Now displays hours, minutes, seconds and miliseconds

wtfstopw.asm

@@ -26,30 +26,125 @@ syscall
 
 print_time:
 
+; updating ts_cur time
 mov rax, 228 ; clock_gettime
 mov rdi, 0 ; CLOCK_REALTIME
 mov rsi, ts_cur
 syscall
 
+mov rax, [tv_cur_us]
+mov rbx, [tv_start_us]
+sub rax, rbx
+cmp rax, 0
+jge print_time_us_cont
+; negativ result
+add rax, 1000000000
+mov rbx, [tv_cur_s]
+sub rbx, 1
+mov [tv_cur_s], rbx
+print_time_us_cont:
+xor rdx, rdx
+mov rcx, 100000
+div rcx
+; set the us char in timestr
+mov r8, timestr
+add r8, 10 ; r8 points on last char before \r
+mov r9, 4 ; r9 count the number of digits
+print_time_us_loop:
+	xor rdx, rdx
+	mov rcx, 10
+	div rcx
+	add dl, 0x30
+	mov [r8], dl
+	sub r8, 1
+	sub r9, 1
+	cmp r9, 0
+	jg print_time_us_loop
+
+; handling seconds, minutes & hours
 mov rax, [tv_cur_s]
 mov rbx, [tv_start_s]
 sub rax, rbx
-fifoo:
+; rax now contain elapsed seconds
+; filling timestr with seconds & minutes
+add rax, 3559
+
+xor rdx, rdx
+mov rcx, 10
+div rcx
+push rax
+mov rax, rdx
+add al, 0x30
+mov byte [timestr + 5], al
+
+pop rax
+xor rdx, rdx
+mov rcx, 6
+div rcx
+push rax
+mov rax, rdx
+add al, 0x30
+mov byte [timestr + 4], al
+
+pop rax
+xor rdx, rdx
+mov rcx, 10
+div rcx
+push rax
+mov rax, rdx
 add al, 0x30
-mov byte [msg], al
-;xor rax, rax
-;mov al, byte [msg]
-;mov rdi, [tv_cur_s]
-;mov rdx, [tv_start_s]
-;sub rdi, rdx
-;fifoo:
-;add rax, rdi
-;mov byte [msg], al
-
-mov rax, 1
-mov rdi, 1
-mov rsi, msg
-mov rdx, msglen
+mov byte [timestr + 2], al
+
+pop rax
+xor rdx, rdx
+mov rcx, 6
+div rcx
+push rax
+mov rax, rdx
+add al, 0x30
+mov byte[timestr + 1], al
+
+; filling the hours buffer
+; r8 will contain our digits counter : max is 8
+mov r8, 8
+pop rax
+print_time_hours_loop:
+	mov rcx, 10
+	xor rdx, rdx
+	div rcx
+	add dl, 0x30
+	cmp rax, 0
+	jne print_time_hours_print_mod
+	cmp rdx, 0
+	je print_time_hours_loop_end
+
+	print_time_hours_print_mod:
+	mov r9, hours
+	add r9, r8
+	mov byte [r9], dl
+	cmp r8, 0
+	je fault
+	sub r8, 1
+	cmp rax, 0
+	jne print_time_hours_loop
+print_time_hours_loop_end:
+
+; print hours + timestr
+add r8, 1
+cmp r8, 7
+jle print_time_hours_cont
+mov r8, 7
+print_time_hours_cont:
+mov r9, hours
+add r9, r8
+mov rcx, 9
+sub rcx, r8
+add rcx, timestrlen
+
+mov rax, 1 ; write
+mov rdi, 1 ; stdout
+mov rsi, r9
+mov rdx, rcx
 syscall
 
 sleep:
@@ -59,9 +154,15 @@ mov rsi, 0
 syscall
 jmp print_time
 
-mov rax, 60            ; sys_exit
-mov rdi, 0             ; 0
-syscall
+exit:
+	mov rax, 60 ; sys_exit
+	mov rdi, 0 ; OK
+	syscall
+fault:
+	mov rax, 60 ; sys_exit
+	mov rdi, 1 ; failure
+	syscall
+
 
 dumprax:
 	push rax
@@ -113,6 +214,10 @@ ts_start:
 msg:	db "0 Hello, world!", 10
 msglen: equ $ - msg
 
+hours: db "000000000"
+timestr: db ":00:00.0000", 0x0D
+timestrlen: equ $ - timestr
+
 digit: db "0"
 nl: db 10
 
@@ -120,15 +225,15 @@ ts_cur:
 	tv_cur_s dq 0
 	tv_cur_us dq 0
 
-;ts_sleep:
-;	tv_sleep_s dd 0,0
-;	tv_sleep_us dd 10000000,0 
+ts_sleep:
+	tv_sleep_s dd 0,0
+	tv_sleep_us dd 10000000,0 
 
 
-; 1/2s sleep
-ts_sleep:
-	tv_sleep_s dq 0
-	tv_sleep_us dq 500000000
+;; 1/2s sleep
+;ts_sleep:
+;	tv_sleep_s dq 0
+;	tv_sleep_us dq 500000000
 
 
 .end: