np2/i286x/i286x.cpp - diff

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Diff for /np2/i286x/i286x.cpp between versions 1.3 and 1.4

version 1.3, 2003/10/19 14:56:15	version 1.4, 2003/12/01 10:45:46
Line 15	Line 15
#include "dmap.h"	#include "dmap.h"


I286REG i286reg;	I286CORE i286core;

const BYTE iflags[256] = { // Z_FLAG, S_FLAG, P_FLAG	const BYTE iflags[256] = { // Z_FLAG, S_FLAG, P_FLAG
0x44, 0x00, 0x00, 0x04, 0x00, 0x04, 0x04, 0x00,	0x44, 0x00, 0x00, 0x04, 0x00, 0x04, 0x04, 0x00,
Line 56 void i286_reset(void) {	Line 56 void i286_reset(void) {

i286xadr_init(); // 毎回通すのはどうか…	i286xadr_init(); // 毎回通すのはどうか…
v30init(); // 毎回通すのはどうか…	v30init(); // 毎回通すのはどうか…
ZeroMemory(&i286reg, sizeof(i286reg));	ZeroMemory(&i286core.s, sizeof(i286core.s));
I286_CS = 0x1fc0;	I286_CS = 0x1fc0;
CS_BASE = 0x1fc00;	CS_BASE = 0x1fc00;
	i286core.s.adrsmask = 0xfffff;
}	}


Line 68 LABEL void i286_resetprefetch(void) {	Line 69 LABEL void i286_resetprefetch(void) {
pushad	pushad
movzx esi, I286_IP	movzx esi, I286_IP
RESET_XPREFETCH	RESET_XPREFETCH
mov dword ptr (i286reg.prefetchque), ebx	mov dword ptr (i286core.s.prefetchque), ebx
popad	popad
ret	ret
}	}
Line 84 LABEL void __fastcall i286_interrupt(BYT	Line 85 LABEL void __fastcall i286_interrupt(BYT
sub bx, 2	sub bx, 2

// hlt..	// hlt..
cmp byte ptr (i286reg.prefetchque), 0f4h // hlt	cmp byte ptr (i286core.s.prefetchque), 0f4h // hlt
jne short nonhlt	jne short nonhlt
inc I286_IP	inc I286_IP
nonhlt: mov edi, SS_BASE	nonhlt: mov edi, SS_BASE
Line 116 nonhlt: mov edi, SS_BASE	Line 117 nonhlt: mov edi, SS_BASE
shl eax, 4 // make segreg	shl eax, 4 // make segreg
mov CS_BASE, eax	mov CS_BASE, eax
RESET_XPREFETCH	RESET_XPREFETCH
mov dword ptr (i286reg.prefetchque), ebx	mov dword ptr (i286core.s.prefetchque), ebx

popad	popad
ret	ret
Line 168 LABEL void i286(void) {	Line 169 LABEL void i286(void) {

__asm {	__asm {
pushad	pushad
mov ebx, dword ptr (i286reg.prefetchque)	mov ebx, dword ptr (i286core.s.prefetchque)
movzx esi, I286_IP	movzx esi, I286_IP

cmp I286_TRAP, 0	cmp I286_TRAP, 0
Line 180 i286_mnlp: movzx eax, bl	Line 181 i286_mnlp: movzx eax, bl
call i286op[eax*4]	call i286op[eax*4]
cmp I286_REMCLOCK, 0	cmp I286_REMCLOCK, 0
jg i286_mnlp	jg i286_mnlp
mov dword ptr (i286reg.prefetchque), ebx	mov dword ptr (i286core.s.prefetchque), ebx
mov I286_IP, si	mov I286_IP, si
popad	popad
ret	ret
Line 191 i286_dma_mnlp: movzx eax, bl	Line 192 i286_dma_mnlp: movzx eax, bl
call dmap_i286	call dmap_i286
cmp I286_REMCLOCK, 0	cmp I286_REMCLOCK, 0
jg i286_dma_mnlp	jg i286_dma_mnlp
mov dword ptr (i286reg.prefetchque), ebx	mov dword ptr (i286core.s.prefetchque), ebx
mov I286_IP, si	mov I286_IP, si
popad	popad
ret	ret
Line 203 i286_trapping: movzx eax, bl	Line 204 i286_trapping: movzx eax, bl
je i286notrap	je i286notrap
mov ecx, 1	mov ecx, 1
call i286x_localint	call i286x_localint
i286notrap: mov dword ptr (i286reg.prefetchque), ebx	i286notrap: mov dword ptr (i286core.s.prefetchque), ebx
mov I286_IP, si	mov I286_IP, si
popad	popad
ret	ret
Line 216 LABEL void i286_step(void) {	Line 217 LABEL void i286_step(void) {

