np2/i286x/i286x.cpp - diff

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Diff for /np2/i286x/i286x.cpp between versions 1.1 and 1.7

version 1.1, 2003/10/16 17:57:25	version 1.7, 2003/12/08 00:55:31
Line 1	Line 1
#include "compiler.h"	#include "compiler.h"
#include "i286.h"	#include "cpucore.h"
#include "i286x.h"	#include "i286x.h"
#include "i286xadr.h"	#include "i286xadr.h"
#include "i286xs.h"	#include "i286xs.h"
Line 15	Line 15
#include "dmap.h"	#include "dmap.h"


I286REGS i286r;	I286CORE i286core;
I286STAT i286s;
I286DTR GDTR;
I286DTR IDTR;
UINT16 MSW;

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 const BYTE iflags[256] = { // Z_FLAG	Line 52 const BYTE iflags[256] = { // Z_FLAG
0x80, 0x84, 0x84, 0x80, 0x84, 0x80, 0x80, 0x84};	0x80, 0x84, 0x84, 0x80, 0x84, 0x80, 0x80, 0x84};


void i286_reset(void) {	void i286x_initialize(void) {

i286xadr_init(); // 毎回通すのはどうか…	i286xadr_init();
v30init(); // 毎回通すのはどうか…	v30xinit();
ZeroMemory(&i286r, sizeof(i286r));	}
ZeroMemory(&i286s, sizeof(i286s));
	void i286x_reset(void) {

	ZeroMemory(&i286core.s, sizeof(i286core.s));
I286_CS = 0x1fc0;	I286_CS = 0x1fc0;
CS_BASE = 0x1fc00;	CS_BASE = 0x1fc00;
ZeroMemory(&GDTR, sizeof(GDTR));	i286core.s.adrsmask = 0xfffff;
ZeroMemory(&IDTR, sizeof(IDTR));
MSW = 0;
}	}


LABEL void i286_resetprefetch(void) {	LABEL void i286x_resetprefetch(void) {

__asm {	__asm {
pushad	pushad
movzx esi, I286_IP	movzx esi, I286_IP
RESET_XPREFETCH	RESET_XPREFETCH
mov dword ptr (i286s.prefetchque), ebx	mov dword ptr (i286core.s.prefetchque), ebx
popad	popad
ret	ret
}	}
}	}

LABEL void __fastcall i286_interrupt(BYTE vect) {	LABEL void __fastcall i286x_interrupt(BYTE vect) {

__asm {	__asm {
pushad	pushad
Line 92 LABEL void __fastcall i286_interrupt(BYT	Line 89 LABEL void __fastcall i286_interrupt(BYT
sub bx, 2	sub bx, 2

// hlt..	// hlt..
cmp byte ptr (i286s.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 124 nonhlt: mov edi, SS_BASE	Line 121 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 (i286s.prefetchque), ebx	mov dword ptr (i286core.s.prefetchque), ebx

popad	popad
ret	ret
Line 172 LABEL void __fastcall i286x_localint(voi	Line 169 LABEL void __fastcall i286x_localint(voi



LABEL void i286(void) {	LABEL void i286x(void) {

__asm {	__asm {
pushad	pushad
mov ebx, dword ptr (i286s.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 186 LABEL void i286(void) {	Line 183 LABEL void i286(void) {

i286_mnlp: movzx eax, bl	i286_mnlp: movzx eax, bl
call i286op[eax*4]	call i286op[eax*4]
cmp nevent.remainclock, 0	cmp I286_REMCLOCK, 0
jg i286_mnlp	jg i286_mnlp
mov dword ptr (i286s.prefetchque), ebx	mov dword ptr (i286core.s.prefetchque), ebx
mov I286_IP, si	mov I286_IP, si
popad	popad
ret	ret
Line 197 i286_mnlp: movzx eax, bl	Line 194 i286_mnlp: movzx eax, bl
i286_dma_mnlp: movzx eax, bl	i286_dma_mnlp: movzx eax, bl
call i286op[eax*4]	call i286op[eax*4]
call dmap_i286	call dmap_i286
cmp nevent.remainclock, 0	cmp I286_REMCLOCK, 0
jg i286_dma_mnlp	jg i286_dma_mnlp
mov dword ptr (i286s.prefetchque), ebx	mov dword ptr (i286core.s.prefetchque), ebx
mov I286_IP, si	mov I286_IP, si
popad	popad
ret	ret
Line 211 i286_trapping: movzx eax, bl	Line 208 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 (i286s.prefetchque), ebx	i286notrap: mov dword ptr (i286core.s.prefetchque), ebx
mov I286_IP, si	mov I286_IP, si
popad	popad
ret	ret
Line 220 i286notrap: mov dword ptr (i286s.prefe	Line 217 i286notrap: mov dword ptr (i286s.prefe



LABEL void i286_step(void) {	LABEL void i286x_step(void) {

__asm {	__asm {
pushad	pushad
mov ebx, dword ptr (i286s.prefetchque)	mov ebx, dword ptr (i286core.s.prefetchque)
movzx esi, I286_IP	movzx esi, I286_IP

movzx eax, bl	movzx eax, bl
Line 235 LABEL void i286_step(void) {	Line 232 LABEL void i286_step(void) {
mov ecx, 1	mov ecx, 1
call i286x_localint	call i286x_localint
nexts:	nexts:
mov dword ptr (i286s.prefetchque), ebx	mov dword ptr (i286core.s.prefetchque), ebx
mov I286_IP, si	mov I286_IP, si

call dmap_i286	call dmap_i286
Line 250 nexts:	Line 247 nexts:
LABEL void removeprefix(void) {	LABEL void removeprefix(void) {

