diff options
| -rw-r--r-- | Makefile | 13 | ||||
| -rw-r--r-- | compute_functions.asm | 44 | ||||
| -rw-r--r-- | macro.inc | 72 | ||||
| -rw-r--r-- | number_conversion.asm | 132 | ||||
| -rw-r--r-- | result.txt | 149 | ||||
| -rw-r--r-- | string_conversion.asm | 40 | ||||
| -rw-r--r-- | trigonometric_table.asm | 249 | ||||
| -rw-r--r-- | validations.asm | 74 |
8 files changed, 773 insertions, 0 deletions
diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..ddcbcba --- /dev/null +++ b/Makefile @@ -0,0 +1,13 @@ +ASM = nasm +ASMFLAGS = -f elf + +BUILDFLAGS = -m elf_i386 + +%.o: %.asm + $(ASM) $(ASMFLAGS) $< + +OBJMODULES = string_conversion.o validations.o compute_functions.o number_conversion.o \ + trigonometric_table.o + +trigonometric_table: $(OBJMODULES) + $(LD) $(BUILDFLAGS) $^ -o $@ diff --git a/compute_functions.asm b/compute_functions.asm new file mode 100644 index 0000000..339742a --- /dev/null +++ b/compute_functions.asm @@ -0,0 +1,44 @@ +global compute + +section .text + +; +; calculating functions (sine, cosine, tangent, catangent) +; [ebp+8] is integer angle +; [ebp+12] is pointer to sine buffer +; [ebp+16] is pointer to cosine buffer +; [ebp+20] is pointer to tangent buffer +; [ebp+24] is pointer to catangent buffer +; +compute: push ebp + mov ebp, esp + sub esp, 4 + mov dword [ebp-4], 180 + finit + fild dword [ebp+8] + fldpi + fmulp + fild dword [ebp-4] + fdivp + fld st0 ; copy radian angle + fsin + mov eax, [ebp+12] + fstp dword [eax] ; extract sin + fld st0 + fcos + mov eax, [ebp+16] + fstp dword [eax] ; extract cos + mov eax, [ebp+20] ; check tang + cmp dword [eax], 0ffffffffh ; undefined value + je .skip + fptan + fxch + fst dword [eax] ; extract tang +.skip: mov eax, [ebp+24] + cmp dword [eax], 0ffffffffh + je .quit + fdivp ; ctng + fstp dword [eax] ; extract ctng +.quit: mov esp, ebp + pop ebp + ret diff --git a/macro.inc b/macro.inc new file mode 100644 index 0000000..4253947 --- /dev/null +++ b/macro.inc @@ -0,0 +1,72 @@ +%macro get_arg 0 + add esi, 4 + mov edi, [esi] +%endmacro +%macro write_value 0 + mov edx, eax ; count + mov eax, 4 ; syscall write + mov ebx, [f_discr] + mov ecx, buffer + int 80h +%endmacro +%macro new_line 0 + mov eax, 4 + mov ebx, [f_discr] + mov ecx, nlstr + mov edx, 1 + int 80h +%endmacro +%macro vertical 0 + mov eax, 4 + mov ebx, [f_discr] + mov ecx, vert_sep + mov edx, 3 + int 80h +%endmacro +%macro border 0 + mov eax, 4 + mov ebx, [f_discr] + mov ecx, some_spaces + mov edx, 2 + int 80h + mov eax, 4 + mov ebx, [f_discr] + mov ecx, border_sep + mov edx, 53 + int 80h + mov eax, 4 + mov ebx, [f_discr] + mov ecx, some_spaces + mov edx, 2 + int 80h +%endmacro +%macro horizontal 0 + mov eax, 4 + mov ebx, [f_discr] + mov ecx, beg_sep + mov edx, 2 + int 80h + mov eax, 4 + mov ebx, [f_discr] + mov ecx, hor_sep + mov edx, hor_length + int 80h + mov eax, 4 + mov ebx, [f_discr] + mov ecx, end_sep + mov edx, 2 + int 80h +%endmacro +%macro placeholder 0 + mov eax, 4 + mov ebx, [f_discr] + mov ecx, some_spaces + int 80h +%endmacro +%macro undefined 0 + mov eax, 4 + mov ebx, [f_discr] + mov ecx, undef_value + mov edx, 1 + int 80h +%endmacro diff --git a/number_conversion.asm b/number_conversion.asm new file mode 100644 index 0000000..af6452f --- /dev/null +++ b/number_conversion.asm @@ -0,0 +1,132 @@ +global result_to_string +global input_to_string + +; +;local variables of result_to_string +; +%define ten ebp-4 +%define count ebp-8 +%define digit ebp-12 + +section .text + +; +; converts float number to string +; [ebp+8] is value of sine/cosine/tangent/cotangent +; [ebp+12] is pointer to buffer +; returns eax is string size +; +result_to_string: + push ebp + mov ebp, esp + sub esp, 12 ; memory allocation + mov dword [ten], 10 + mov dword [count], 0 + mov edi, [ebp+12] ; string address + cld + finit + fld dword [ebp+8] ; load number + ftst ; compare with 0.0 + fstsw ax ; save flags + sahf ; load flags + jnc .positiv + mov al, '-' + stosb + inc dword [count] + fchs ; modulus +.positiv: fld1 ; load 1 + fld st1 ; copy number to top + fprem ; fraction part + fsub st2, st0 ; integer + fxch st2 + xor ecx, ecx ; count for integer part +.lp1: fidiv dword [ten] ; number /10 + fxch st1 ; st0 = 1, st1 = number + fld st1 ; st0 = number, st1 = 1, st2 = number + fprem + fsub st2, st0 ; number - fract + fimul dword [ten] ; 0,fraction * 10 + fistp dword [digit] + push dword [digit] ; save integer part + inc ecx ; increment integer count + inc dword [count] ; incement total count + fxch st1 ; st0 = number, st1 = 1 + ftst ; integer part = 0.0 + fstsw ax + sahf + jne .lp1 +.extract: pop eax + add al, '0' + stosb + loop .extract + fstp st0 ; remove integer part + fxch st1 ; st0 = fraction part, st1 = 1 + ftst ; compare with 0.0 + fstsw ax + sahf + je .quit + mov al, '.' + stosb + inc dword [count] + mov ecx, 5 ; length fract part +.lp2: fimul dword [ten] + fxch st1 ; st0 = 1, st1 = number + fld st1 ; st0 = number, st1 = 1, st2 = number + fprem + fsub st2, st0 ; st2 = integer part + fxch st2 ; st0 = int part, st1 = 1, st2 = frac + fistp dword [digit] ; st0 = 1, st1 = frac + mov al, [digit] + add al, '0' + stosb + inc dword [count] + fxch st1 ; st0 = number, st1 = 1 + ftst + fstsw ax + sahf + je .quit ; number = 0.0 + loop .lp2 ; else reduce ecx +.quit: ffree st0 ; clear stack + fincstp + ffree st0 + fincstp + mov eax, [count] ; return count + mov esp, ebp + pop ebp + ret + + +; +; angle translation from integer to string +; [ebp+8] is number +; [ebp+12] is pointer to buffer +; return eax is pointer to the beggining of string +; and ecx is character count +; +input_to_string: + push ebp + mov ebp, esp + sub esp, 4 + push edi + mov dword [ebp-4], 10 + xor ecx, ecx ; count + mov edi, [ebp+12] ; buffer + add edi, 7 ; by the end of buffer + std ; from right to left + mov eax, [ebp+8] ; number +.lp: xor edx, edx + div dword [ebp-4] + xchg al, dl + add al, '0' + stosb + inc ecx + xchg al, dl + cmp eax, 0 + jne .lp + mov eax, edi ; address of string + inc eax + pop edi + mov esp, ebp + pop ebp + ret + diff --git a/result.txt b/result.txt new file mode 100644 index 0000000..cfbf364 --- /dev/null +++ b/result.txt @@ -0,0 +1,149 @@ + ----------------------------------------------------- + | deg | sin | cos | tan | ctg | + |-----------------------------------------------------| + | 0 | 0 | 1 | 0 | - | + |-----------------------------------------------------| + | 5 | 0.08715 | 0.99619 | 0.08748 | 11.43005 | + |-----------------------------------------------------| + | 10 | 0.17364 | 0.98480 | 0.17632 | 5.67128 | + |-----------------------------------------------------| + | 15 | 0.25881 | 0.96592 | 0.26794 | 3.73205 | + |-----------------------------------------------------| + | 20 | 0.34202 | 0.93969 | 0.36397 | 2.74747 | + |-----------------------------------------------------| + | 25 | 0.42261 | 0.90630 | 0.46630 | 2.14450 | + |-----------------------------------------------------| + | 30 | 0.5 | 0.86602 | 0.57735 | 1.73205 | + |-----------------------------------------------------| + | 35 | 0.57357 | 0.81915 | 0.70020 | 1.42814 | + |-----------------------------------------------------| + | 