azan

prayers time calculator written in nasm x86-64
git clone https://git.afify.dev/azan.git
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