forked from KolibriOS/kolibrios
All exceptions use Interrupt Gate
Better FPU exception handler Code cleanups Correct save_registers for i40 handler (syscall trace) Updated memmap.inc git-svn-id: svn://kolibrios.org@6 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Ivan Poddubny
parent
bc47ee30d7
commit
2e93336e82
@ -1,62 +0,0 @@
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iglobal
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prev_user_of_fpu dd 0x1 ; set to OS
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endg
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label fpu_tss at 0xB080
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label fpu_stack dword at 0xB060
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align 4
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fpu_handler:
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; clear TS flag in CR0 -> for task switching
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clts
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; save FPU context of the previous task
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mov eax,[prev_user_of_fpu]
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shl eax,8
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add eax,0x80000+0x10
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fsave [eax]
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; next task switch save our FPU context
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; now restore context of current task (if exists)
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mov eax,[0x3000]
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mov [prev_user_of_fpu],eax
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shl eax,8
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add eax,0x80000
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cmp [eax+0x7f],byte 0
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je bs7_first_fpu
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frstor [eax+0x10]
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bs7_first_fpu:
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mov [eax+0x7f],byte 1
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; prepare structure in stack for proper IRET
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movzx eax,word [fpu_tss+l.ss-tss_sceleton] ; push ss
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push eax
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mov eax,[fpu_tss+l.esp-tss_sceleton] ; push esp
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push eax
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mov eax,[fpu_tss+l.eflags-tss_sceleton] ; push eflags
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push eax
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movzx eax,word [fpu_tss+l.cs-tss_sceleton] ; push cs
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push eax
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mov eax,[fpu_tss+l.eip-tss_sceleton] ; push eip
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push eax
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; save eax
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push dword [fpu_tss+l.eax-tss_sceleton]
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; restore all segment registers
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mov ax,[fpu_tss+l.es-tss_sceleton]
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mov es,ax
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mov ax,[fpu_tss+l.fs-tss_sceleton]
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mov fs,ax
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mov ax,[fpu_tss+l.gs-tss_sceleton]
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mov gs,ax
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mov ax,[fpu_tss+l.ds-tss_sceleton]
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mov ds,ax
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; restore eax
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pop eax
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iret
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@ -5,23 +5,13 @@ label timer_ticks dword at 0xFDF0
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;; IRQ0 HANDLER (TIMER INTERRUPT) ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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align 32
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irq0:
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cmp [error_interrupt],-1
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je no_error_in_previous_process
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mov edi,[error_interrupt]
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shl edi, 3
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mov [edi+tss0i_l +5], word 01010000b *256 +11101001b
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mov edi,[error_interrupt]
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shl edi,7
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add edi,0x290000
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mov esi,[error_interrupt_entry]
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mov [edi+l.eip-tss_sceleton],esi
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mov [edi+l.eflags-tss_sceleton],dword 0x11002
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mov [0xffff],byte 0
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mov [error_interrupt],-1
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@ -85,13 +75,6 @@ irq0:
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do_not_change_task:
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;mov edx,[0x3000]
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;lea edx,[tss0sys+8*edx]
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;mov [8*0x40+idts+8+0], word 0
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;mov [8*0x40+idts+8+2],dx
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;mov [8*0x40+idts+8+4],word 11100101b*256
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;mov [8*0x40+idts+8+6], word 0
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call _rdtsc
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mov [edi+0x18],eax
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@ -113,6 +96,7 @@ irq0:
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.switch:
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jmp pword [0xB000]
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inc [context_counter] ;noname & halyavin
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jmp irq0
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iglobal
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@ -68,7 +68,6 @@ gdte:
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; <IP 05.02.2005>
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idtreg:
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dw 8*0x41-1
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dd idts+8
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@ -76,20 +75,8 @@ idtreg:
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label idts at 0xB100-8
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;idte = idts + 8 + 0x60
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; </IP> ; old code below:
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;align 32
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;idts:
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; dw idte-$-1
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; dd idts+8
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; dw 0
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; times 0x62 dd 0,0
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;idte:
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build_process_gdt_tss_pointer:
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mov ecx,tss_data
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@ -177,44 +164,32 @@ build_interrupt_table:
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mov edi,0
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mov edx,tss0i
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setidtl2:
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@@:
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mov [edi+idts+ 8 +0], word 0
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mov [edi+idts+ 8 +2], dx
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mov [edi+idts+ 8 +4], word 10000101b*256 ; task gate DPL=0
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; cmp edi,0x40*8
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; jne no_sw_int
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; mov [edi+idts+ 8 +4], word 11100101b*256 ; task gate DPL=3
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; no_sw_int:
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mov [edi+idts+ 8 +6], word 0
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add edx,8
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add edi,8
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cmp edi,8*0x40 ;0x60
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jbe setidtl2 ;jb
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cmp edi,8*0x40
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jb @b
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; <Ivan Poddubny 06.02.2005>
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; THIS CODE WON'T WORK ;-(
