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kvisc/vm/in/MISC
julianb0 b38eab6d76
vm
2019-08-16 13:29:38 +02:00

82 lines
1.8 KiB
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# The OS/K Team licenses this file to you under the MIT license.
# See the LICENSE file in the project root for more information.
#---------------------------------------------------------------------------#
# Debugging instructions #
#---------------------------------------------------------------------------#
#
# Breakpoint instruction (BREAK)
#
# (cause register dump on standard error)
# (wait for user input before proceeeding)
#
break 0
#
# Toggles instruction dumping (DUMP)
#
# (toggles instruction dumping)
#
dump 0
#---------------------------------------------------------------------------#
# Misc. instructions #
#---------------------------------------------------------------------------#
#
# Throws #UDF ("undefined behaviour")
#
udf 0
#
# Pause the CPU for a very short amount of time (PAUSE)
# Used in spin-type loops
#
pause 0
#
# Get timestamp in µseconds
#
utime 1
#
# $1 = seconds since start of month
# $2 = current month
# $3 = current year
#
ytime 0
#
# Clear all GPR registers except RBP/RSP
#
cls 0
#---------------------------------------------------------------------------#
# Byte-wise / bit-wise manipulation instructions #
#---------------------------------------------------------------------------#
#
# Byte/word/dword swap (xSWAP)
#
# Change endianness
#
bswap 2
wswap 2
dswap 2
#---------------------------------------------------------------------------#
# I/O instructions #
#---------------------------------------------------------------------------#
#
# Send a character to standard output (PRN)
#
prn 1
#
# Scan a character from standard input (SCAN)
#
scan 1