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small update 46 system function(no tested!)

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git-svn-id: svn://kolibrios.org@9742 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Doczom 2022-03-18 04:09:59 +00:00
parent 6c66c1519e
commit 8708293b8f
2 changed files with 24 additions and 39 deletions
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7
kernel/trunk/core/sys32.inc
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@ -693,6 +693,13 @@ destroy_thread:
jmp rmpr9
rmpr4:
push eax edx ebp ;TODO: check using register ebp in next code
mov eax, [edi + 4]
mov edx, [edi + 8]
xor ebp, ebp
inc ebp
call new_port_access_disable
pop ebp edx eax
mov ecx, 256
sub ecx, esi

56
kernel/trunk/kernel.asm
View File

@ -3480,6 +3480,11 @@ align 4
ret
;-----------------------------------------------------------------------------
; in: eax = port
; ebp = subfunction
; 0 - set access
; 1 - clear access
; out: not return value
align 4
set_io_access_rights:
push edi eax
@ -3490,8 +3495,7 @@ set_io_access_rights:
; add edi,eax
; mov ebx,1
; shl ebx,cl
test ebp, ebp
; cmp ebp,0 ; enable access - ebp = 0
test ebp, ebp ; enable access - ebp = 0
jnz .siar1
; not ebx
; and [edi],byte bl
@ -3499,8 +3503,7 @@ set_io_access_rights:
pop eax edi
ret
.siar1:
bts [edi], eax
; or [edi],byte bl ; disable access - ebp = 1
bts [edi], eax ; disable access - ebp = 1
pop eax edi
ret
@ -3526,12 +3529,6 @@ r_f_port_area:
test ebx, ebx
jnz free_port_area
; je r_port_area
; jmp free_port_area
; r_port_area:
; pushad
cmp ecx, edx ; beginning > end ?
ja rpal1
@ -3550,43 +3547,32 @@ r_f_port_area:
ja rpal4
cmp edx, [ebx+4]
jae rpal1
; jb rpal4
; jmp rpal1
rpal4:
dec eax
jnz rpal3
jmp rpal2
rpal1:
; popad
; mov eax,1
xor eax, eax
inc eax
ret
rpal2:
; popad
; enable port access at port IO map
cli
pushad ; start enable io map
cmp edx, 65536;16384
jae no_unmask_io; jge
mov eax, ecx
; push ebp
xor ebp, ebp ; enable - eax = port
cli
new_port_access:
; pushad
call set_io_access_rights
; popad
inc eax
cmp eax, edx
jbe new_port_access
; pop ebp
no_unmask_io:
popad ; end enable io map
sti
popad ; end enable io map
mov eax, [RESERVED_PORTS]
add eax, 1
inc eax
mov [RESERVED_PORTS], eax
shl eax, 4
add eax, RESERVED_PORTS
@ -3601,7 +3587,6 @@ no_unmask_io:
free_port_area:
; pushad
mov eax, [RESERVED_PORTS]; no reserved areas ?
test eax, eax
jz frpal2
@ -3622,7 +3607,6 @@ free_port_area:
dec eax
jnz frpal3
frpal2:
; popad
inc eax
ret
frpal1:
@ -3636,27 +3620,21 @@ free_port_area:
rep movsb
dec dword [RESERVED_PORTS]
;popad
;disable port access at port IO map
; pushad ; start disable io map
; start disable io map
pop eax ;start port
cmp edx, 65536;16384
jge no_mask_io
;cmp edx, 65536
;jge no_mask_io
; mov eax,ecx
xor ebp, ebp
inc ebp
new_port_access_disable:
; pushad
; mov ebp,1 ; disable - eax = port
new_port_access_disable: ; disable - eax = port
call set_io_access_rights
; popad
inc eax
cmp eax, edx
jbe new_port_access_disable
no_mask_io:
; popad ; end disable io map
no_mask_io: ; end disable io map
xor eax, eax
ret
;-----------------------------------------------------------------------------