198 lines
2.8 KiB
NASM
198 lines
2.8 KiB
NASM
;
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; CPU USAGE for MenuetOS - Compile with FASM 1.30+
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;
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use32
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org 0x0
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db 'MENUET00' ; 8 byte id
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dd 38 ; required os version
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dd START ; program start
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dd I_END ; program image size
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dd 0x1000 ; reguired amount of memory
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dd 0x1000
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dd 0x00000000 ; reserved=no extended header
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include 'lang.inc'
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include 'macros.inc'
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START:
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call set_variables
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call draw_window
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mov edi,0
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still:
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mov eax,23
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mov ebx,10
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int 0x40
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cmp eax,1
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je red
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cmp eax,2
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je key
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cmp eax,3
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je button
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inc edi
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cmp edi,10
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jb still
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mov edi,0
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call draw_usage
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jmp still
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red:
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call draw_window
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jmp still
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key:
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mov eax,2
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int 0x40
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jmp still
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button:
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mov eax,17
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int 0x40
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cmp al,byte 0
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jnz still
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mov eax,-1
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int 0x40
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set_variables:
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pusha
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mov ecx,190
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mov edi,pros
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mov eax,100
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cld
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rep stosb
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popa
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ret
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draw_window:
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pusha
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mov eax,12 ; tell os about redraw
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mov ebx,1
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int 0x40
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mov eax,0 ; define and draw window
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mov ebx,50*65536+207
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mov ecx,50*65536+127
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mov edx,0x03000000
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mov esi,0x806688aa
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mov edi,0x0088ccee
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int 0x40
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mov eax,4 ; 'CPU USAGE'
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mov ebx,8*65536+8
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mov ecx,dword 0x00ffffff
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mov edx,text
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mov esi,textlen-text
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int 0x40
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mov eax,12 ; tell os about redraw end
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mov ebx,2
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int 0x40
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popa
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ret
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draw_usage:
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pusha ; CPU usage
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cld
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mov eax,18 ; TSC / SEC
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mov ebx,5
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int 0x40
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shr eax,20
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push eax
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mov eax,18 ; IDLE / SEC
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mov ebx,4
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int 0x40
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shr eax,20
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xor edx,edx
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mov ebx,100
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mul ebx
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xor edx,edx
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pop ebx
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add ebx,1
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div ebx
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push eax
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mov esi,pros+1
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mov edi,pros
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mov ecx,195
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cld
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rep movsb
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pop eax
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mov [pros+99],al
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mov eax,13
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mov ebx,5*65536+1
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mov esi,pros
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mov edi,pros+99
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newpros:
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add esi,1
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xor eax,eax ; up
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mov al,[esi]
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add eax,1
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mov ecx,22*65536
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mov cx,ax
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mov eax,13
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mov edx,0x0
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int 0x40
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pusha ; down
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xor eax,eax
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mov al,[esi]
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mov ecx,22
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add ecx,eax
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shl ecx,16
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mov cx,101
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sub cx,ax
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mov eax,13
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mov edx,0xdddddd
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int 0x40
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popa
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add ebx,2*65536
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cmp esi,edi
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jb newpros
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popa
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ret
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; DATA AREA
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text: db 'CPU LOAD HISTORY '
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textlen:
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pros:
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I_END:
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