azan

prayers time calculator written in nasm
git clone git://git.afify.dev/azan
Log | Files | Refs | README | LICENSE

commit 7ac4531dbfa5c1733aaca52b202767810da9b6e8
Author: afify <hassan@afify.dev>
Date:   Wed,  4 Nov 2020 02:57:46 +0300

initial commit

Diffstat:
ALICENSE | 29+++++++++++++++++++++++++++++
AMakefile | 51+++++++++++++++++++++++++++++++++++++++++++++++++++
AREADME.md | 32++++++++++++++++++++++++++++++++
Aazan-nasm.1 | 15+++++++++++++++
Aazan-nasm.s | 68++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Aconfig.mk | 16++++++++++++++++
Amacros.s | 52++++++++++++++++++++++++++++++++++++++++++++++++++++
Asyscalls.s | 16++++++++++++++++
8 files changed, 279 insertions(+), 0 deletions(-)

diff --git a/LICENSE b/LICENSE @@ -0,0 +1,29 @@ +BSD 3-Clause License + +© 2020 Hassan Afify <hassan at afify dot dev> +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +3. Neither the name of the copyright holder nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/Makefile b/Makefile @@ -0,0 +1,51 @@ +# azan-nasm +# See LICENSE file for copyright and license details. + +include config.mk + +BIN = azan-nasm +SRC = ${BIN}.s +OBJ = ${SRC:.s=.o} + +all: options ${BIN} + +options: + @echo ${BIN} build options: + @echo "AFLAGS = ${AFLAGS}" + @echo "LFLAGS = ${LFLAGS}" + @echo "ASM = ${ASM}" + @echo "LNK = ${LNK}" + +.s.o: + ${ASM} ${AFLAGS} $< + +${OBJ}: config.mk + +${BIN}: ${OBJ} + ${LNK} ${LFLAGS} -o $@ ${OBJ} + +clean: + rm -rf ${OBJ} ${BIN} ${BIN}-${VERSION}.tar.gz + +dist: clean + mkdir -p ${BIN}-${VERSION} + cp -R LICENSE Makefile README.md config.mk\ + ${BIN}.1 ${SRC} ${BIN}-${VERSION} + tar -cf ${BIN}-${VERSION}.tar ${BIN}-${VERSION} + gzip ${BIN}-${VERSION}.tar + rm -rf ${BIN}-${VERSION} + +install: ${BIN} + mkdir -p ${DESTDIR}${PREFIX}/bin + cp -f ${BIN} ${DESTDIR}${PREFIX}/bin + chmod 755 ${DESTDIR}${PREFIX}/bin/${BIN} + mkdir -p ${DESTDIR}${MANPREFIX}/man1 + sed "s/VERSION/${VERSION}/g" < ${BIN}.1 > \ + ${DESTDIR}${MANPREFIX}/man1/${BIN}.1 + chmod 644 ${DESTDIR}${MANPREFIX}/man1/${BIN}.1 + +uninstall: + rm -f ${DESTDIR}${PREFIX}/bin/${BIN}\ + ${DESTDIR}${MANPREFIX}/man1/${BIN}.1 + +.PHONY: all options clean dist install uninstall diff --git a/README.md b/README.md @@ -0,0 +1,32 @@ +azan-nasm +========= + +azan-nasm is nasm azan implementation + +Installation +------------ +**current** +```sh +git clone https://github.com/afify/azan-nasm.git +cd azan-nasm/ +make +make install +``` +**latest release** +```sh +wget --content-disposition $(curl -s https://api.github.com/repos/afify/azan-nasm/releases/latest | tr -d '",' | awk '/tag_name/ {print "https://github.com/afify/azan-nasm/archive/"$2".tar.gz"}') +tar -xzf azan-nasm-*.tar.gz && cd azan-nasm-*/ +make +make install +``` +Run +--- +```sh +$ azan-nasm +``` +Options +------- +```sh +$ azan-nasm +$ man azan-nasm +``` diff --git a/azan-nasm.1 b/azan-nasm.1 @@ -0,0 +1,15 @@ +.TH AZAN 1 azan\-VERSION +.SH NAME +azan \- simple muslim prayers calculator +.SH SYNOPSIS +.B azan +.SH DESCRIPTION +azan is a simple muslim prayers calculator