
#undef NOTRM
#define NOTRM if (!(msw & 1) || (eflags & VM_FLAG))\
{ \
x86_int(6); \
break; \
}
void exec386(int cycs)
{
uint8_t temp;
@ -226,16 +175,9 @@ void exec386(int cycs)
// pclog("%i %02X\n", ins, ram[8]);
while (cycdiff < cycle_period)
{
/* testr[0]=EAX; testr[1]=EBX; testr[2]=ECX; testr[3]=EDX;
testr[4]=ESI; testr[5]=EDI; testr[6]=EBP; testr[7]=ESP;*/
/* testr[8]=flags;*/
// oldpc2=oldpc;
cpu_state.oldpc = cpu_state.pc;
cpu_state.op32 = use32;
dontprint=0;
cpu_state.ea_seg = &cpu_state.seg_ds;
cpu_state.ssegs = 0;
@ -262,15 +204,6 @@ dontprint=0;
flags_rebuild();
// pclog("Abort\n");
// if (CS == 0x228) pclog("Abort at %04X:%04X - %i %i %i\n",CS,pc,notpresent,nullseg,abrt);
/* if (testr[0]!=EAX) pclog("EAX corrupted %08X\n",pc);
if (testr[1]!=EBX) pclog("EBX corrupted %08X\n",pc);
if (testr[2]!=ECX) pclog("ECX corrupted %08X\n",pc);
if (testr[3]!=EDX) pclog("EDX corrupted %08X\n",pc);
if (testr[4]!=ESI) pclog("ESI corrupted %08X\n",pc);
if (testr[5]!=EDI) pclog("EDI corrupted %08X\n",pc);
if (testr[6]!=EBP) pclog("EBP corrupted %08X\n",pc);
if (testr[7]!=ESP) pclog("ESP corrupted %08X\n",pc);*/
/* if (testr[8]!=flags) pclog("FLAGS corrupted %08X\n",pc);*/
tempi = cpu_state.abrt;
cpu_state.abrt = 0;
x86_doabrt(tempi);

14
src/386_common.h
View file

@ -1,14 +1,9 @@
extern uint16_t ea_rseg;
#undef readmemb
#undef writememb
#define readmemb(s,a) ((readlookup2[(uint32_t)((s)+(a))>>12]==-1)?readmembl((s)+(a)): *(uint8_t *)(readlookup2[(uint32_t)((s)+(a))>>12] + (uint32_t)((s) + (a))) )
#define readmemw(s,a) ((readlookup2[(uint32_t)((s)+(a))>>12]==-1 || (((s)+(a)) & 1))?readmemwl((s)+(a)):*(uint16_t *)(readlookup2[(uint32_t)((s)+(a))>>12]+(uint32_t)((s)+(a))))
#define readmeml(s,a) ((readlookup2[(uint32_t)((s)+(a))>>12]==-1 || (((s)+(a)) & 3))?readmemll((s)+(a)):*(uint32_t *)(readlookup2[(uint32_t)((s)+(a))>>12]+(uint32_t)((s)+(a))))
#define readmemq(s,a) ((readlookup2[(uint32_t)((s)+(a))>>12]==-1 || (((s)+(a)) & 7))?readmemql((s)+(a)):*(uint64_t *)(readlookup2[(uint32_t)((s)+(a))>>12]+(uint32_t)((s)+(a))))
#define writememb(s,a,v) if (writelookup2[(uint32_t)((s)+(a))>>12]==-1) writemembl((s)+(a),v); else *(uint8_t *)(writelookup2[(uint32_t)((s) + (a)) >> 12] + (uint32_t)((s) + (a))) = v
#define writememw(s,a,v) if (writelookup2[(uint32_t)((s)+(a))>>12]==-1 || (((s)+(a)) & 1)) writememwl((s)+(a),v); else *(uint16_t *)(writelookup2[(uint32_t)((s) + (a)) >> 12] + (uint32_t)((s) + (a))) = v
#define writememl(s,a,v) if (writelookup2[(uint32_t)((s)+(a))>>12]==-1 || (((s)+(a)) & 3)) writememll((s)+(a),v); else *(uint32_t *)(writelookup2[(uint32_t)((s) + (a)) >> 12] + (uint32_t)((s) + (a))) = v
#define writememq(s,a,v) if (writelookup2[(uint32_t)((s)+(a))>>12]==-1 || (((s)+(a)) & 7)) writememql((s)+(a),v); else *(uint64_t *)(writelookup2[(uint32_t)((s) + (a)) >> 12] + (uint32_t)((s) + (a))) = v
@ -183,7 +178,6 @@ static inline uint16_t geteaw()
{
if (cpu_mod == 3)
return cpu_state.regs[cpu_rm].w;
// cycles-=3;
if (eal_r)
return *(uint16_t *)eal_r;
return readmemw(easeg,cpu_state.eaaddr);
@ -193,7 +187,6 @@ static inline uint32_t geteal()
{
if (cpu_mod == 3)
return cpu_state.regs[cpu_rm].l;
// cycles-=3;
if (eal_r)
return *eal_r;
return readmeml(easeg,cpu_state.eaaddr);
@ -237,6 +230,3 @@ static inline void seteaq(uint64_t v)
#define getwordf() ((uint16_t)(fetchdat)); cpu_state.pc+=2
#define getbyte2f() ((uint8_t)(fetchdat>>8)); cpu_state.pc++
#define getword2f() ((uint16_t)(fetchdat>>8)); cpu_state.pc+=2
void x86_int(int num);

