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/programs/calc/trunk/calc.asm
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Calculator for MenuetOS
;;
;; Compile with FASM for Menuet
;;
 
 
use32
 
org 0x0
 
db 'MENUET01' ; 8 byte id
dd 0x01 ; header version
dd START ; start of code
dd I_END ; size of image
dd 0x1000 ; memory for app
dd 0x1000 ; esp
dd 0x0 , 0x0 ; I_Param , I_Icon
 
include 'lang.inc'
include 'macros.inc'
 
START: ; start of execution
 
call draw_window
 
still:
 
mov eax,10 ; wait here for event
int 0x40
 
cmp eax,1 ; redraw request ?
je red
cmp eax,2 ; key in buffer ?
je key
cmp eax,3 ; button in buffer ?
je button
 
jmp still
 
red: ; redraw
call draw_window
jmp still
 
key: ; key
mov eax,2
int 0x40
shr eax,8
mov edi,asci ;translation & emulation
mov ecx,35 ;of button ID's
cld
repne scasb
jne still
sub edi,asci
dec edi
mov esi,butid
add esi,edi
lodsb
jmp testbut
 
button: ; button
mov eax,17 ; get id
int 0x40
 
shr eax,8
testbut:
cmp eax,1 ; button id=1 ?
jne noclose
mov eax,-1 ; close this program
int 0x40
noclose:
 
cmp eax,2
jne no_reset
call clear_all
jmp still
no_reset:
 
finit
 
mov ebx,muuta1 ; Transform to fpu format
mov esi,18
call atof
fstp [trans1]
 
mov ebx,muuta2
mov esi,18
call atof
fstp [trans2]
 
fld [trans2]
 
cmp eax,30
jne no_sign
cmp [dsign],byte '-'
jne no_m
mov [dsign],byte '+'
call print_display
jmp still
no_m:
mov [dsign],byte '-'
call print_display
jmp still
no_sign:
 
cmp eax,3
jne no_display_change
inc [display_type]
cmp [display_type],2
jbe display_continue
mov [display_type],0
display_continue:
mov eax,[display_type]
mov eax,[multipl+eax*4]
mov [entry_multiplier],eax
call print_display
jmp still
multipl: dd 10,16,2
 
no_display_change:
 
 
cmp eax,6
jb no_10_15
cmp eax,11
jg no_10_15
add eax,4
call number_entry
jmp still
no_10_15:
 
cmp eax,12
jb no_13
cmp eax,14
jg no_13
sub eax,11
call number_entry
jmp still
no_13:
 
cmp eax,12+6
jb no_46
cmp eax,14+6
jg no_46
sub eax,11+3
call number_entry
jmp still
no_46:
 
cmp eax,12+12
jb no_79
cmp eax,14+12
jg no_79
sub eax,11+6
call number_entry
jmp still
no_79:
 
cmp eax,13+18
jne no_0
mov eax,0
call number_entry
jmp still
no_0:
 
cmp eax,32
jne no_id
inc [id]
and [id],1
mov [new_dec],100000
jmp still
no_id:
 
cmp eax,16
jne no_sin
fld [trans1]
fsin
jmp show_result
no_sin:
 
cmp eax,17
jne no_int
fld [trans1]
frndint
jmp show_result
no_int:
 
cmp eax,22
jne no_cos
fld [trans1]
fcos
jmp show_result
no_cos:
 
cmp eax,23
jne no_lg2
fldlg2
jmp show_result
no_lg2:
 
cmp eax,28
jne no_tan
fld [trans1]
fcos
fstp [tmp2]
fld [trans1]
fsin
fdiv [tmp2]
jmp show_result
no_tan:
 
cmp eax,29
jne no_pi
fldpi
jmp show_result
no_pi:
 
cmp eax,34
jne no_sqrt
fld [trans1]
fsqrt
jmp show_result
no_sqrt:
 
cmp eax,15
jne no_add
call calculate
call print_display
call new_entry
mov [calc],'+'
jmp still
no_add:
 
cmp eax,21
jne no_sub
call calculate
call print_display
call new_entry
mov [calc],'-'
jmp still
no_sub:
 
cmp eax,27
jne no_div
call calculate
call print_display
call new_entry
mov [calc],'/'
jmp still
no_div:
 
cmp eax,33
jne no_mul
call calculate
call print_display
mov [calc],'*'
call new_entry
jmp still
no_mul:
 
cmp eax,35
jne no_calc
call calculate
jmp still
no_calc:
 
jmp still
 
show_result:
 
call ftoa
call print_display
 
jmp still
 
error:
 
jmp still
 
 
calculate:
 
pusha
 
cmp [calc],' '
je no_calculation
 
cmp [calc],'/'
jne no_cdiv
fdiv [trans1]
no_cdiv:
 
