Terminal control/Dimensions: Difference between revisions
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Determine the height and width of the terminal, and store this information into variables for subsequent use. |
Determine the height and width of the terminal, and store this information into variables for subsequent use. |
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[[Terminal Control::task| ]] |
[[Terminal Control::task| ]] |
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=={{header|AArch64 Assembly}}== |
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{{works with|as|Raspberry Pi 3B version Buster 64 bits}} |
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<lang AArch64 Assembly> |
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/* ARM assembly AARCH64 Raspberry PI 3B */ |
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/* program terminalSize64.s */ |
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/*******************************************/ |
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/* Constantes file */ |
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/*******************************************/ |
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/* for this file see task include a file in language AArch64 assembly*/ |
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.include "../includeConstantesARM64.inc" |
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.equ TIOCGWINSZ, 0x5413 |
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.equ IOCTL, 0x1D // Linux syscall |
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/*******************************************/ |
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/* Structures */ |
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/********************************************/ |
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/* structure terminal size */ |
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.struct 0 |
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term_s_lines: // input modes |
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.struct term_s_lines + 2 |
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term_s_cols: // output modes |
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.struct term_s_cols + 2 |
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term_s_filler: // control modes |
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.struct term_s_filler + 12 |
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term_fin: |
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/*******************************************/ |
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/* Initialized data */ |
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/*******************************************/ |
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.data |
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szMessStartPgm: .asciz "Program start \n" |
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szMessEndPgm: .asciz "Program normal end.\n" |
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szMessResult: .asciz "Terminal lines : @ cols : @ \n" |
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szMessErreur: .asciz "\033[31mError IOCTL.\n" |
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szCarriageReturn: .asciz "\n" |
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/*******************************************/ |
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/* UnInitialized data */ |
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/*******************************************/ |
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.bss |
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.align 4 |
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sZoneConv: .skip 24 |
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stTerminal: .skip term_fin // structure terminal |
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/*******************************************/ |
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/* code section */ |
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/*******************************************/ |
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.text |
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.global main |
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main: |
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ldr x0,qAdrszMessStartPgm //display start message |
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bl affichageMess |
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/* read terminal dimensions */ |
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mov x0,STDIN // input console |
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mov x1,TIOCGWINSZ // code IOCTL |
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ldr x2,qAdrstTerminal // structure address |
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mov x8,IOCTL // call system Linux |
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svc 0 |
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cbnz x0,98f // error ? |
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ldr x2,qAdrstTerminal |
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ldrh w0,[x2,term_s_lines] // load two bytes |
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ldr x1,qAdrsZoneConv |
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bl conversion10 // and decimal conversion |
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ldr x0,qAdrszMessResult |
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bl strInsertAtChar // and insertion in message |
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mov x5,x0 // save address of new message |
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ldrh w0,[x2,term_s_cols] // load two bytes |
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ldr x1,qAdrsZoneConv |
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bl conversion10 // and decimal conversion |
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mov x0,x5 // restaur address of message |
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bl strInsertAtChar // and insertion in message |
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bl affichageMess |
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ldr x0,qAdrszMessEndPgm //display end message |
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bl affichageMess |
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b 100f |
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98: // error display |
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ldr x0,qAdrszMessErreur |
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bl affichageMess |
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mov x0,-1 |
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100: //standard end of the program |
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mov x0,0 //return code |
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mov x8,EXIT //request to exit program |
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svc 0 //perform system call |
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qAdrszMessStartPgm: .quad szMessStartPgm |
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qAdrszMessEndPgm: .quad szMessEndPgm |
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qAdrszMessErreur: .quad szMessErreur |
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qAdrszCarriageReturn: .quad szCarriageReturn |
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qAdrstTerminal: .quad stTerminal |
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qAdrszMessResult: .quad szMessResult |
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qAdrsZoneConv: .quad sZoneConv |
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/********************************************************/ |
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/* File Include fonctions */ |
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/********************************************************/ |
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/* for this file see task include a file in language AArch64 assembly */ |
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.include "../includeARM64.inc" |
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</lang> |
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<pre> |
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Program start |
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Terminal lines : 24 cols : 80 |
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Program normal end. |
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</pre> |
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=={{header|Applesoft BASIC}}== |
=={{header|Applesoft BASIC}}== |
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<lang ApplesoftBasic>WIDTH = PEEK(33) |
<lang ApplesoftBasic>WIDTH = PEEK(33) |
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