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; because each process's 0-level stack points to the same area
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; and if task switch occurs and another process is being interrupted
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; a stack overflow happens
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; The only way to solve that problem is to disable interrupts
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; while 0x40-handler is working
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; Then we have to make all entries in the IDT INTERRUPT gates, not TASK
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; mov edi, idts+8
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; mov esi, sys_int
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; mov ecx, 32
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; @@:
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; mov eax, [esi]
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; mov [edi], ax ; lower part of offset
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; mov [edi+2], word os_code ; segment selector
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; shr eax, 16
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; mov [edi+4], word 10001110b shl 8 ; interrupt descriptor
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; mov [edi+6], ax
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; add esi, 4
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; add edi, 8
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; dec ecx
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; jnz @b
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; </Ivan Poddubny>
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; Exceptions
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mov edi, idts+8
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mov esi, sys_int
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mov ecx, 32
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@@:
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mov eax, [esi]
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mov [edi], ax ; lower part of offset
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mov [edi+2], word os_code ; segment selector
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shr eax, 16
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mov [edi+4], word 10001110b shl 8 ; interrupt descriptor
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mov [edi+6], ax
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add esi, 4
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add edi, 8
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dec ecx
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jnz @b
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ret
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@ -230,32 +205,6 @@ build_syscall_interrupt_table:
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ret
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align 4
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i38:
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; load data selectors
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pushfd
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push ds es
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push eax
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mov ax, os_data
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mov ds, ax
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mov es, ax
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pop eax
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pushad
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push edi
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mov edi, eax
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mov eax, ebx
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mov ebx, ecx
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mov ecx, edx
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mov esi, [esp]
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and edi, 0xFF
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call dword [servetable+edi*4]
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add esp, 4
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popad
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pop es ds
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popfd
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iret
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iglobal
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sys_int:
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@ -311,7 +260,9 @@ uglobal
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endg
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s0:
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cli
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0x0
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mov [error_interrupt_entry],dword s0
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@ -325,7 +276,9 @@ s0:
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s1:
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cli
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0x1
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mov [error_interrupt_entry],dword s1
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@ -338,7 +291,9 @@ s1:
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jmp change_task
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s2:
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cli
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0x2
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mov [error_interrupt_entry],dword s2
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@ -351,7 +306,9 @@ s2:
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jmp change_task
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s3:
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cli
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0x3
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mov [error_interrupt_entry],dword s3
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@ -364,7 +321,9 @@ s3:
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jmp change_task
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s4:
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cli
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0x4
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mov [error_interrupt_entry],dword s4
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@ -377,7 +336,9 @@ s4:
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jmp change_task
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s5:
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cli
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0x5
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mov [error_interrupt_entry],dword s5
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@ -390,7 +351,9 @@ s5:
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jmp change_task
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s6:
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cli
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0x6
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mov [error_interrupt_entry],dword s6
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@ -409,54 +372,45 @@ s6:
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align 4
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s7:
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; <IP 05.02.2004>
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cli
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; </IP>
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mov edi, 7*8
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mov [edi+gdts+ tss0i +5], word 01010000b *256 +11101001b
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clts
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mov edi,[0x3000]
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shl edi, 3
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mov [edi+gdts+ tss0 +5], word 01010000b *256 +11101001b
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push eax
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push ds es
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mov ax, os_data
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mov ds, ax
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mov es, ax
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; save a copy of current task's TSS to fpu_tss
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mov esi,[0x3000]
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imul esi,tss_step
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add esi,tss_data
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mov edi,fpu_tss
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mov ecx,120/4
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cld
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rep movsd
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mov eax, [prev_user_of_fpu]
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shl eax, 8
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add eax, 0x80000 + 0x10
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fsave [eax]
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; get base address of our TSS and...