cmp [calc],'*'
jne no_cmul
fmul [trans1]
no_cmul:
 
cmp [calc],'+'
jne no_cadd
fadd [trans1]
no_cadd:
 
cmp [calc],'-'
jne no_cdec
fsub [trans1]
no_cdec:
 
call ftoa
call print_display
 
no_calculation:
 
popa
 
ret
 
 
 
number_entry:
 
pusha
 
cmp eax,[entry_multiplier]
jge no_entry
 
cmp [id],1
je decimal_entry
 
mov ebx,[integer]
test ebx,0xF0000000
jnz no_entry
 
mov ebx,eax
mov eax,[integer]
mov ecx,[entry_multiplier]
mul ecx
add eax,ebx
mov [integer],eax
call print_display
 
call to_muuta
 
popa
ret
 
decimal_entry:
 
imul eax,[new_dec]
add [decimal],eax
 
mov eax,[new_dec]
xor edx,edx
mov ebx,[entry_multiplier]
div ebx
mov [new_dec],eax
 
call print_display
 
call to_muuta
 
popa
 
ret
 
no_entry:
 
call print_display
 
call to_muuta
 
popa
ret
 
 
to_muuta:
 
pusha
 
mov al,[dsign]
 
mov esi,muuta0
mov edi,muuta1
mov ecx,18
cld
rep movsb
 
mov [muuta1],al
 
mov edi,muuta1+10 ; INTEGER
mov eax,[integer]
new_to_muuta1:
mov ebx,10
xor edx,edx
div ebx
mov [edi],dl
add [edi],byte 48
dec edi
cmp edi,muuta1+1
jge new_to_muuta1
 
mov edi,muuta1+17 ; DECIMAL
mov eax,[decimal]
new_to_muuta2:
mov ebx,10
xor edx,edx
div ebx
mov [edi],dl
add [edi],byte 48
dec edi
cmp edi,muuta1+12
jge new_to_muuta2
 
call print_muuta
 
popa
ret
 
 
 
print_muuta:
 
pusha
 
mov eax,13
mov ebx,25*65536+125
mov ecx,200*65536+22
mov edx,0xffffff
int 0x40
 
mov eax,4
mov ebx,25*65536+200
mov ecx,0x0
mov edx,muuta1
mov esi,18
int 0x40
 
mov eax,4
mov ebx,25*65536+210
mov ecx,0x0
mov edx,muuta2
mov esi,18
int 0x40
 
popa
ret
 
 
 
new_entry:
 
pusha
 
mov esi,muuta1
mov edi,muuta2
mov ecx,18
cld
rep movsb
 
mov esi,muuta0
mov edi,muuta1
mov ecx,18
cld
rep movsb
 
mov [integer],0
mov [decimal],0
mov [id],0
mov [new_dec],100000
mov [sign],byte '+'
 
popa
ret
 
ten dd 10.0,0
tmp dw 1,0
sign db 1,0
tmp2 dq 0x0,0
exp dd 0x0,0
new_dec dd 100000,0
id db 0x0,0
 
k8 dd 10000000
k8r dq 0
 
res dd 0
 
trans1 dq 0
trans2 dq 0
 
controlWord dw 1
 
 
 
 
ftoa: ; fpu st0 -> [integer],[decimal]
 
pusha
 
fst [tmp2]
 
fstcw [controlWord] ; set truncate integer mode
mov ax,[controlWord]
mov [tmp], ax
or [tmp], word 0x0C00
fldcw [tmp]
 
ftst ; test if st0 is negative
fstsw ax
and ax, 4500h
mov [sign], 0
cmp ax, 0100h
jne no_neg
mov [sign],1
no_neg:
 
fld [tmp2]
fistp [integer]
 
fld [tmp2]
fisub [integer]
 
fldcw [controlWord]
 
cmp byte [sign], 0 ; change fraction to positive
je no_neg2
fchs
no_neg2:
 
mov [res],0 ; convert 6 decimal numbers
mov edi,6
 
newd:
 
fimul [kymppi]
fist [decimal]
 
mov ebx,[res]
imul ebx,10
mov [res],ebx
 
mov eax,[decimal]
add [res],eax
 
fisub [decimal]
 
fst [tmp2]
 
ftst
fstsw ax
test ax,1
jnz real_done
 
fld [tmp2]
 
dec edi
jz real_done
 
jmp newd
 
real_done:
 
mov eax,[res]
mov [decimal],eax
 
cmp [integer],0x80000000 ; out of fpu limits
jne no_error
mov [integer],0
mov [decimal],0
call clear_all
mov [calc],'E'
no_error:
 
mov [dsign],byte '+'
cmp [sign],byte 0 ; convert negative result
je no_negative
mov eax,[integer]
not eax
inc eax
mov [integer],eax
mov [dsign],byte '-'
no_negative:
 
call to_muuta
 
popa
ret
 
 
 
atof:
 
push ax
push di
 
fldz
mov di, 0
cmp si, 0
je .error ; Jump if string has 0 length.
 
