np2/i286x/i286x.cpp - diff

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Diff for /np2/i286x/i286x.cpp between versions 1.1 and 1.14

version 1.1, 2003/10/16 17:57:25	version 1.14, 2004/01/05 05:04:53
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"
#include "i286xrep.h"	#include "i286xrep.h"
#include "i286xcts.h"	#include "i286xcts.h"
#include "memory.h"
#include "pccore.h"	#include "pccore.h"
#include "iocore.h"	#include "iocore.h"
#include "i286x.mcr"	#include "i286x.mcr"
Line 15	Line 14
#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 51 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));
I286_CS = 0x1fc0;
CS_BASE = 0x1fc00;
ZeroMemory(&GDTR, sizeof(GDTR));
ZeroMemory(&IDTR, sizeof(IDTR));
MSW = 0;
}	}

	static void i286x_initreg(void) {

LABEL void i286_resetprefetch(void) {	I286_CS = 0xf000;
	CS_BASE = 0xf0000;
	I286_IP = 0xfff0;
	i286core.s.adrsmask = 0xfffff;
	i286x_resetprefetch();
	}

	void i286x_reset(void) {

	ZeroMemory(&i286core.s, sizeof(i286core.s));
	i286x_initreg();
	}

	void i286x_shut(void) {

	ZeroMemory(&i286core.s, offsetof(I286STAT, cpu_type));
	i286x_initreg();
	}


	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 101 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 133 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 171 LABEL void __fastcall i286x_localint(voi	Line 180 LABEL void __fastcall i286x_localint(voi
}	}


	// プロテクトモードのセレクタ(in ax / ret eax)
	LABEL void __fastcall i286x_selector(void) {

	__asm {
	mov ecx, dword ptr (I286_GDTR.base)
	test eax, 4
	je short ixsl_1
	mov ecx, dword ptr (I286_LDTRC.base)
	ixsl_1: and eax, not 7
	and ecx, 0ffffffh
	lea ecx, [ecx + eax + 2]
	call i286_memoryread_w
	push eax
	add ecx, 2
	call i286_memoryread
	pop ecx
	and eax, 0ffh
	movzx ecx, cx
	shl eax, 16
	add eax, ecx
	ret
	}
	}


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 219 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 230 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 244 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 253 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 268 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 283 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 367 I286 pop_es(void) { // 07: pop es	Line 400 I286 pop_es(void) { // 07: pop es
__asm {	__asm {
I286CLOCK(5)	I286CLOCK(5)
REGPOP(I286_ES)	REGPOP(I286_ES)
and eax, 00ffffh	test I286_MSW, MSW_PE
	jne short pop_es_pe
	movzx eax, ax
shl eax, 4 // make segreg	shl eax, 4 // make segreg
mov ES_BASE, eax	pop_es_base: mov ES_BASE, eax
GET_NEXTPRE1	GET_NEXTPRE1
ret	ret

	pop_es_pe: push offset pop_es_base
	jmp i286x_selector
}	}
}	}

Line 575 I286 pop_ss(void) { // 17: pop ss	Line 613 I286 pop_ss(void) { // 17: pop ss
__asm {	__asm {
I286CLOCK(5)	I286CLOCK(5)
REGPOP(I286_SS)	REGPOP(I286_SS)
and eax, 00ffffh	test I286_MSW, MSW_PE
	jne short pop_ss_pe
	movzx eax, ax
shl eax, 4 // make segreg	shl eax, 4 // make segreg
mov SS_BASE, eax	pop_ss_base: 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]

	pop_ss_pe: push offset pop_ss_base
	jmp i286x_selector

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

Line 697 I286 pop_ds(void) { // 1F: pop ds	Line 742 I286 pop_ds(void) { // 1F: pop ds
__asm {	__asm {
I286CLOCK(5)	I286CLOCK(5)
REGPOP(I286_DS)	REGPOP(I286_DS)
and eax, 00ffffh	test I286_MSW, MSW_PE
	jne short pop_ds_pe
	movzx eax, ax
shl eax, 4 // make segreg	shl eax, 4 // make segreg
mov DS_BASE, eax	pop_ds_base: mov DS_BASE, eax
mov DS_FIX, eax	mov DS_FIX, eax
GET_NEXTPRE1	GET_NEXTPRE1
ret	ret