__asm {	__asm {
pushad	pushad
mov ebx, dword ptr (i286reg.prefetchque)	mov ebx, dword ptr (i286core.s.prefetchque)
movzx esi, I286_IP	movzx esi, I286_IP

movzx eax, bl	movzx eax, bl
Line 227 LABEL void i286_step(void) {	Line 228 LABEL void i286_step(void) {
mov ecx, 1	mov ecx, 1
call i286x_localint	call i286x_localint
nexts:	nexts:
mov dword ptr (i286reg.prefetchque), ebx	mov dword ptr (i286core.s.prefetchque), ebx
mov I286_IP, si	mov I286_IP, si

call dmap_i286	call dmap_i286
Line 242 nexts:	Line 243 nexts:
LABEL void removeprefix(void) {	LABEL void removeprefix(void) {

__asm {	__asm {
mov i286reg.prefix, 0	mov i286core.s.prefix, 0
mov eax, DS_BASE	mov eax, DS_BASE
mov DS_FIX, eax	mov DS_FIX, eax
mov eax, SS_BASE	mov eax, SS_BASE
Line 571 I286 pop_ss(void) { // 17: pop ss	Line 572 I286 pop_ss(void) { // 17: pop ss
shl eax, 4 // make segreg	shl eax, 4 // make segreg
mov SS_BASE, eax	mov SS_BASE, eax
mov SS_FIX, eax	mov SS_FIX, eax
cmp i286reg.prefix, 0 // 00/06/24	cmp i286core.s.prefix, 0 // 00/06/24
je noprefix	je noprefix
call removeprefix	call removeprefix
pop eax	pop eax
Line 2412 I286 mov_seg_ea(void) { // 8E: mov	Line 2413 I286 mov_seg_ea(void) { // 8E: mov
segsetr:ret	segsetr:ret

align 16	align 16
setss: cmp i286reg.prefix, 0 // 00/05/13	setss: cmp i286core.s.prefix, 0 // 00/05/13
je noprefix	je noprefix
pop eax	pop eax
call eax // eax<-offset removeprefix	call eax // eax<-offset removeprefix
Line 3889 I286 in_al_data8(void) { // E4: in	Line 3890 I286 in_al_data8(void) { // E4: in
I286CLOCK(5)	I286CLOCK(5)
lea eax, [esi + 2]	lea eax, [esi + 2]
add eax, CS_BASE	add eax, CS_BASE
mov i286reg.inport, eax	mov i286core.s.inport, eax
movzx ecx, bh	movzx ecx, bh
#if 1	#if 1
call iocore_inp8	call iocore_inp8
Line 3897 I286 in_al_data8(void) { // E4: in	Line 3898 I286 in_al_data8(void) { // E4: in
call i286_in	call i286_in
#endif	#endif
mov I286_AL, al	mov I286_AL, al
mov i286reg.inport, 0	mov i286core.s.inport, 0
GET_NEXTPRE2	GET_NEXTPRE2
ret	ret
}	}
Line 4161 I286 _sti(void) { // FB: sti	Line 4162 I286 _sti(void) { // FB: sti
test I286_FLAG, T_FLAG	test I286_FLAG, T_FLAG
setne I286_TRAP	setne I286_TRAP

cmp i286reg.prefix, 0 // ver0.26 00/10/08	cmp i286core.s.prefix, 0 // ver0.26 00/10/08
jne prefix_exist // 前方分岐ジャンプなので。	jne prefix_exist // 前方分岐ジャンプなので。
noprefix: movzx eax, bl	noprefix: movzx eax, bl
call i286op[eax*4]	call i286op[eax*4]

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Removed from v.1.3
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	Added in v.1.4