mov byte [sign], 0
 
cmp byte [bx], '+' ; Take care of leading '+' or '-'.
jne .noPlus
inc di
jmp .noMinus
.noPlus:
 
cmp byte [bx], '-'
jne .noMinus
mov byte [sign], 1 ; Number is negative.
inc di
.noMinus:
 
cmp si, di
je .error
 
call atof_convertWholePart
jc .error
 
call atof_convertFractionalPart
jc .error
 
cmp byte [sign], 0
je .dontNegate
fchs ; Negate value
.dontNegate:
 
mov bh, 0 ; Set bh to indicate the string is a valid number.
jmp .exit
 
.error:
mov bh, 1 ; Set error code.
fstp st0 ; Pop top of fpu stack.
 
.exit:
pop di
pop ax
 
ret
 
 
 
atof_convertWholePart:
 
; Convert the whole number part (the part preceding the decimal
; point) by reading a digit at a time, multiplying the current
; value by 10, and adding the digit.
 
.mainLoop:
 
mov al, [bx + di]
cmp al, '.'
je .exit
 
cmp al, '0' ; Make sure character is a digit.
jb .error
cmp al, '9'
ja .error
 
; Convert single character to digit and save to memory for
; transfer to the FPU.
 
sub al, '0'
mov ah, 0
mov [tmp], ax
 
; Multiply current value by 10 and add in digit.
 
fmul dword [ten]
fiadd word [tmp]
 
inc di
cmp si, di ; Jump if end of string has been reached.
je .exit
jmp .mainLoop
 
.error:
stc ; Set error (carry) flag.
ret
 
.exit:
clc ; Clear error (carry) flag.
ret
 
 
atof_convertFractionalPart:
 
fld1 ; Load 1 to TOS. This will be the value of the decimal place.
 
.mainLoop:
 
cmp si, di ; Jump if end of string has been reached.
je .exit
 
inc di ; Move past the decimal point.
cmp si, di ; Jump if end of string has been reached.
je .exit
mov al, [bx + di]
 
cmp al, '0' ; Make sure character is a digit.
jb .error
cmp al, '9'
ja .error
 
fdiv dword [ten] ; Next decimal place
 
sub al, '0'
mov ah, 0
mov [tmp], ax
 
; Load digit, multiply by value for appropriate decimal place,
; and add to current total.
 
fild word [tmp]
fmul st0, st1
faddp st2, st0
 
jmp .mainLoop
 
.error:
 
stc ; Set error (carry) flag.
fstp st0 ; Pop top of fpu stack.
ret
 
.exit:
 
clc ; Clear error (carry) flag.
fstp st0 ; Pop top of fpu stack.
ret
 
 
 
 
; *********************************************
; ******* WINDOW DEFINITIONS AND DRAW ********
; *********************************************
 
 
draw_window:
 
 
mov eax,12 ; function 12:tell os about windowdraw
mov ebx,1 ; 1, start of draw
int 0x40
 
; DRAW WINDOW
mov eax,0 ; function 0 : define and draw window
mov ebx,100*65536+230 ; [x start] *65536 + [x size]
mov ecx,100*65536+185 ; [y start] *65536 + [y size]
mov edx,0x02ffffff ; color of work area RRGGBB,8->color gl
mov esi,0x805977bb ; color of grab bar RRGGBB,8->color gl
mov edi,0x005977bb ; color of frames RRGGBB
int 0x40
; CLOSE BUTTON
mov eax,8 ; function 8 : define and draw button
mov ebx,(230-18)*65536+12 ; [x start] *65536 + [x size]
mov ecx,4*65536+12 ; [y start] *65536 + [y size]
mov edx,1 ; button id
mov esi,0x335599 ; button color RRGGBB
int 0x40
 
