diff options
| -rw-r--r-- | .gitignore | 2 | ||||
| -rw-r--r-- | main.s | 50 |
2 files changed, 37 insertions, 15 deletions
diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..1041415 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +life +*.o @@ -64,15 +64,16 @@ DRAWCELL_ARGLEN = 8 + BYTES_PER_PIXEL -.equ EV_REL, 1 -.equ EV_ACQ, 2 -.equ EV_EXIT, 4 -.equ EV_RESTART, 8 # re-read file and draw life again +.equ EV_REL, 1 +.equ EV_ACQ, 2 +.equ EV_EXIT, 4 +.equ EV_RESTART, 8 # re-read file and draw life again +.equ EV_PRINT, 16 -.equ M_OPEN, 0001 -.equ M_MMAP, 0002 -.equ M_ICANON, 0004 -.equ M_GRAPHICS, 0010 +.equ M_OPEN, 0001 +.equ M_MMAP, 0002 +.equ M_ICANON, 0004 +.equ M_GRAPHICS, 0010 .text .globl _start @@ -106,8 +107,8 @@ _start: # check if arg is a directory - subl $64, %esp - movl $SYS_STAT, %eax + subl $128, %esp + movl $SYS_STAT64, %eax movl 8(%ebp), %ebx movl %esp, %ecx int $0x80 @@ -115,10 +116,10 @@ _start: testl %eax, %eax jnz stat_error - movw 8(%esp), %ax - andw $S_IFMT, %ax - subw $S_IFDIR, %ax - testw %ax, %ax + movl 16(%esp), %eax + andl $S_IFMT, %eax + subl $S_IFDIR, %eax + testl %eax, %eax jnz 1f pushl $0 @@ -478,6 +479,10 @@ life_loop: testb %al, %al jnz event_handler + movl (pause), %eax + testl %eax, %eax + jnz life_loop + resume: copy_row $life_map + START, $life_map + BOTTOM @@ -575,6 +580,8 @@ event_handler: jnz release_display testb $EV_RESTART, %al jnz read_file + testb $EV_PRINT, %al + jnz export # is case when life is started, when its virtual terminal is nonactive # when this vt activated, process recieve SIGUSR2 signal @@ -621,6 +628,9 @@ restore: movl (desc), %ebx int $0x80 +export: + jmp resume + exit: movl %eax, %ebx movl $SYS_EXIT, %eax @@ -786,6 +796,16 @@ poll_loop: movb $EV_RESTART, (event) 1: + cmpb $' ', %al + jne 1f + notl (pause) + + 1: + cmpb $'p', %al + jne 1f + movb $EV_PRINT, (event) + + 1: jmp poll_loop # some functions to output error message @@ -992,4 +1012,4 @@ timespec: .comm prog_mode, 1 .comm pollfd, 8 .comm child_pid, 4 - +.comm pause, 4 |