40 | 0.64278 | 0.76604 | 0.83909 | 1.19175 | + |-----------------------------------------------------| + | 45 | 0.70710 | 0.70710 | 1 | 1 | + |-----------------------------------------------------| + | 50 | 0.76604 | 0.64278 | 1.19175 | 0.83909 | + |-----------------------------------------------------| + | 55 | 0.81915 | 0.57357 | 1.42814 | 0.70020 | + |-----------------------------------------------------| + | 60 | 0.86602 | 0.5 | 1.73205 | 0.57735 | + |-----------------------------------------------------| + | 65 | 0.90630 | 0.42261 | 2.14450 | 0.46630 | + |-----------------------------------------------------| + | 70 | 0.93969 | 0.34202 | 2.74747 | 0.36397 | + |-----------------------------------------------------| + | 75 | 0.96592 | 0.25881 | 3.73205 | 0.26794 | + |-----------------------------------------------------| + | 80 | 0.98480 | 0.17364 | 5.67128 | 0.17632 | + |-----------------------------------------------------| + | 85 | 0.99619 | 0.08715 | 11.43005 | 0.08748 | + |-----------------------------------------------------| + | 90 | 1 | -0.00000 | - | -0 | + |-----------------------------------------------------| + | 95 | 0.99619 | -0.08715 | -11.43005 | -0.08748 | + |-----------------------------------------------------| + | 100 | 0.98480 | -0.17364 | -5.67128 | -0.17632 | + |-----------------------------------------------------| + | 105 | 0.96592 | -0.25881 | -3.73205 | -0.26794 | + |-----------------------------------------------------| + | 110 | 0.93969 | -0.34202 | -2.74747 | -0.36397 | + |-----------------------------------------------------| + | 115 | 0.90630 | -0.42261 | -2.14450 | -0.46630 | + |-----------------------------------------------------| + | 120 | 0.86602 | -0.5 | -1.73205 | -0.57735 | + |-----------------------------------------------------| + | 125 | 0.81915 | -0.57357 | -1.42814 | -0.70020 | + |-----------------------------------------------------| + | 130 | 0.76604 | -0.64278 | -1.19175 | -0.83909 | + |-----------------------------------------------------| + | 135 | 0.70710 | -0.70710 | -1 | -1 | + |-----------------------------------------------------| + | 140 | 0.64278 | -0.76604 | -0.83909 | -1.19175 | + |-----------------------------------------------------| + | 145 | 0.57357 | -0.81915 | -0.70020 | -1.42814 | + |-----------------------------------------------------| + | 150 | 0.5 | -0.86602 | -0.57735 | -1.73205 | + |-----------------------------------------------------| + | 155 | 0.42261 | -0.90630 | -0.46630 | -2.14450 | + |-----------------------------------------------------| + | 160 | 0.34202 | -0.93969 | -0.36397 | -2.74747 | + |-----------------------------------------------------| + | 165 | 0.25881 | -0.96592 | -0.26794 | -3.73205 | + |-----------------------------------------------------| + | 170 | 0.17364 | -0.98480 | -0.17632 | -5.67128 | + |-----------------------------------------------------| + | 175 | 0.08715 | -0.99619 | -0.08748 | -11.43005 | + |-----------------------------------------------------| + | 180 | -0.00000 | -1 | 0.00000 | - | + |-----------------------------------------------------| + | 185 | -0.08715 | -0.99619 | 0.08748 | 11.43005 | + |-----------------------------------------------------| + | 190 | -0.17364 | -0.98480 | 0.17632 | 5.67128 | + |-----------------------------------------------------| + | 195 | -0.25881 | -0.96592 | 0.26794 | 3.73205 | + |-----------------------------------------------------| + | 200 | -0.34202 | -0.93969 | 0.36397 | 2.74747 | + |-----------------------------------------------------| + | 205 | -0.42261 | -0.90630 | 0.46630 | 2.14450 | + |-----------------------------------------------------| + | 210 | -0.5 | -0.86602 | 0.57735 | 1.73205 | + |-----------------------------------------------------| + | 215 | -0.57357 | -0.81915 | 0.70020 | 1.42814 | + |-----------------------------------------------------| + | 220 | -0.64278 | -0.76604 | 0.83909 | 1.19175 | + |-----------------------------------------------------| + | 225 | -0.70710 | -0.70710 | 1 | 1 | + |-----------------------------------------------------| + | 230 | -0.76604 | -0.64278 | 1.19175 | 0.83909 | + |-----------------------------------------------------| + | 235 | -0.81915 | -0.57357 | 1.42814 | 0.70020 | + |-----------------------------------------------------| + | 240 | -0.86602 | -0.5 | 1.73205 | 0.57735 | + |-----------------------------------------------------| + | 245 | -0.90630 | -0.42261 | 2.14450 | 0.46630 | + |-----------------------------------------------------| + | 250 | -0.93969 | -0.34202 | 2.74747 | 0.36397 | + |-----------------------------------------------------| + | 255 | -0.96592 | -0.25881 | 3.73205 | 0.26794 | + |-----------------------------------------------------| + | 260 | -0.98480 | -0.17364 | 5.67128 | 0.17632 | + |-----------------------------------------------------| + | 265 | -0.99619 | -0.08715 | 11.43005 | 0.08748 | + |-----------------------------------------------------| + | 270 | -1 | 0.00000 | - | -0 | + |-----------------------------------------------------| + | 275 | -0.99619 | 0.08715 | -11.43005 | -0.08748 | + |-----------------------------------------------------| + | 280 | -0.98480 | 0.17364 | -5.67128 | -0.17632 | + |-----------------------------------------------------| + | 285 | -0.96592 | 0.25881 | -3.73205 | -0.26794 | + |-----------------------------------------------------| + | 290 | -0.93969 | 0.34202 | -2.74747 | -0.36397 | + |-----------------------------------------------------| + | 295 | -0.90630 | 0.42261 | -2.14450 | -0.46630 | + |-----------------------------------------------------| + | 300 | -0.86602 | 0.5 | -1.73205 | -0.57735 | + |-----------------------------------------------------| + | 305 | -0.81915 | 0.57357 | -1.42814 | -0.70020 | + |-----------------------------------------------------| + | 310 | -0.76604 | 0.64278 | -1.19175 | -0.83909 | + |-----------------------------------------------------| + | 315 | -0.70710 | 0.70710 | -1 | -1 | + |-----------------------------------------------------| + | 320 | -0.64278 | 0.76604 | -0.83909 | -1.19175 | + |-----------------------------------------------------| + | 325 | -0.57357 | 0.81915 | -0.70020 | -1.42814 | + |-----------------------------------------------------| + | 330 | -0.5 | 0.86602 | -0.57735 | -1.73205 | + |-----------------------------------------------------| + | 335 | -0.42261 | 0.90630 | -0.46630 | -2.14450 | + |-----------------------------------------------------| + | 340 | -0.34202 | 0.93969 | -0.36397 | -2.74747 | + |-----------------------------------------------------| + | 345 | -0.25881 | 0.96592 | -0.26794 | -3.73205 | + |-----------------------------------------------------| + | 350 | -0.17364 | 0.98480 | -0.17632 | -5.67128 | + |-----------------------------------------------------| + | 355 | -0.08715 | 0.99619 | -0.08748 | -11.43005 | + |-----------------------------------------------------| + | 360 | 0.00000 | 1 | 0.00000 | - | + ----------------------------------------------------- diff --git a/string_conversion.asm b/string_conversion.asm