BlueGreycalmElegant

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Compare Revisions

• This comparison shows the changes necessary to convert path

  → /kernel/trunk/core/v86.inc @ 2383

  → /kernel/trunk/core/v86.inc @ 2384

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Regard whitespace Rev 2383 → Rev 2384

/kernel/trunk/core/v86.inc
12,21 → 12,16
DEBUG_SHOW_IO = 0
struc V86_machine
{
struct V86_machine
; page directory
.pagedir dd ?
pagedir dd ?
; translation table: V86 address -> flat linear address
.pages dd ?
pages dd ?
; mutex to protect all data from writing by multiple threads at one time
.mutex dd ?
mutex dd ?
; i/o permission map
.iopm dd ?
.size = $
}
virtual at 0
V86_machine V86_machine
end virtual
iopm dd ?
ends
; Create V86 machine
; in: nothing
35,7 → 30,7
; destroys: ebx, ecx, edx (due to malloc)
v86_create:
; allocate V86_machine structure
mov eax, V86_machine.size
mov eax, sizeof.V86_machine
call malloc
test eax, eax
jz .fail
245,31 → 240,26
.ret:
ret
struc v86_regs
{
struct v86_regs
; don't change the order, it is important
.edi dd ?
.esi dd ?
.ebp dd ?
edi dd ?
esi dd ?
ebp dd ?
dd ? ; ignored
.ebx dd ?
.edx dd ?
.ecx dd ?
.eax dd ?
.eip dd ?
.cs dd ?
.eflags dd ? ; VM flag must be set!
.esp dd ?
.ss dd ?
.es dd ?
.ds dd ?
.fs dd ?
.gs dd ?
.size = $
}
virtual at 0
v86_regs v86_regs
end virtual
ebx dd ?
edx dd ?
ecx dd ?
eax dd ?
eip dd ?
cs dd ?
eflags dd ? ; VM flag must be set!
esp dd ?
ss dd ?
es dd ?
ds dd ?
fs dd ?
gs dd ?
ends
; Run V86 machine
; in: ebx -> registers for V86 (two structures: in and out)
319,10 → 309,10
; sti
mov eax, esi
sub esp, v86_regs.size
sub esp, sizeof.v86_regs
mov esi, ebx
mov edi, esp
mov ecx, v86_regs.size/4
mov ecx, sizeof.v86_regs/4
rep movsd
cmp edx, -1
372,7 → 362,7
xor eax, eax
mov dr6, eax
@@:
mov eax, [esp+v86_regs.size+10h+18h]
mov eax, [esp+sizeof.v86_regs+10h+18h]
cmp word [esp+v86_regs.eip], ax
jnz @f
shr eax, 16
444,7 → 434,7
sub eax, 6
add edx, eax
mov eax, edx
mov esi, [esp+4+v86_regs.size+10h+4]
mov esi, [esp+4+sizeof.v86_regs+10h+4]
call v86_get_lin_addr
cmp eax, 0x1000
jae @f
492,7 → 482,7
movzx eax, word [esp+v86_regs.esp]
add edx, eax
mov eax, edx
mov esi, [esp+v86_regs.size+10h+4]
mov esi, [esp+sizeof.v86_regs+10h+4]
call v86_get_lin_addr
cmp eax, 0x1000
jae @f
528,7 → 518,7
movzx eax, ax
add edx, eax
mov eax, edx
mov esi, [esp+v86_regs.size+10h+4]
mov esi, [esp+sizeof.v86_regs+10h+4]
call v86_get_lin_addr
cmp eax, 0x1000
jae @f
560,7 → 550,7
sub eax, 4
add edx, eax
mov eax, edx
mov esi, [esp+v86_regs.size+10h+4]