; WINDOW LABEL
mov eax,4 ; function 4 : write text to window
mov ebx,8*65536+8 ; [x start] *65536 + [y start]
mov ecx,0x00ddeeff ; color of text RRGGBB
mov edx,labelt ; pointer to text beginning
mov esi,labellen-labelt ; text length
int 0x40
 
mov ebx,24*65536+25+3
mov ecx,70*65536+17
mov edx,6
mov esi,0x303090;cc2211
mov edi,7
newbutton:
dec edi
jnz no_new_row
mov edi,6
mov ebx,24*65536+25+3
add ecx,20*65536
no_new_row:
mov eax,8
int 0x40
add ebx,30*65536
inc edx
cmp edx,11+24
jbe newbutton
 
mov eax,8 ; CLEAR ALL
mov ebx,25*65536+27
mov ecx,41*65536+15
mov edx,2
int 0x40
 
mov eax,8 ; CHANGE DISPLAY TYPE
mov ebx,203*65536+7
mov ecx,28*65536+7
mov edx,3
int 0x40
 
mov ebx,25*65536+35 ; draw info text with function 4
mov ecx,0xffffff ; 224466
mov edx,text
mov esi,30
newline:
mov eax,4
int 0x40
add ebx,10
add edx,30
cmp [edx],byte 'x'
jne newline
 
call print_display
 
mov eax,12 ; function 12:tell os about windowdraw
mov ebx,2 ; 2, end of draw
int 0x40
 
ret
 
 
 
print_display:
 
pusha
 
mov eax,13
mov ebx,59*65536+143
mov ecx,24*65536+44
mov edx,0xffffff
int 0x40
 
mov eax,4
mov ebx,120*65536+28
mov ecx,0
mov edx,calc
mov esi,1
int 0x40
 
mov eax,4
mov ebx,175*65536+28
mov ecx,0
mov edx,[display_type]
shl edx,2
add edx,display_type_text
mov esi,3
int 0x40
 
cmp [display_type],0 ; display as desimal
jne no_display_decimal
 
mov eax,47
mov ebx,11*65536 ; 11 decimal digits for 32 bits
mov ecx,[integer]
mov edx,84*65536+44
mov esi,0x0
int 0x40
 
mov eax,47
mov ebx,6*65536
mov ecx,[decimal]
mov edx,156*65536+44
mov esi,0x0
int 0x40
 
mov eax,4
mov ebx,150*65536+44
mov ecx,0x0
mov edx,dot
mov esi,1
int 0x40
 
mov eax,4
mov ebx,77*65536+44
mov ecx,0x0
mov edx,dsign
mov esi,1
int 0x40
 
no_display_decimal:
 
cmp [display_type],1
jne no_display_hexadecimal
 
mov eax,4
mov ebx,138*65536+44
mov ecx,0x0
mov edx,dsign
mov esi,1
int 0x40
 
mov eax,47
mov ebx,1*256+8*65536 ; 8 hexadecimal digits for 32 bits
mov ecx,[integer]
mov edx,144*65536+44
mov esi,0x0
int 0x40
 
no_display_hexadecimal:
 
 
cmp [display_type],2
jne no_display_binary
 
mov eax,4
mov ebx,96*65536+44
mov ecx,0x0
mov edx,dsign
mov esi,1
int 0x40
 
mov eax,47
mov ebx,2*256+15*65536 ; 16 binary digits for 32 bits
mov ecx,[integer]
mov edx,102*65536+44
mov esi,0x0
int 0x40
 
no_display_binary:
 
popa
ret
 
 
clear_all:
 
pusha
 
mov [calc],' '
mov [integer],0
mov [decimal],0
mov [id],0
mov [dsign],byte '+'
mov esi,muuta0
mov edi,muuta1
mov ecx,18
cld
rep movsb
mov esi,muuta0
mov edi,muuta2
mov ecx,18
cld
rep movsb
call print_muuta
call print_display
 
popa
ret
 
 
 
; DATA AREA
 
display_type dd 0 ; 0 = decimal, 1 = hexadecimal, 2= binary
entry_multiplier dd 10
 
display_start_y dd 0x0
display_type_text db 'dec hex bin'
 
dot db '.'
 
calc db ' '
 
integer dd 0
decimal dd 0
 
kymppi dd 10
 
dsign:
muuta1 db '+0000000000.000000'
muuta2 db '+0000000000.000000'
muuta0 db '+0000000000.000000'
 
 
text:
db ' '
db ' C '
db ' '
db ' '
db ' A B C D E F '
db ' '
db ' 1 2 3 + SIN INT '
db ' '
db ' 4 5 6 - COS LG2 '
db ' '
db ' 7 8 9 / TAN P '
db ' '
db ' -/+ 0 . * SQR = '
db ' '
db 'x <- END MARKER, DONT DELETE '
asci: db 49,50,51,52,53,54,55,56,57,48,43,61,45,42,47,44,46,52,13,97,98,99,100
db 101,102,65,66,67,68,69,70,112,80,27,182
butid: db 12,13,14,18,19,20,24,25,26,31,15,35,21,33,27,32,32,33,35,6,7,8,9,10,11
db 6,7,8,9,10,11,29,29,2,2
 
labelt:
db 'FPU CALCULATOR'
labellen:
 
I_END:
 
 
 
 
 
Property changes:
Added: svn:eol-style
+native
\ No newline at end of property