80486DX2-66/86Box-fork
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Reworked some memory and CPU parts to fix bugs, improve performance by getting rid of excess calls to mmutranslate(), and properly invalidate page bytes on page invalidation on new recompiler.

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OBattler
2021-03-24 19:52:44 +01:00
parent be8c03b3c0
commit 1a643ab040
9 changed files with 897 additions and 671 deletions
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40
src/cpu/386_common.h
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@@ -21,16 +21,30 @@
#include <stddef.h>
#define readmemb_n(s,a,b) ((readlookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF)?readmembl_no_mmut((s)+(a),b): *(uint8_t *)(readlookup2[(uint32_t)((s)+(a))>>12] + (uintptr_t)((s) + (a))) )
#define readmemw_n(s,a,b) ((readlookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF || (((s)+(a)) & 1))?readmemwl_no_mmut((s)+(a),b):*(uint16_t *)(readlookup2[(uint32_t)((s)+(a))>>12]+(uint32_t)((s)+(a))))
#define readmeml_n(s,a,b) ((readlookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF || (((s)+(a)) & 3))?readmemll_no_mmut((s)+(a),b):*(uint32_t *)(readlookup2[(uint32_t)((s)+(a))>>12]+(uint32_t)((s)+(a))))
#define readmemb(s,a) ((readlookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF)?readmembl((s)+(a)): *(uint8_t *)(readlookup2[(uint32_t)((s)+(a))>>12] + (uintptr_t)((s) + (a))) )
#define readmemw(s,a) ((readlookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF || (((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]==LOOKUP_INV || (s)==0xFFFFFFFF || (((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]==LOOKUP_INV || (s)==0xFFFFFFFF || (((s)+(a)) & 7))?readmemql((s)+(a)):*(uint64_t *)(readlookup2[(uint32_t)((s)+(a))>>12]+(uintptr_t)((s)+(a))))
#define writememb_n(s,a,b,v) if (writelookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF) writemembl_no_mmut((s)+(a),b,v); else *(uint8_t *)(writelookup2[(uint32_t)((s) + (a)) >> 12] + (uintptr_t)((s) + (a))) = v
#define writememw_n(s,a,b,v) if (writelookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF || (((s)+(a)) & 1)) writememwl_no_mmut((s)+(a),b,v); else *(uint16_t *)(writelookup2[(uint32_t)((s) + (a)) >> 12] + (uintptr_t)((s) + (a))) = v
#define writememl_n(s,a,b,v) if (writelookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF || (((s)+(a)) & 3)) writememll_no_mmut((s)+(a),b,v); else *(uint32_t *)(writelookup2[(uint32_t)((s) + (a)) >> 12] + (uintptr_t)((s) + (a))) = v
#define writememb(s,a,v) if (writelookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF) writemembl((s)+(a),v); else *(uint8_t *)(writelookup2[(uint32_t)((s) + (a)) >> 12] + (uintptr_t)((s) + (a))) = v
#define writememw(s,a,v) if (writelookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF || (((s)+(a)) & 1)) writememwl((s)+(a),v); else *(uint16_t *)(writelookup2[(uint32_t)((s) + (a)) >> 12] + (uintptr_t)((s) + (a))) = v
#define writememl(s,a,v) if (writelookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF || (((s)+(a)) & 3)) writememll((s)+(a),v); else *(uint32_t *)(writelookup2[(uint32_t)((s) + (a)) >> 12] + (uintptr_t)((s) + (a))) = v
#define writememq(s,a,v) if (writelookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF || (((s)+(a)) & 7)) writememql((s)+(a),v); else *(uint64_t *)(writelookup2[(uint32_t)((s) + (a)) >> 12] + (uintptr_t)((s) + (a))) = v
#define do_mmut_rb(s,a,b) if (readlookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF) do_mmutranslate((s)+(a), b, 1, 0)
#define do_mmut_rw(s,a,b) if (readlookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF || (((s)+(a)) & 1)) do_mmutranslate((s)+(a), b, 2, 0)
#define do_mmut_rl(s,a,b) if (readlookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF || (((s)+(a)) & 3)) do_mmutranslate((s)+(a), b, 4, 0)
#define do_mmut_wb(s,a,b) if (writelookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF) do_mmutranslate((s)+(a), b, 1, 1)
#define do_mmut_ww(s,a,b) if (writelookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF || (((s)+(a)) & 1)) do_mmutranslate((s)+(a), b, 2, 1)
#define do_mmut_wl(s,a,b) if (writelookup2[(uint32_t)((s)+(a))>>12]==LOOKUP_INV || (s)==0xFFFFFFFF || (((s)+(a)) & 3)) do_mmutranslate((s)+(a), b, 4, 1)
int checkio(int port);
@@ -82,12 +96,6 @@ int checkio(int port);
else \
x86np("Read from seg not present", (chseg)->seg & 0xfffc); \
return 1; \
} \
if (cr0 >> 31) { \
(void) mmutranslatereal((chseg)->base + low, 0); \
(void) mmutranslatereal((chseg)->base + high, 0); \
if (cpu_state.abrt) \
return 1; \
}
#define CHECK_READ_REP(chseg, low, high) \
@@ -103,12 +111,6 @@ int checkio(int port);
else \
x86np("Read from seg not present", (chseg)->seg & 0xfffc); \
break; \
} \
if (cr0 >> 31) { \
(void) mmutranslatereal((chseg)->base + low, 0); \
(void) mmutranslatereal((chseg)->base + high, 0); \
if (cpu_state.abrt) \
break; \
}
#define CHECK_WRITE_COMMON(chseg, low, high) \
@@ -127,13 +129,7 @@ int checkio(int port);
}
#define CHECK_WRITE(chseg, low, high) \
CHECK_WRITE_COMMON(chseg, low, high) \
if (cr0 >> 31) { \
(void) mmutranslatereal((chseg)->base + low, 1); \
(void) mmutranslatereal((chseg)->base + high, 1); \
if (cpu_state.abrt) \
return 1; \
}
CHECK_WRITE_COMMON(chseg, low, high)
#define CHECK_WRITE_REP(chseg, low, high) \
if ((low < (chseg)->limit_low) || (high > (chseg)->limit_high)) \
@@ -148,12 +144,6 @@ int checkio(int port);
else \
x86np("Write (REP) to seg not present", (chseg)->seg & 0xfffc); \
break; \
} \
if (cr0 >> 31) { \
(void) mmutranslatereal((chseg)->base + low, 1); \
(void) mmutranslatereal((chseg)->base + high, 1); \
if (cpu_state.abrt) \
break; \
}