new file mode 100644 index 0000000..1cef531 --- /dev/null +++ b/string_conversion.asm @@ -0,0 +1,40 @@ +global to_int + +section .text + +; +; angle translation from string to integer +; [ebp+8] is pointer to string +; eax=-1 if digit is not 0-9 +; else eax=number +; +to_int: push ebp + mov ebp, esp + sub esp, 8 ; local variables + push esi ; save esi + mov dword [ebp-4], 0 ; init number + mov dword [ebp-8], 10 ; init const + mov esi, [ebp+8] ; buffer + cld +.lp: lodsb + cmp al, 0 + je .store + cmp al, '0' + jl .error + cmp al, '9' + jg .error + sub al, '0' + xor ecx, ecx + xchg al, cl + mov eax, [ebp-4] + mul dword [ebp-8] + add eax, ecx + mov [ebp-4], eax + jmp .lp +.error: mov eax, -1 + jmp .quit +.store: mov eax, [ebp-4] +.quit: pop esi + mov esp, ebp + pop ebp + ret diff --git a/trigonometric_table.asm b/trigonometric_table.asm new file mode 100644 index 0000000..d596204 --- /dev/null +++ b/trigonometric_table.asm @@ -0,0 +1,249 @@ +%include "macro.inc" + +global _start +extern result_to_string +extern compute +extern input_to_string +extern check_angle +extern check_tangent +extern check_cotanget +extern to_int + +section .text + +; +; MAIN PROGRAM +; +_start: pop ebx ; length of args + cmp ebx, 5 + jne .arg_error + mov esi, esp + get_arg ; file name + mov [f_name], edi + get_arg ; start angle + push edi + call to_int + add esp, 4 + cmp eax, -1 + je .arg_error + mov [beg_angle], eax + get_arg ; finish angle + push edi + call to_int + add esp, 4 + cmp eax, -1 + je .arg_error + mov [end_angle], eax + get_arg ; step + push edi + call to_int + add esp, 4 + cmp eax, -1 + je .arg_error + mov [step], eax + push dword [beg_angle] + push dword [end_angle] + call check_angle + add esp, 8 + cmp eax, 0 + je .angle_error + cmp eax, -1 + je .greater_error + mov eax, 5 + mov ebx, [f_name] + mov ecx, 241h ; open file + mov edx, 0666q ; rights + int 80h + mov ecx, eax + and ecx, 0fffff000h + cmp ecx, 0fffff000h + je .open_error + mov [f_discr], eax + border + new_line + mov eax, 4 + mov ebx, [f_discr] + mov ecx, title + mov edx, title_len + int 80h + new_line + mov esi, [beg_angle] +.lp: cmp esi, [end_angle] + jg .quit + horizontal + vertical + push buffer + push esi + call input_to_string ; for print input angle + add esp, 8 + push ecx ; save ecx + push eax ; save eax + mov eax, 3 + sub eax, ecx + cmp ecx, 0 + je .skip + mov edx, eax ; indent + placeholder +.skip: pop eax + pop ecx + mov edx, ecx ; count + mov ecx, eax ; address of string + mov eax, 4 ; write angle + mov ebx, [f_discr] + int 80h + vertical + push dword tan_value + push esi + call check_tangent + add esp, 8 + push dword ctg_value + push esi + call check_cotanget + add esp, 8 + push dword ctg_value ; pointer to catangent buffer + push dword tan_value ; pointer to tangent buffer + push dword cos_value ; pointer to cosine buffer + push dword sin_value ; pointer to sine buffer + push esi ; angle + call compute + add esp, 20 + push buffer + push dword [sin_value] + call result_to_string + add esp, 8 + mov edx, 9 + sub edx, eax ; indent + cmp edx, 0 + je .print_sin + push eax ; save length + placeholder + pop eax +.print_sin: write_value + vertical + push buffer + push dword [cos_value] + call result_to_string + add esp, 8 + mov edx, 9 + sub edx, eax ; indent + cmp edx, 0 + je .print_cos + push eax + placeholder + pop eax +.print_cos: write_value + vertical + cmp dword [tan_value], 0ffffffffh + jne .tan + mov edx, 8 ; placeholder length + placeholder + undefined + vertical + jmp .cmp_ctg +.tan: push buffer + push dword [tan_value] + call