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mov esi,[0x3000]
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imul esi,tss_step
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add esi,tss_data
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mov eax, [0x3000]
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mov [prev_user_of_fpu], eax
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shl eax, 8
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add eax, 0x80000
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cmp [eax + 0x7f], byte 0
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je @f
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frstor [eax+0x10]
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@@:
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mov [eax + 0x7f], byte 1
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; ...init segments, stack, eip, flags
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mov word [esi+l.cs-tss_sceleton],int_code
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mov word [esi+l.ss-tss_sceleton],int_data
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mov word [esi+l.ds-tss_sceleton],int_data
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mov word [esi+l.es-tss_sceleton],int_data
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mov word [esi+l.fs-tss_sceleton],int_data
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mov word [esi+l.gs-tss_sceleton],int_data
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mov dword [esi+l.esp-tss_sceleton],fpu_stack+4*8
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mov dword [esi+l.eip-tss_sceleton],fpu_handler
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mov dword [esi+l.eflags-tss_sceleton],0x11002
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pop es ds
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pop eax
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; then execute this task
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mov ebx, [0x3000]
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shl ebx,3
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add ebx, tss0 ;t
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mov [0xB004], bx
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iret
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jmp pword [0xB000]
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iglobal
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prev_user_of_fpu dd 1
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endg
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jmp s7
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s8:
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cli
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add esp, 4 ; zero on the stack!
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0x8
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mov [error_interrupt_entry],dword s8
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@ -469,7 +423,9 @@ s8:
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jmp change_task
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s9:
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cli
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0x9
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mov [error_interrupt_entry],dword s9
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@ -481,8 +437,12 @@ s9:
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jmp change_task
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; Invalid TSS
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sa:
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cli
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add esp, 4 ; error code
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0xa
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mov [error_interrupt_entry],dword sa
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@ -494,8 +454,12 @@ sa:
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jmp change_task
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; Segment not present
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sb:
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cli
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add esp, 4
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0xb
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mov [error_interrupt_entry],dword sb
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@ -507,8 +471,12 @@ sb:
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jmp change_task
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; Stack fault exception
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sc:
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cli
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add esp, 4
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0xc
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mov [error_interrupt_entry],dword sc
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@ -520,8 +488,12 @@ sc:
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jmp change_task
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; General Protection Fault
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sd:
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cli
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add esp, 4
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0xd
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mov [error_interrupt_entry],dword sd
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@ -533,8 +505,12 @@ sd:
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jmp change_task
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; Page-Fault Exception
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se:
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cli
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add esp, 4
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0xe
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mov [error_interrupt_entry],dword se
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@ -546,8 +522,11 @@ se:
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jmp change_task
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; ??
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sf:
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cli
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0xf
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mov [error_interrupt_entry],dword sf
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@ -559,8 +538,11 @@ sf:
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jmp change_task
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; x87 FPU Floating-Point Error
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s10:
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cli
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0x10
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mov [error_interrupt_entry],dword s10
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@ -572,8 +554,12 @@ s10:
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jmp change_task
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; Alignment Check Exception
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s11:
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cli
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add esp, 4
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mov ax, os_data
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mov ds, ax
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mov es, ax
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mov [error_interrupt],0x11
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mov [error_interrupt_entry],dword s11
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@ -585,6 +571,9 @@ s11:
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jmp change_task
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writehex:
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pusha
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@ -679,46 +668,9 @@ show_error_parameters:
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jmp .out_eip
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irq5:
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call restore_caller
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mov dx,word [sb16]
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add dx,0xe
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in al,dx
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; mov byte [SB16_Status],0
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mov [check_idle_semaphore],5
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mov al,0x20
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out 0x20,al
|
||||
|
||||
call return_to_caller
|
||||
|
||||
jmp irq5
|
||||
|
||||
irqD:
|
||||
|
||||
call restore_caller
|
||||
|
||||
mov dx,0xf0
|
||||
mov al,0
|
||||
out dx,al
|
||||
|
||||
mov dx,0xa0
|
||||
mov al,0x20
|
||||
out dx,al
|
||||
mov dx,0x20
|
||||
out dx,al
|
||||
|
||||
mov ds,cx
|
||||
mov es,cx
|
||||
mov fs,cx
|
||||
|
||||
call return_to_caller
|
||||
|
||||
jmp irqD
|
||||
; irq1 -> hid/keyboard.inc
|
||||
|
||||
p_irq2:
|
||||
|
||||
@ -843,16 +795,23 @@ p_irq12:
|
||||
|
||||
jmp p_irq12
|
||||
|
||||
p_irq13:
|
||||
|
||||
irqD:
|
||||
call restore_caller
|
||||
|
||||
mov edi,13
|
||||
call irqhandler
|
||||
mov dx,0xf0
|
||||
mov al,0
|
||||
out dx,al
|
||||
|
||||
mov dx,0xa0
|
||||
mov al,0x20
|
||||
out dx,al
|
||||
mov dx,0x20
|
||||
out dx,al
|
||||
|
||||
call return_to_caller
|
||||
|
||||
jmp p_irq13
|
||||
jmp irqD
|
||||
|
||||
|
||||
p_irq14:
|
||||
|
||||
@ -977,11 +936,9 @@ irqhandler:
|
||||
ret
|
||||
|
||||
|
||||
; this code should never get control!
|
||||
; applications can use only 0x40 interrupt
|
||||
; simply return control to interrupted process
|
||||
unknown_interrupt:
|
||||
@@: call change_task
|
||||
jmp @b
|
||||
iret
|
||||
|
||||
|
||||
|
||||
@ -1020,21 +977,6 @@ clear_application_table_status:
|
||||
|
||||
ret
|
||||
|
||||
uglobal
|
||||
old_code_0 dd 0x0
|
||||
old_code_1 dd 0x0
|
||||
|
||||
;
|
||||
|
||||
new_code_0 dd 0x0
|
||||
new_code_1 dd 0x0
|
||||
|
||||
new_data_0 dd 0x0
|
||||
new_data_1 dd 0x0
|
||||
|
||||
new_pos dd 0x0
|
||||
new_amount dd 0x0
|
||||
endg
|
||||
|
||||
|
||||
sys_resize_app_memory:
|
||||
@ -1121,10 +1063,7 @@ start_application_hd:
|
||||
jmp new_start_application_hd
|
||||
|
||||
uglobal
|
||||
;threadstring dd 0x0
|
||||
new_process_place dd 0x0
|
||||
;check_processes dd 0x0
|
||||
;dec3004 db 0x0
|
||||
app_start dd 0x0
|
||||
app_i_end dd 0x0
|
||||
app_mem dd 0x0
|
||||
@ -1132,8 +1071,6 @@ uglobal
|
||||
app_i_param dd 0x0
|
||||
app_i_icon dd 0x0
|
||||
app_mem_pos dd 0x0
|
||||
;thread_create dd 0x0
|
||||
;gdt_place dd 0x0
|
||||
appl_path dd 0x0
|
||||
appl_path_size dd 0x0
|
||||
endg
|
||||
@ -1186,8 +1123,6 @@ terminate: ; terminate application
|
||||
mov eax,esi
|
||||
call dispose_app_cr3_table
|
||||
|
||||
mov [first_gdt_search],0x2 ; start gdt search from beginning
|
||||
|
||||
cmp [prev_user_of_fpu],esi ; if user fpu last -> fpu user = 1
|
||||
jne fpu_ok_1
|
||||
mov [prev_user_of_fpu],1
|
||||
@ -1196,18 +1131,6 @@ terminate: ; terminate application
|
||||
mov [0xf400],byte 0 ; empty keyboard buffer
|
||||
mov [0xf500],byte 0 ; empty button buffer
|
||||
|
||||
; mov ecx,esi ; clear memory reserv.