	pop_ds_pe: push offset pop_ds_base
	jmp i286x_selector
}	}
}	}

Line 1679 I286 _insb(void) { // 6C: insb	Line 1729 I286 _insb(void) { // 6C: insb
__asm {	__asm {
GET_NEXTPRE1	GET_NEXTPRE1
I286CLOCK(5)	I286CLOCK(5)
#if 1
movzx ecx, I286_DX	movzx ecx, I286_DX
call iocore_inp8	call iocore_inp8
#else
mov cx, I286_DX
call i286_in
#endif
mov dl, al	mov dl, al
movzx ecx, I286_ES	movzx ecx, I286_ES
shl ecx, 4	shl ecx, 4
Line 1726 I286 _outsb(void) { // 6E: outsb	Line 1771 I286 _outsb(void) { // 6E: outsb
mov dl, al	mov dl, al
STRING_DIR	STRING_DIR
add I286_SI, ax	add I286_SI, ax
#if 1
movzx ecx, I286_DX	movzx ecx, I286_DX
jmp iocore_out8	jmp iocore_out8
#else
mov cx, I286_DX
jmp i286_out
#endif
}	}
}	}

Line 2403 I286 mov_seg_ea(void) { // 8E: mov	Line 2443 I286 mov_seg_ea(void) { // 8E: mov
GET_NEXTPRE2	GET_NEXTPRE2
mov ax, word ptr I286_REG[edi*2]	mov ax, word ptr I286_REG[edi*2]
jmp segset	jmp segset
align 16	align 4
src_memory:	src_memory:
I286CLOCK(5)	I286CLOCK(5)
call p_ea_dst[eax*4]	call p_ea_dst[eax*4]
call i286_memoryread_w	call i286_memoryread_w
segset:	segset:
mov word ptr I286_SEGREG[ebp], ax	mov word ptr I286_SEGREG[ebp], ax
and eax, 0000ffffh	test I286_MSW, MSW_PE
	jne short mov_seg_pe
	movzx eax, ax
shl eax, 4 // make segreg	shl eax, 4 // make segreg
mov SEG_BASE[ebp*2], eax	mov_seg_base: mov SEG_BASE[ebp*2], eax
sub ebp, 2*2	sub ebp, 2*2
jc segsetr	jc short segsetr
mov SS_FIX[ebp*2], eax	mov SS_FIX[ebp*2], eax
je setss	je short setss
segsetr:ret	segsetr:ret

align 16	setss: cmp i286core.s.prefix, 0 // 00/05/13
setss: cmp i286s.prefix, 0 // 00/05/13
je noprefix	je noprefix
pop eax	pop eax
call eax // eax<-offset removeprefix	call eax // eax<-offset removeprefix
Line 2428 I286 mov_seg_ea(void) { // 8E: mov	Line 2469 I286 mov_seg_ea(void) { // 8E: mov
movzx eax, bl	movzx eax, bl
jmp i286op[eax*4]	jmp i286op[eax*4]

align 16	mov_seg_pe: push offset mov_seg_base
fixcs:	jmp i286x_selector
INT_NUM(6)
	fixcs: INT_NUM(6)
}	}
}	}

Line 2668 I286 _popf(void) { // 9D: popf	Line 2710 I286 _popf(void) { // 9D: popf
and ah, 3	and ah, 3
cmp ah, 3	cmp ah, 3
sete I286_TRAP	sete I286_TRAP
I286IRQCHECKTERM
	je irqcheck // fast_intr
	test ah, 2
	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 ah, pic.pi[1].irr
	jne irqcheck
	nextop: ret

	irqcheck: I286IRQCHECKTERM
}	}
}	}

Line 3281 I286 les_r16_ea(void) { // C4: les	Line 3338 I286 les_r16_ea(void) { // C4: les
shl eax, 4 // make segreg	shl eax, 4 // make segreg
mov ES_BASE, eax	mov ES_BASE, eax
ret	ret
align 16	align 4
src_register:	src_register:
INT_NUM(6)	INT_NUM(6)
}	}
Line 3542 I286 int_data8(void) { // CD: int	Line 3599 I286 int_data8(void) { // CD: int
I286 _into(void) { // CE: into	I286 _into(void) { // CE: into

__asm {	__asm {
	I286CLOCK(4)
test I286_FLAG, O_FLAG	test I286_FLAG, O_FLAG
jne intovf	jne intovf
I286CLOCK(4)
GET_NEXTPRE1	GET_NEXTPRE1
ret	ret
align 16
intovf:	intovf: INT_NUM(4)
I286CLOCK(24)
INT_NUM(4)
}	}
}	}

Line 3582 I286 _iret(void) { // CF: iret	Line 3637 I286 _iret(void) { // CF: iret
cmp ah, 3	cmp ah, 3
sete I286_TRAP	sete I286_TRAP
RESET_XPREFETCH	RESET_XPREFETCH
I286IRQCHECKTERM
	cmp I286_TRAP, 0 // fast_intr
	jne irqcheck
	test I286_FLAG, I_FLAG
	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 ah, pic.pi[1].irr
	jne irqcheck
	nextop: ret

	irqcheck: I286IRQCHECKTERM
}	}
}	}

Line 3751 nzflagsed: xor al, ah	Line 3822 nzflagsed: xor al, ah
or I286_FLAGL, al	or I286_FLAGL, al
GET_NEXTPRE2	GET_NEXTPRE2
ret	ret
align 16
div0:	div0: INT_NUM(0)
INT_NUM(0)
}	}
}	}

Line 3897 I286 in_al_data8(void) { // E4: in	Line 3967 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 I286_INPADRS, eax
movzx ecx, bh	movzx ecx, bh
#if 1
call iocore_inp8	call iocore_inp8
#else
call i286_in
#endif
mov I286_AL, al	mov I286_AL, al
mov i286s.inport, 0	mov I286_INPADRS, 0
GET_NEXTPRE2	GET_NEXTPRE2
ret	ret
}	}
Line 3917 I286 in_ax_data8(void) { // E5: in	Line 3983 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 3935 I286 out_data8_al(void) { // E6: ou	Line 4000 I286 out_data8_al(void) { // E6: ou
GET_NEXTPRE2	GET_NEXTPRE2
pop ecx	pop ecx
mov dl, I286_AL	mov dl, I286_AL
#if 1
jmp iocore_out8	jmp iocore_out8
#else	}
jmp i286_out
#endif
}
}	}

I286 out_data8_ax(void) { // E7: out DATA8, ax	I286 out_data8_ax(void) { // E7: out DATA8, ax
Line 4015 I286 in_al_dx(void) { // EC: in al	Line 4076 I286 in_al_dx(void) { // EC: in al

__asm {	__asm {
I286CLOCK(5)	I286CLOCK(5)
#if 1
movzx ecx, I286_DX	movzx ecx, I286_DX
call iocore_inp8	call iocore_inp8
#else
mov cx, I286_DX
call i286_in
#endif
mov I286_AL, al	mov I286_AL, al
GET_NEXTPRE1	GET_NEXTPRE1
ret	ret
Line 4045 I286 out_dx_al(void) { // EE: out	Line 4101 I286 out_dx_al(void) { // EE: out
__asm {	__asm {
GET_NEXTPRE1	GET_NEXTPRE1
I286CLOCK(3)	I286CLOCK(3)
#if 1
movzx ecx, I286_DX	movzx ecx, I286_DX
mov dl, I286_AL	mov dl, I286_AL
jmp iocore_out8	jmp iocore_out8
#else
mov cx, I286_DX
mov dl, I286_AL
jmp i286_out
#endif
}	}
}	}

Line 4093 I286 _repe(void) { // F3: repe	Line 4143 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 4216 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	jne nextopandexit // fast_intr
jne prefix_exist // 前方分岐ジャンプなので。	cmp pic.ext_irq, 0
noprefix: movzx eax, bl	jne jmp_nextop
call i286op[eax*4]	mov al, pic.pi[0].imr
	mov ah, pic.pi[1].imr
	not ax
	test al, pic.pi[0].irr
	jne nextopandexit
	test ah, 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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