mov esi, [esp+sizeof.v86_regs+10h+4]
call v86_get_lin_addr
cmp eax, 0x1000
jae @f
591,7 → 581,7
movzx eax, word [esp+v86_regs.esp]
add edx, eax
mov eax, edx
mov esi, [esp+v86_regs.size+10h+4]
mov esi, [esp+sizeof.v86_regs+10h+4]
call v86_get_lin_addr
cmp eax, 0x1000
jae @f
622,7 → 612,7
movzx eax, word [esp+v86_regs.esp]
add edx, eax
mov eax, edx
mov esi, [esp+v86_regs.size+10h+4]
mov esi, [esp+sizeof.v86_regs+10h+4]
call v86_get_lin_addr
cmp eax, 0x1000
jae @f
748,7 → 738,7
shl edx, 4
add edx, [esp+32]
@@:
mov esi, [esp+v86_regs.size+10h+4]
mov esi, [esp+sizeof.v86_regs+10h+4]
mov eax, edx
call v86_get_lin_addr
cmp eax, 0x1000
773,10 → 763,10
xor eax, eax
.exit:
mov [esp+v86_regs.size+10h+1Ch], eax
mov [esp+v86_regs.size+10h+18h], ebx
mov [esp+sizeof.v86_regs+10h+1Ch], eax
mov [esp+sizeof.v86_regs+10h+18h], ebx
mov edx, [esp+v86_regs.size+10h+14h]
mov edx, [esp+sizeof.v86_regs+10h+14h]
cmp edx, -1
jz @f
dec [v86_irqhooks+edx*8+4]
785,9 → 775,9
@@:
mov esi, esp
mov edi, [esi+v86_regs.size+10h+10h]
add edi, v86_regs.size
mov ecx, v86_regs.size/4
mov edi, [esi+sizeof.v86_regs+10h+10h]
add edi, sizeof.v86_regs
mov ecx, sizeof.v86_regs/4
rep movsd
mov esp, esi
874,12 → 864,12
jnz .cont
push ecx
mov ecx, [ebx+APPDATA.saved_esp0]
cmp word [ecx-v86_regs.size+v86_regs.esp], 6
cmp word [ecx-sizeof.v86_regs+v86_regs.esp], 6
jb .cont2
movzx edx, word [ecx-v86_regs.size+v86_regs.ss]
movzx edx, word [ecx-sizeof.v86_regs+v86_regs.ss]
shl edx, 4
push eax
movzx eax, word [ecx-v86_regs.size+v86_regs.esp]
movzx eax, word [ecx-sizeof.v86_regs+v86_regs.esp]
sub eax, 6
add edx, eax
mov eax, edx
905,12 → 895,12
iretd
.found:
mov cr3, eax
sub word [esi-v86_regs.size+v86_regs.esp], 6
mov ecx, [esi-v86_regs.size+v86_regs.eip]
sub word [esi-sizeof.v86_regs+v86_regs.esp], 6
mov ecx, [esi-sizeof.v86_regs+v86_regs.eip]
mov word [edx], cx
mov ecx, [esi-v86_regs.size+v86_regs.cs]
mov ecx, [esi-sizeof.v86_regs+v86_regs.cs]
mov word [edx+2], cx
mov ecx, [esi-v86_regs.size+v86_regs.eflags]
mov ecx, [esi-sizeof.v86_regs+v86_regs.eflags]
mov word [edx+4], cx
lea eax, [edi+8]
cmp al, 10h
918,10 → 908,10
add al, 60h
@@:
mov cx, [eax*4]
mov word [esi-v86_regs.size+v86_regs.eip], cx
mov word [esi-sizeof.v86_regs+v86_regs.eip], cx
mov cx, [eax*4+2]
mov word [esi-v86_regs.size+v86_regs.cs], cx
and byte [esi-v86_regs.size+v86_regs.eflags+1], not 3
mov word [esi-sizeof.v86_regs+v86_regs.cs], cx
and byte [esi-sizeof.v86_regs+v86_regs.eflags+1], not 3
call update_counters
lea edi, [ebx + 0x100000000 - SLOT_BASE]
shr edi, 3