for unix-like systems. Show prayers time. +.SH USAGE +.TP +.B azan +print next prayer left duration. +.SH AUTHORS +See the LICENSE file for the authors. +.SH LICENSE +See the LICENSE file for the terms of redistribution. diff --git a/azan-nasm.s b/azan-nasm.s @@ -0,0 +1,68 @@ +; See LICENSE file for copyright and license details. +; azan-nasm is simple muslim prayers calculator. +; print next prayer left duration or today's all prayers. + +BITS 64 +%include "syscalls.s" +%include "macros.s" +CHECK_OPENBSD + +section .bss + digitSpace: resb 100 + digitSpacePos: resb 8 + current_time: resb 12 + +section .text + global _start + +_start: + mov rax, SYS_gettimeofday + mov rdi, current_time + mov rsi, rsi + syscall + + mov rax, [current_time] + + call _printRAX + EEXIT EXIT_SUCCESS + +_printRAX: + mov rcx, digitSpace + mov rbx, 10 + mov [rcx], rbx + inc rcx + mov [digitSpacePos], rcx + +_printRAXLoop: + mov rdx, 0 + mov rbx, 10 + div rbx + push rax + add rdx, 48 + + mov rcx, [digitSpacePos] + mov [rcx], dl + inc rcx + mov [digitSpacePos], rcx + + pop rax + cmp rax, 0 + jne _printRAXLoop + +_printRAXLoop2: + mov rcx, [digitSpacePos] + + mov rax, 1 + mov rdi, 1 + mov rsi, rcx + mov rdx, 1 + syscall + + mov rcx, [digitSpacePos] + dec rcx + mov [digitSpacePos], rcx + + cmp rcx, digitSpace + jge _printRAXLoop2 + + ret diff --git a/config.mk b/config.mk @@ -0,0 +1,16 @@ +# azan-nasm version +VERSION = 0.1 + +# Customize below to fit your system + +# paths +PREFIX = /usr/local +MANPREFIX = ${PREFIX}/share/man + +# flags +AFLAGS = -f elf64 -w+all -D$$(uname) +LFLAGS = -m elf_x86_64 -no-pie + +# compiler and linker +ASM = nasm +LNK = ld diff --git a/macros.s b/macros.s @@ -0,0 +1,52 @@ +; See LICENSE file for copyright and license details. + +%ifndef MACROS_S +%define MACROS_S + +%define EXIT_SUCCESS 0 +%define EXIT_FAILURE 1 +%define STDOUT 1 +%define STDERR 2 + +section .rodata + failure_msg: db 0x5b, 0x1b, 0x5b, 0x33, 0x31, 0x6d, 0x46\ + 0x41, 0x49, 0x4c, 0x45, 0x44, 0x1b, 0x5b\ + 0x30, 0x6d, 0x5d, 0x20, 0x00 + failure_msglen: equ $ - failure_msg + julian_msg: db "Julian must be greader than offset.", 10, 0 + julian_msglen: equ $ - julian_msg + +%macro CHECK_OPENBSD 0 +%ifdef OpenBSD +section .note.openbsd.ident note + dd 8, 4, 1 + db "OpenBSD", 0 + dd 0 +%endif +%endmacro + +%macro EEXIT 1 + mov rax, SYS_exit + mov rdi, %1 + syscall +%endmacro + +%macro FAIL_MSG 0 + mov rax, SYS_write + mov rdi, STDERR + mov rsi, failure_msg + mov rdx, failure_msglen + syscall +%endmacro + +%macro FAILJULIAN 0 + FAIL_MSG + mov rax, SYS_write + mov rdi, STDERR + mov rsi, julian_msg + mov rdx, julian_msglen + syscall + EEXIT EXIT_FAILURE +%endmacro + +%endif ;MACROS_S diff --git a/syscalls.s b/syscalls.s @@ -0,0 +1,16 @@ +; See LICENSE file for copyright and license details. + +%ifndef SYSCALLS_S +%define SYSCALLS_S + +%ifdef Linux + %define SYS_exit 60 + %define SYS_write 1 + %define SYS_gettimeofday 96 +%elif OpenBSD + %define SYS_exit 1 + %define SYS_write 4 + %define SYS_gettimeofday 67 +%endif + +%endif ;SYSCALLS_S