8b58e81077
better parsing of sh commands (copied from jos sh) cat: read from 1 if no args sbrk system call, but untested getpid system call moved locks in keyboard intr, but why do we get intr w. null characters from keyboard?
21 lines
382 B
C
21 lines
382 B
C
#define SYS_fork 1
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#define SYS_exit 2
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#define SYS_wait 3
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#define SYS_pipe 4
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#define SYS_write 5
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#define SYS_read 6
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#define SYS_close 7
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#define SYS_kill 9
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#define SYS_exec 10
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#define SYS_open 11
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#define SYS_mknod 12
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#define SYS_unlink 13
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#define SYS_fstat 14
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#define SYS_link 15
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#define SYS_mkdir 16
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#define SYS_chdir 17
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#define SYS_dup 18
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#define SYS_getpid 19
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#define SYS_sbrk 20
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