|
||||
; shl ecx,3
|
||||
; mov [ecx+gdts+ app_code-3 +0],dword 0
|
||||
; mov [ecx+gdts+ app_code-3 +4],dword 0
|
||||
; mov [ecx+gdts+ app_data-3 +0],dword 0
|
||||
; mov [ecx+gdts+ app_data-3 +4],dword 0
|
||||
|
||||
mov edi, esi
|
||||
|
||||
|
||||
mov [usedi40+eax],byte 0
|
||||
|
||||
|
||||
mov ecx,esi ; remove buttons
|
||||
bnewba2:
|
||||
@ -1398,8 +1321,7 @@ terminate: ; terminate application
|
||||
|
||||
popa
|
||||
mov edi,esi ; do not run this process slot
|
||||
shl edi, 5 ;imul edi,0x20
|
||||
; add edi,0x3000
|
||||
shl edi, 5
|
||||
mov [edi+0x300A],byte 9
|
||||
; call systest
|
||||
sti ; .. and life goes on
|
||||
@ -1443,12 +1365,6 @@ endg
|
||||
|
||||
|
||||
build_scheduler:
|
||||
; { Ivan 06.03.2005
|
||||
mov edi, usedi40
|
||||
mov ecx, 256/4
|
||||
xor eax, eax
|
||||
rep stosd
|
||||
; } Ivan 06.03.2005
|
||||
|
||||
mov esi,boot_sched_1
|
||||
call boot_log
|
||||
|
||||
@ -4,8 +4,9 @@
|
||||
;; ;;
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
uglobal
|
||||
task_tss rd 1
|
||||
pushed_regs rd 1
|
||||
endg
|
||||
|
||||
align 32
|
||||
i40:
|
||||
pushad
|
||||
@ -14,45 +15,36 @@ i40:
|
||||
mov ax,word os_data
|
||||
mov ds,ax
|
||||
mov es,ax
|
||||
mov [task_tss],esp
|
||||
add dword [task_tss],4
|
||||
mov [pushed_regs],esp
|
||||
add dword [pushed_regs],4
|
||||
cli
|
||||
|
||||
mov edi,[0x3000]
|
||||
mov eax,edi
|
||||
shl edi, 3
|
||||
;clear busy flag in application's TSS
|
||||
mov [edi+gdts+ tss0 +5], word 01010000b *256 +11101001b
|
||||
|
||||
|
||||
shl edi,5
|
||||
mov eax, [0x3000]
|
||||
mov edi, eax
|
||||
shl edi, 8
|
||||
mov [edi+0x80000+0xB0],eax ; used i40 handler
|
||||
|
||||
; for syscall trace function
|
||||
call save_registers
|
||||
|
||||
; mov esi, [0x3000]
|
||||
; imul esi, tss_step
|
||||
; add esi, tss_data
|
||||
mov esi,[task_tss]
|
||||
; sub esi,0x28
|
||||
; esi holds address of TSS of interupted program
|
||||
mov esi,[pushed_regs]
|
||||
|
||||
; load first 3 registers
|
||||
mov eax,[esi+28];+l.eax-tss_sceleton]
|
||||
mov ebx,[esi+16];l.ebx-tss_sceleton]
|
||||
mov ecx,[esi+24];l.ecx-tss_sceleton]
|
||||
mov eax,[esi+28]
|
||||
mov ebx,[esi+16]
|
||||
mov ecx,[esi+24]
|
||||
|
||||
; save current registers
|
||||
; stack may be modified by a system function to return some value to caller!
