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dynamic stack with fpu state area

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git-svn-id: svn://kolibrios.org@357 a494cfbc-eb01-0410-851d-a64ba20cac60
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Sergey Semyonov (Serge)
2007-02-17 10:09:23 +00:00
parent 45d720c0c7
commit ee29610808
10 changed files with 212 additions and 249 deletions
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75
kernel/trunk/kernel.asm
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@@ -356,32 +356,6 @@ B32:
mov [0xe024],dword Vesa20_getpixel32
no_mode_0x12:
; MEMORY MODEL
call mem_test
mov [MEM_AMOUNT], eax
mov [pg_data.mem_amount], eax
mov [pg_data.kernel_max], eax
shr eax, 12
mov edx, eax
mov [pg_data.pages_count], eax
mov [pg_data.kernel_pages], eax
shr eax, 3
mov [pg_data.pagemap_size], eax
shr edx, 10
cmp edx, 3
ja @f
inc edx ;at least 4Mb for kernel heap
@@:
mov [pg_data.kernel_tables], edx
; ENABLE PAGING
call test_cpu
; btr [cpu_caps], CAPS_SSE ;test: dont't use sse code
; btr [cpu_caps], CAPS_SSE2 ;test: don't use sse2
@@ -393,9 +367,12 @@ B32:
; btr [cpu_caps], CAPS_MTRR ;test: don't use MTRR
bts [cpu_caps], CAPS_TSC ;force use rdtsc
call init_memEx
; MEMORY MODEL
call mem_test
call init_mem
call init_page_map
; ENABLE PAGING
mov eax, sys_pgdir
mov cr3, eax
@@ -404,6 +381,8 @@ B32:
mov cr0,eax
call init_kernel_heap
stdcall kernel_alloc, 0x2000
mov [os_stack], eax
call init_LFB
call init_mtrr
call init_fpu
@@ -580,41 +559,35 @@ include 'vmodeld.inc'
mov esi,boot_setostask
call boot_log
mov eax, [fpu_data]
mov eax, fpu_data
mov dword [0x80000+APPDATA.fpu_state], eax
mov dword [0x80000+APPDATA.fpu_handler], 0
mov dword [0x80000+APPDATA.sse_handler], 0
; name for OS/IDLE process
mov dword [0x80000+256+APPDATA.app_name], dword 'OS/I'
mov dword [0x80000+256+APPDATA.app_name+4], dword 'DLE '
mov dword [0x80000+256+APPDATA.app_name], dword 'OS/I'
mov dword [0x80000+256+APPDATA.app_name+4], dword 'DLE '
mov edi, [os_stack]
mov dword [0x80000+256+APPDATA.pl0_stack], edi
add edi, 0x2000-512
mov dword [0x80000+256+APPDATA.fpu_state], edi
mov esi, fpu_data
mov ecx, 512/4
cld
rep movsd
mov dword [0x80000+256+APPDATA.fpu_handler], 0
mov dword [0x80000+256+APPDATA.sse_handler], 0
mov ebx, [def_cursor]
mov dword [0x80000+256+APPDATA.cursor], ebx
mov dword [0x80000+256+APPDATA.fpu_handler], 0
mov dword [0x80000+256+APPDATA.sse_handler], 0
mov ebx, PROC_BASE+256+APP_OBJ_OFFSET
mov dword [0x80000+256+APPDATA.fd_obj], ebx
mov dword [0x80000+256+APPDATA.bk_obj], ebx
;set fpu save area
mov esi, eax
bt [cpu_caps], CAPS_SSE
jnc .no_sse
lea edi, [eax+512]
mov dword [PROC_BASE+256+APPDATA.fpu_state], edi
mov ecx, 512/4
jmp @F
.no_sse:
lea edi, [eax+112]
mov dword [PROC_BASE+256+APPDATA.fpu_state], edi
mov ecx, 112/4
@@:
rep movsd
; task list
mov [0x3020+TASKDATA.wnd_number], 1 ; on screen number
mov [0x3020+TASKDATA.pid], 1 ; process id number
@@ -632,7 +605,9 @@ include 'vmodeld.inc'
mov [edi+TSS._cr3],eax
mov [edi+TSS._eip],osloop
mov [edi+TSS._eflags],dword 0x11202 ; sti and resume
mov [edi+TSS._esp],sysint_stack_data + 4096*2 ; uses slot 1 stack
mov eax, [os_stack]
add eax, 0x2000-512
mov [edi+TSS._esp], eax
mov [edi+TSS._cs],os_code
mov [edi+TSS._ss],os_data
mov [edi+TSS._ds],os_data