__asm {	__asm {
mov i286s.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 579 I286 pop_ss(void) { // 17: pop ss	Line 576 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 i286s.prefix, 0 // 00/06/24	cmp i286core.s.prefix, 0 // 00/06/24
je noprefix	jne prefix_exist
call removeprefix
pop eax
noprefix:	noprefix:
movzx ebp, bh	movzx ebp, bh
GET_NEXTPRE1	GET_NEXTPRE1
jmp i286op[ebp*4]	jmp i286op[ebp*4]

	prefix_exist: pop eax // eax<-offset removeprefix
	call eax
	jmp noprefix
}	}
}	}

Line 2420 I286 mov_seg_ea(void) { // 8E: mov	Line 2419 I286 mov_seg_ea(void) { // 8E: mov
segsetr:ret	segsetr:ret

align 16	align 16
setss: cmp i286s.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 2668 I286 _popf(void) { // 9D: popf	Line 2667 I286 _popf(void) { // 9D: popf
and ah, 3	and ah, 3
cmp ah, 3	cmp ah, 3
sete I286_TRAP	sete I286_TRAP
I286IRQCHECKTERM
	test ah, 2 // fast_intr
	je nextop
	cmp pic.ext_irq, 0
	jne nextop
	mov al, pic.pi[0].imr
	mov ah, pic.pi[1].imr
	not ax
	test al, pic.pi[0].irr
	jne irqcheck
	test al, pic.pi[1].irr
	jne irqcheck
	nextop: ret

	irqcheck: I286IRQCHECKTERM
}	}
}	}

Line 3582 I286 _iret(void) { // CF: iret	Line 3595 I286 _iret(void) { // CF: iret
cmp ah, 3	cmp ah, 3
sete I286_TRAP	sete I286_TRAP
RESET_XPREFETCH	RESET_XPREFETCH
I286IRQCHECKTERM
	test I286_FLAG, I_FLAG // fast_intr
	je nextop
	cmp pic.ext_irq, 0
	jne nextop
	mov al, pic.pi[0].imr
	mov ah, pic.pi[1].imr
	not ax
	test al, pic.pi[0].irr
	jne irqcheck
	test al, pic.pi[1].irr
	jne irqcheck
	nextop: ret

	irqcheck: I286IRQCHECKTERM
}	}
}	}

Line 3897 I286 in_al_data8(void) { // E4: in	Line 3924 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 i286s.inport, eax	mov i286core.s.inport, eax
movzx ecx, bh	movzx ecx, bh
#if 1	#if 1
call iocore_inp8	call iocore_inp8
Line 3905 I286 in_al_data8(void) { // E4: in	Line 3932 I286 in_al_data8(void) { // E4: in
call i286_in	call i286_in
#endif	#endif
mov I286_AL, al	mov I286_AL, al
mov i286s.inport, 0	mov i286core.s.inport, 0
GET_NEXTPRE2	GET_NEXTPRE2
ret	ret
}	}
Line 3917 I286 in_ax_data8(void) { // E5: in	Line 3944 I286 in_ax_data8(void) { // E5: in
I286CLOCK(5)	I286CLOCK(5)
lea eax, [esi + 2]	lea eax, [esi + 2]
add eax, CS_BASE	add eax, CS_BASE
mov i286s.inport, eax
movzx ecx, bh	movzx ecx, bh
call iocore_inp16	call iocore_inp16
mov I286_AX, ax	mov I286_AX, ax
Line 4093 I286 _repe(void) { // F3: repe	Line 4119 I286 _repe(void) { // F3: repe
I286 _hlt(void) { // F4: hlt	I286 _hlt(void) { // F4: hlt

__asm {	__asm {
mov nevent.remainclock, -1	mov I286_REMCLOCK, -1
ret	ret
}	}
}	}
Line 4166 I286 _sti(void) { // FB: sti	Line 4192 I286 _sti(void) { // FB: sti
__asm {	__asm {
GET_NEXTPRE1	GET_NEXTPRE1
I286CLOCK(2)	I286CLOCK(2)
or I286_FLAG, I_FLAG	cmp i286core.s.prefix, 0 // ver0.26 00/10/08
	jne prefix_exist // 前方分岐ジャンプなので。
	noprefix:
	movzx ebp, bl
	bts I286_FLAG, 9
	jne jmp_nextop
test I286_FLAG, T_FLAG	test I286_FLAG, T_FLAG
setne I286_TRAP	setne I286_TRAP

cmp i286s.prefix, 0 // ver0.26 00/10/08	cmp pic.ext_irq, 0 // fast_intr
jne prefix_exist // 前方分岐ジャンプなので。	jne jmp_nextop
noprefix: movzx eax, bl	mov al, pic.pi[0].imr
call i286op[eax*4]	mov ah, pic.pi[1].imr
	not ax
	test al, pic.pi[0].irr
	jne nextopandexit
	test al, pic.pi[1].irr
	jne nextopandexit
	jmp_nextop: jmp i286op[ebp*4]

	nextopandexit: call i286op[ebp*4]
I286IRQCHECKTERM	I286IRQCHECKTERM

prefix_exist: pop eax // eax<-offset removeprefix	prefix_exist: pop eax // eax<-offset removeprefix

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