|
||||
pushad
|
||||
|
||||
; load all registers from TSS of the application, in crossed order (why?)
|
||||
mov edi,[esi+28];l.eax-tss_sceleton]
|
||||
mov eax,[esi+16];l.ebx-tss_sceleton]
|
||||
mov ebx,[esi+24];l.ecx-tss_sceleton]
|
||||
mov ecx,[esi+20];l.edx-tss_sceleton]
|
||||
mov edx,[esi+4];l.esi-tss_sceleton]
|
||||
mov esi,[esi+0];l.edi-tss_sceleton]
|
||||
mov edi,[esi+28]
|
||||
mov eax,[esi+16]
|
||||
mov ebx,[esi+24]
|
||||
mov ecx,[esi+20]
|
||||
mov edx,[esi+4]
|
||||
mov esi,[esi+0]
|
||||
|
||||
; enable interupts - a task switch or an IRQ _CAN_ interrupt i40 handler
|
||||
sti
|
||||
@ -66,16 +58,10 @@ i40:
|
||||
; return saved and probably even changed regs
|
||||
popad
|
||||
|
||||
; <Ivan 05.03.2005> esi already loaded - look above "pusha"
|
||||
;mov esi,[0x3000]
|
||||
;imul esi,tss_step
|
||||
;add esi,tss_data
|
||||
; </Ivan 05.03.2005>
|
||||
|
||||
; modify 3 program's registers (in its TSS)
|
||||
mov [esi+28],eax;[esi+l.eax-tss_sceleton], eax
|
||||
mov [esi+16],ebx;[esi+l.ebx-tss_sceleton], ebx
|
||||
mov [esi+24],ecx;[esi+l.ecx-tss_sceleton], ecx
|
||||
mov [esi+28],eax
|
||||
mov [esi+16],ebx
|
||||
mov [esi+24],ecx
|
||||
|
||||
xor eax, eax
|
||||
mov edi, [0x3000] ; no syscall interrupt in use anymore
|
||||
@ -89,36 +75,11 @@ i40:
|
||||
popad
|
||||
iretd
|
||||
|
||||
jmp i40
|
||||
|
||||
label reg1 dword at 0x6000
|
||||
label reg2 dword at 0x6400
|
||||
label usedi40 byte at 0x6800
|
||||
|
||||
uglobal
|
||||
schd dd 0x0
|
||||
endg
|
||||
|
||||
align 4
|
||||
save_registers:
|
||||
|
||||
mov esi,[0x3000]
|
||||
imul esi,tss_step
|
||||
add esi,tss_data
|
||||
|
||||
mov eax,[esi+l.eax-tss_sceleton]
|
||||
mov ebx,[esi+l.ebx-tss_sceleton]
|
||||
mov ecx,[esi+l.ecx-tss_sceleton]
|
||||
mov edx,[esi+l.edx-tss_sceleton]
|
||||
mov edi,[esi+l.edi-tss_sceleton]
|
||||
mov ebp,[esi+l.ebp-tss_sceleton]
|
||||
|
||||
mov esi,[esi+l.esi-tss_sceleton]
|
||||
|
||||
push eax ecx esi edi
|
||||
mov esi,[0x3010]
|
||||
mov eax,[esi+0x4]
|
||||
mov esi,esp
|
||||
mov esi, [0x3010]
|
||||
mov eax, [esi+0x4] ; load PID
|
||||
mov esi, [pushed_regs]
|
||||
inc [save_syscall_count]
|
||||
mov edi,[save_syscall_count]
|
||||
and edi,0xF
|
||||
@ -128,7 +89,6 @@ save_registers:
|
||||
mov ecx,32 / 4
|
||||
cld
|
||||
rep movsd
|
||||
pop edi esi ecx eax
|
||||
ret
|
||||
|
||||
uglobal
|
||||
|
||||
@ -34,7 +34,6 @@ ends fix } struct_helper name@struct
|
||||
include "core/sync.inc"
|
||||
include "core/sys32.inc" ; process management
|
||||
include "core/sched.inc" ; process scheduling
|
||||
include "core/fpu.inc" ; FPU handler
|
||||
include "core/syscall.inc" ; system call
|
||||
include "core/mem.inc" ; high-level memory management
|
||||
include "core/newproce.inc" ;new process management
|
||||
|
||||
@ -51,12 +51,10 @@
|
||||
;
|
||||
;!!!
|
||||
; 5000 -> 5FFF save_syscall_data - syscall trace
|
||||
; 6000 -> 63FF reg1 array - for i40 (first parts of saved TSS descriptor)
|
||||
; 6400 -> 67FF reg2 array - same thing, second part
|
||||
; 6800 -> 68FF used i40 (1 if used, 0 if free), first element not used
|
||||
; 6000 -> 68FF free
|
||||
; 6900 -> 6EFF saved picture under mouse pointer
|
||||
;
|
||||
; 6F00 -> 7FFF i38 stack (4,25Kb)
|
||||
; 6F00 -> 7FFF free
|
||||
;
|
||||
; 8000 -> A3FF used FLOPPY driver
|
||||
;
|
||||
@ -65,11 +63,10 @@
|
||||
; B000 -> B005 jump address for irq0 (task switch)
|
||||
; B008 -> B00B count of ticks remaining to updating CPU usage info
|
||||
;
|
||||
; B060 -> B07F fpu error handler's stack
|
||||
; B080 -> B0FF fpu_tss -> temporary TSS for FPU context switching
|
||||
; B060 -> B0FF free
|
||||
|
||||
; B100 -> B2FF IDT
|
||||
; B300 -> BAFF tasknum array - for i40 handler
|
||||
; BB00 -> BEFF free
|
||||
; B300 -> BEFF free
|
||||
;!!!
|
||||
|
||||
; BF00 -> BFFF bytes, 1 if process running/memory in use
|
||||
@ -137,9 +134,9 @@
|
||||
; 30000 -> 36FFF basic text font II
|
||||
; 37000 -> 3BFFF basic text font I
|
||||
; 40000 -> 4FFFF data of retrieved disks and partitions (Mario79)
|
||||
; 50000 -> 500FF TSS of scheduler
|
||||
; 50000 -> 500FF free
|
||||
; 51000 -> 54000 esp0,esp1,esp2
|
||||
; 5F000 -> 5FFFF schedulers stack
|
||||
; 5F000 -> 5FFFF free
|
||||
; 60000 -> 7FFFF paging tables
|
||||
; 80000 -> 8FFFF additional app info, in 256 byte steps - 256 entries
|
||||
;
|
||||
@ -171,7 +168,7 @@
|
||||
; 284000 -> 28FFFF free
|
||||
;
|
||||
; 290000 -> 297FFF TSS's of interrupts
|
||||
; 298000 -> 29FFFF TSS's of SYSTEM interrupts - 256 entries
|
||||
; 298000 -> 29FFFF free
|
||||
; 2A0000 -> 2B00ff wav device data
|
||||
; 2C0000 -> 2C3fff button info
|
||||
;
|
||||
@ -213,7 +210,6 @@
|
||||
;
|
||||
; 800000 -> BFFFFF mapped to LFB
|
||||
;
|
||||
; C00000 -> DFFFFF * Application information
|
||||
;
|
||||
; C00000 -> C01FFF draw_data - 256 entries
|
||||
;
|
||||
@ -227,8 +223,8 @@
|
||||
; - system interrupt stacks
|
||||
; - 256 entries * 4096 step
|
||||
;
|
||||
; D20000 -> DA8000 TSS and IO map for (2048*8)=16384 ports
|
||||
; (128+2048)*256 = 557956 = 0x88000
|
||||
; D20000 -> F28000 TSS and IO map for (8192*8)=65536 ports
|
||||
; (128+8192)*256 = 557956 = 0x88000
|
||||
;
|
||||
; 1000000 -> 3FFFFFF for applications
|
||||
;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user