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Rev 427 Rev 430
Line 452... Line 452...
452 
set_cr3:
 452 
set_cr3:
Line 453... Line 453...
453 
 
 453 
 
454 
           mov ebx, [current_slot]
 454 
           mov ebx, [current_slot]
455 
           mov [ebx+APPDATA.dir_table], eax
 455 
           mov [ebx+APPDATA.dir_table], eax
456 
           mov cr3, eax
 - 
 
457 
 
 - 
 
458 
;           mov esi, [CURRENT_TASK]
 - 
 
459 
;           mov ebx, esi
 - 
 
460 
;           shl esi,8
 - 
 
461 
;           mov [SLOT_BASE+esi+0xB8],eax
 - 
 
462 
;           imul   ebx,tss_step
 - 
 
463 
;           add    ebx,tss_data
 - 
 
464 
;           mov [ebx+28], eax
 - 
 
465 
;           mov cr3, eax
 456 
           mov cr3, eax
Line 466... Line 457...
466 
           ret
 457 
           ret
467 
 
 458 
 
Line 921... Line 912...
921 
           shl eax, 8
 912 
           shl eax, 8
922 
           mov [eax+SLOT_BASE+APPDATA.fpu_state], edi
 913 
           mov [eax+SLOT_BASE+APPDATA.fpu_state], edi
923 
           mov [eax+SLOT_BASE+APPDATA.fpu_handler], 0
 914 
           mov [eax+SLOT_BASE+APPDATA.fpu_handler], 0
924 
           mov [eax+SLOT_BASE+APPDATA.sse_handler], 0
 915 
           mov [eax+SLOT_BASE+APPDATA.sse_handler], 0
Line -... Line 916...
- 
 
 916 
 
- 
 
 917 
;set default io permission map
- 
 
 918 
           mov [eax+SLOT_BASE+APPDATA.io_map],\
- 
 
 919 
                  (tss._io_map_0-OS_BASE+PG_MAP)
- 
 
 920 
           mov [eax+SLOT_BASE+APPDATA.io_map+4],\
- 
 
 921 
                  (tss._io_map_1-OS_BASE+PG_MAP)
925 
 
 922 
 
926 
           mov esi, fpu_data
 923 
           mov esi, fpu_data
927 
           mov ecx, 512/4
 924 
           mov ecx, 512/4
Line 928... Line 925...
928 
           rep movsd
 925 
           rep movsd
Line 1001... Line 998...
1001 
           mov    eax,[ScreenWidth]
 998 
           mov    eax,[ScreenWidth]
1002 
           mov    [ecx+8],eax
 999 
           mov    [ecx+8],eax
1003 
           mov    eax,[ScreenHeight]
 1000 
           mov    eax,[ScreenHeight]
1004 
           mov    [ecx+12],eax
 1001 
           mov    [ecx+12],eax
Line 1005... Line -...
1005 
 
 - 
 
1006 
           mov edi,[slot]
 - 
 
1007 
           imul edi,tss_step
 - 
 
1008 
           add edi,tss_data
 - 
 
1009 
           mov ecx,128/4
 - 
 
1010 
           xor eax, eax
 - 
 
1011 
           cld
 - 
 
1012 
           rep stosd
 - 
 
1013 
;Add IO access table - bit array of permitted ports
 - 
 
1014 
           not eax
 - 
 
1015 
           mov ecx,2048
 - 
 
1016 
           rep stosd                 ; access to 4096*8=65536 ports
 - 
 
1017 
           sub edi, tss_step
 - 
 
1018 
 
 - 
 
1019 
;set cr3 register in TSS of application
 - 
 
1020 
           mov ecx, [slot]
 - 
 
1021 
           shl ecx, 8
 - 
 
1022 
           mov eax,[SLOT_BASE+ecx+APPDATA.dir_table]
 - 
 
1023 
           mov [edi+TSS._cr3],eax
 - 
 
1024 
 
 - 
 
1025 
           mov esi,[params]
 - 
 
1026 
           mov eax, [esi+0x08]       ;app_eip
 - 
 
1027 
           mov [edi+TSS._eip],eax    ;set eip in TSS
 - 
 
1028 
           mov eax, [esi+0x0C]       ;app_esp
 - 
 
1029 
           mov [edi+TSS._esp],eax    ;set stack in TSS
 - 
 
1030 
           mov [edi+TSS._eflags],dword 0x1202
 - 
 
1031 
 
 - 
 
1032 
           mov [edi+TSS._cs],app_code  ;selector of code segment
 - 
 
1033 
           mov [edi+TSS._ss],app_data
 - 
 
1034 
           mov [edi+TSS._ds],app_data
 - 
 
1035 
           mov [edi+TSS._es],app_data
 - 
 
1036 
           mov [edi+TSS._fs],app_data
 - 
 
1037 
           mov [edi+TSS._gs],graph_data ;selector of graphic segment
 - 
 
1038 
           mov [edi+TSS._io],word 128
 - 
 
1039 
           mov [edi+TSS._ss0], os_stack
 - 
 
1040 
           mov ebx, [pl0_stack]
 - 
 
1041 
           add ebx, RING0_STACK_SIZE
 - 
 
1042 
           mov [edi+TSS._esp0],ebx
 - 
 
1043 
 
 - 
 
1044 
           xor eax, eax
 1002 
 
- 
 
 1003 
           mov ebx, [pl0_stack]
1045 
           mov ebx, [pl0_stack]
 1004 
           mov esi,[params]
- 
 