result_to_string + add esp, 8 + mov edx, 9 + sub edx, eax ; indent + cmp edx, 0 + je .print_tan + push eax + placeholder + pop eax +.print_tan: write_value + vertical +.cmp_ctg: cmp dword [ctg_value], 0ffffffffh + jne .ctg + mov edx, 8 + placeholder + undefined + vertical + jmp .nl +.ctg: push buffer + push dword [ctg_value] + call result_to_string + add esp, 8 + mov edx, 9 + sub edx, eax ; indent + cmp edx, 0 + je .print_ctg + push eax + placeholder + pop eax +.print_ctg: write_value + vertical +.nl: new_line + cmp byte [step], 0 + je .quit + add esi, [step] ; next step + jmp .lp +.arg_error: mov eax, 4 + mov ebx, 1 + mov ecx, err1msg + mov edx, err1len + int 80h + jmp .exit_code +.angle_error: mov eax, 4 + mov ebx, 1 + mov ecx, err2msg + mov edx, err2len + int 80h + jmp .exit_code +.greater_error: mov eax, 4 + mov ebx, 1 + mov ecx, err3msg + mov edx, err3len + int 80h + jmp .exit_code +.open_error: mov eax, 4 + mov ebx, 1 + mov ecx, err4msg + mov edx, err4len + int 80h +.exit_code: mov eax, 1 + mov ebx, 1 + int 80h +.quit: border + new_line + mov eax, 6 ; close file + mov ebx, [f_discr] + int 80h + mov eax, 1 ; finish + mov ebx, 0 + int 80h + +section .bss + +f_name resd 1 +f_discr resd 1 +beg_angle resd 1 +end_angle resd 1 +step resd 1 +sin_value resd 1 +cos_value resd 1 +tan_value resd 1 +ctg_value resd 1 +buffer resb 8 + +section .data + +err1msg db "Usage <name file> <start angle> <end angle> <step>", 10 +err1len equ $-err1msg +err2msg db "Angle must be from 0 to 360", 10 +err2len equ $-err2msg +err3msg db "Start angle is incorrectly entered", 10 +err3len equ $-err3msg +err4msg db "Couldn't open source file", 10 +err4len equ $-err4msg +nlstr db 10 +vert_sep db " | " +beg_sep db " |" +end_sep db '|', 10 +hor_sep times 53 db '-' +hor_length equ $-hor_sep +border_sep times 53 db '-' +some_spaces times 8 db ' ' +undef_value db '-' +title db " | deg | sin | cos | tan | ctg |" +title_len equ $-title diff --git a/validations.asm b/validations.asm new file mode 100644 index 0000000..12c8e26 --- /dev/null +++ b/validations.asm @@ -0,0 +1,74 @@ +global check_angle +global check_tangent +global check_cotanget + +section .text +; +; angle validation +; [ebp+8] is end angle +; [ebp+12] is begin angle +; returns eax=-1 if begin angle is greater than end angle +; eax=0 if end angle < 0 or > 360 +; eax=1 if angles are correct +; +check_angle: push ebp + mov ebp, esp + mov eax, [ebp+8] ; end_angle + mov edx, [ebp+12] ; begin_angle + cmp edx, eax + jg .error2 + cmp eax, 0 + jl .error1 + cmp eax, 360 + jg .error1 + mov eax, 1 + jmp .quit +.error1: xor eax, eax + jmp .quit +.error2: mov eax, -1 +.quit: pop ebp + ret + +; +; tangent test +; [ebp+8] is integer angle +; [ebp+12] is pointer to tangent buffer +; buffer=ffffffffh if tangent=90 or 270 +; else buffer=1 +; +check_tangent: push ebp + mov ebp, esp + mov eax, [ebp+8] ; value + mov ecx, [ebp+12] ; address + mov dword [ecx], 1 ; true + cmp eax, 90 + je .undefined + cmp eax, 270 + je .undefined + jmp .quit +.undefined: mov dword [ecx], 0ffffffffh ; false (255) +.quit: pop ebp + ret + +; +; cotangent test +; [ebp+8] is integer angle +; [ebp+12] is pointer to cotangent buffer +; buffer=ffffffffh if cotangent=0, 180 or 360 +; else buffer=1 +; +check_cotanget: push ebp + mov ebp, esp + mov eax, [ebp+8] ; value + mov ecx, [ebp+12] ; address + mov dword [ecx], 1 ; true + cmp eax, 0 + je .undefined + cmp eax, 180 + je .undefined + cmp eax, 360 + je .undefined + jmp .quit +.undefined: mov dword [ecx], 0ffffffffh ; false (255) +.quit: pop ebp + ret |