34
src/386_dynarec.c
View file

@ -31,37 +31,15 @@ int cpu_block_end = 0;
int nmi_enable = 1;
uint32_t oldpc2;
int trap;
int cpl_override=0;
int has_fpu;
int fpucount=0;
uint16_t ea_rseg;
int is486;
int cgate32;
uint8_t romext[32768];
uint8_t *ram,*rom;
uint32_t backupregs[16];
int oddeven=0;
int inttype;
uint32_t oldecx;
static inline void fetch_ea_32_long(uint32_t rmdat)
{
eal_r = eal_w = NULL;
easeg = cpu_state.ea_seg->base;
ea_rseg = cpu_state.ea_seg->seg;
if (cpu_rm == 4)
{
uint8_t sib = rmdat >> 8;
@ -88,7 +66,6 @@ static inline void fetch_ea_32_long(uint32_t rmdat)
else if ((sib & 6) == 4 && !cpu_state.ssegs)
{
easeg = ss;
ea_rseg = SS;
cpu_state.ea_seg = &cpu_state.seg_ss;
}
if (((sib >> 3) & 7) != 4)
@ -102,7 +79,6 @@ static inline void fetch_ea_32_long(uint32_t rmdat)
if (cpu_rm == 5 && !cpu_state.ssegs)
{
easeg = ss;
ea_rseg = SS;
cpu_state.ea_seg = &cpu_state.seg_ss;
}
if (cpu_mod == 1)
@ -134,7 +110,6 @@ static inline void fetch_ea_16_long(uint32_t rmdat)
{
eal_r = eal_w = NULL;
easeg = cpu_state.ea_seg->base;
ea_rseg = cpu_state.ea_seg->seg;
if (!cpu_mod && cpu_rm == 6)
{
cpu_state.eaaddr = getword();
@ -157,7 +132,6 @@ static inline void fetch_ea_16_long(uint32_t rmdat)
if (mod1seg[cpu_rm] == &ss && !cpu_state.ssegs)
{
easeg = ss;
ea_rseg = SS;
cpu_state.ea_seg = &cpu_state.seg_ss;
}
cpu_state.eaaddr &= 0xFFFF;
@ -423,9 +397,6 @@ int checkio(int port)
return d&(1<<(port&7));
}
int xout=0;
#define divexcp() { \
pclog("Divide exception at %04X(%06X):%04X\n",CS,cs,cpu_state.pc); \
x86_int(0); \
@ -482,11 +453,6 @@ void cpu_386_flags_rebuild()
flags_rebuild();
}
int oldi;
uint32_t testr[9];
int dontprint=0;
#define OP_TABLE(name) ops_ ## name
#define CLOCK_CYCLES(c) cycles -= (c)
#define CLOCK_CYCLES_ALWAYS(c) cycles -= (c)

2
src/386_dynarec_ops.c
View file

@ -18,7 +18,6 @@ static inline void fetch_ea_32_long(uint32_t rmdat)
{
eal_r = eal_w = NULL;
easeg = cpu_state.ea_seg->base;
ea_rseg = cpu_state.ea_seg->seg;
if (easeg != 0xFFFFFFFF && ((easeg + cpu_state.eaaddr) & 0xFFF) <= 0xFFC)
{
uint32_t addr = easeg + cpu_state.eaaddr;
@ -33,7 +32,6 @@ static inline void fetch_ea_16_long(uint32_t rmdat)
{
eal_r = eal_w = NULL;
easeg = cpu_state.ea_seg->base;
ea_rseg = cpu_state.ea_seg->seg;
if (easeg != 0xFFFFFFFF && ((easeg + cpu_state.eaaddr) & 0xFFF) <= 0xFFC)
{
uint32_t addr = easeg + cpu_state.eaaddr;

6
src/808x.c
View file

@ -40,8 +40,6 @@ void FETCHCOMPLETE();
#define IRQTEST ((cpu_state.flags & I_FLAG) && (pic.pend&~pic.mask) && !noint)
#undef readmemb
#undef readmemw
uint8_t readmemb(uint32_t a)
{
if (a!=(cs+cpu_state.pc)) memcycs+=4;
@ -479,8 +477,6 @@ void makeznptable()
}
int timetolive=0;
extern uint32_t oldpc2;
int indump = 0;
void dumpregs()
@ -568,7 +564,7 @@ void dumpregs()
else
printf("AX=%04X BX=%04X CX=%04X DX=%04X DI=%04X SI=%04X BP=%04X SP=%04X\n",AX,BX,CX,DX,DI,SI,BP,SP);
printf("PC=%04X CS=%04X DS=%04X ES=%04X SS=%04X FLAGS=%04X\n",cpu_state.pc,CS,DS,ES,SS,cpu_state.flags);
printf("%04X %04X\n",cpu_state.oldpc, oldpc2);
printf("%04X\n",cpu_state.oldpc);
printf("%i ins\n",ins);
if (is386)
printf("In %s mode\n",(msw&1)?((cpu_state.eflags&VM_FLAG)?"V86":"protected"):"real");

2
src/cpu.c
View file

@ -102,6 +102,8 @@ int is386;
uint64_t tsc = 0;
int is486;
int timing_rr;
int timing_mr, timing_mrl;
int timing_rm, timing_rml;

4
src/ibm.h
View file

@ -32,10 +32,6 @@ int writelnext;
extern int mmu_perm;
#define readmemb(a) ((readlookup2[(a)>>12]==-1)?readmembl(a):*(uint8_t *)(readlookup2[(a) >> 12] + (a)))
#define readmemw(s,a) ((readlookup2[(uint32_t)((s)+(a))>>12]==-1 || (((s)+(a)) & 1))?readmemwl((s)+(a)):*(uint16_t *)(readlookup2[(uint32_t)((s)+(a))>>12]+(uint32_t)((s)+(a))))
#define readmeml(s,a) ((readlookup2[(uint32_t)((s)+(a))>>12]==-1 || (((s)+(a)) & 3))?readmemll((s)+(a)):*(uint32_t *)(readlookup2[(uint32_t)((s)+(a))>>12]+(uint32_t)((s)+(a))))
uint8_t readmembl(uint32_t addr);
void writemembl(uint32_t addr, uint8_t val);
uint16_t readmemwl(uint32_t addr);

1
src/pc.c
View file

@ -913,7 +913,6 @@ void saveconfig(char *fn)
config_set_int(CFG_MACHINE, NULL, "video_speed", video_speed);
config_set_string(CFG_MACHINE, NULL, "sndcard", sound_card_get_internal_name(sound_card_current));
config_set_int(CFG_MACHINE, NULL, "cpu_speed", cpuspeed);
config_set_int(CFG_MACHINE, NULL, "has_fpu", hasfpu);
config_set_string(CFG_MACHINE, NULL, "disc_a", discfns[0]);
config_set_string(CFG_MACHINE, NULL, "disc_b", discfns[1]);
config_set_string(CFG_MACHINE, NULL, "hdd_controller", hdd_controller_name);

4
src/x86.h
View file

@ -7,6 +7,8 @@ extern int oldcpl;
extern int nmi_enable;
extern int trap;
extern int output;
extern int timetolive;
@ -88,6 +90,8 @@ void loadcscall(uint16_t seg, uint32_t old_pc);
void loadcsjmp(uint16_t seg, uint32_t old_pc);
void pmoderetf(int is32, uint16_t off);
void pmodeiret(int is32);
void x86_int(int num);
void x86_int_sw(int num);
int x86_int_sw_rm(int num);

2
src/x86_ops_rep.h
View file

@ -1,5 +1,3 @@
extern int trap;
#define REP_OPS(size, CNT_REG, SRC_REG, DEST_REG) \
static int opREP_INSB_ ## size(uint32_t fetchdat) \
{ \