 1005 
           lea ecx, [ebx+REG_EIP]
Line 1046... Line 1006...
1046 
           lea ecx, [ebx+REG_EIP]
 1006 
           xor eax, eax
1047 
 
 1007 
 
1048 
           mov [ebx+REG_RET], dword irq0.return
 1008 
           mov [ebx+REG_RET], dword irq0.return
1049 
           mov [ebx+REG_EDI], eax
 1009 
           mov [ebx+REG_EDI], eax
Line 1069... Line 1029...
1069 
           lea ecx, [ebx+REG_RET]
 1029 
           lea ecx, [ebx+REG_RET]
1070 
           mov ebx, [slot]
 1030 
           mov ebx, [slot]
1071 
           shl ebx, 8
 1031 
           shl ebx, 8
1072 
           mov [ebx+SLOT_BASE+APPDATA.saved_esp], ecx
 1032 
           mov [ebx+SLOT_BASE+APPDATA.saved_esp], ecx
Line 1073... Line -...
1073 
 
 - 
 
1074 
           mov ecx, edi    ;ecx - address of application TSS
 - 
 
1075 
           mov ebx,[slot]
 - 
 
1076 
           shl ebx,3
 - 
 
1077 
;set TSS descriptor
 - 
 
1078 
           mov [ebx+gdts+tss0+0],word tss_step ;limit (size)
 - 
 
1079 
           mov [ebx+gdts+tss0+2],cx  ;part of offset
 - 
 
1080 
           shr ecx,16
 - 
 
1081 
           mov [ebx+gdts+tss0+4],cl  ;part of offset
 - 
 
1082 
           mov [ebx+gdts+tss0+7],ch  ;part of offset
 - 
 
1083 
           mov [ebx+gdts+tss0+5],word 01010000b*256+11101001b ;system flags
 - 
 
1084 
 
 1033 
 
1085 
;flush keyboard and buttons queue
 1034 
;flush keyboard and buttons queue
1086 
           mov    [KEY_COUNT],byte 0
 1035 
           mov    [KEY_COUNT],byte 0
Line 1087... Line 1036...
1087 
           mov    [BTN_COUNT],byte 0
 1036 
           mov    [BTN_COUNT],byte 0
Line 1106... Line 1055...
1106 
           mov  [SLOT_BASE+ebx*8+0xac],eax ;set debugger PID - current
 1055 
           mov  [SLOT_BASE+ebx*8+0xac],eax ;set debugger PID - current
1107 
.no_debug:
 1056 
.no_debug:
1108 
           mov    esi,new_process_running
 1057 
           mov    esi,new_process_running
1109 
           call   sys_msg_board_str     ;output information about succefull startup
 1058 
           call   sys_msg_board_str     ;output information about succefull startup
1110 
           ret
 1059 
           ret
1111 
 
 - 
 
1112 
if 0
 - 
 
1113 
; set stack frame
 - 
 
1114 
 
 - 
 
1115 
           xor eax, eax
 - 
 
1116 
           lea ecx, [ebx+REG_EIP]
 - 
 
1117 
           mov ebx, [pl0_stack]
 - 
 
1118 
           mov esi,[params]
 - 
 
1119 
 
 - 
 
1120 
           mov [ebx+REG_RET], dword irq0.return
 - 
 
1121 
           mov [ebx+REG_EDI], eax
 - 
 
1122 
           mov [ebx+REG_ESI], eax
 - 
 
1123 
           mov [ebx+REG_EBP], eax
 - 
 
1124 
           mov [ebx+REG_ESP], ecx   ;ebx+REG_EIP
 - 
 
1125 
           mov [ebx+REG_EBX], eax
 - 
 
1126 
           mov [ebx+REG_EDX], eax
 - 
 
1127 
           mov [ebx+REG_ECX], eax
 - 
 
1128 
           mov [ebx+REG_EAX], eax
 - 
 
1129 
 
 - 
 
1130 
           mov [ebx+REG_EFL_2], dword 0x1002
 - 
 
1131 
 
 - 
 
1132 
           mov eax, [esi+0x08]       ;app_eip
 - 
 
1133 
           mov [ebx+REG_EIP],  eax   ;app_entry
 - 
 
1134 
           mov [ebx+REG_CS], dword app_code
 - 
 
1135 
           mov [ebx+REG_EFLAGS], dword 0x1202
 - 
 
1136 
 
 - 
 
1137 
           mov eax, [esi+0x0C]       ;app_esp
 - 
 
1138 
           mov [ebx+REG_ESP], eax    ;app_stack
 - 
 
1139 
           mov [ebx+REG_SS], dword app_data
 - 
 
1140 
end if
 - 
 
1141 
 
 - 
 
1142 
endp
 1060 
endp
Line 1143... Line 1061...
1143 
 
 1061