175 lines
3.2 KiB
Plaintext
175 lines
3.2 KiB
Plaintext
# The OS/K Team licenses this file to you under the MIT license.
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# See the LICENSE file in the project root for more information.
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#---------------------------------------------------------------------------#
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# Debugging instructions #
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#---------------------------------------------------------------------------#
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#
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# Breakpoint instruction (BREAK)
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#
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# (cause register dump on standard error)
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# (wait for user input before proceeeding)
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#
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break
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#
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# Enable/disable instruction dumping (DUMP)
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#
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# IF $1 == 0 THEN
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# (disable instruction dumping)
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# ELSE
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# (enable instruction dumping)
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# FI
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#
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dump ri
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#---------------------------------------------------------------------------#
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# Misc. instructions #
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#---------------------------------------------------------------------------#
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#
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# Do nothing (NOOP)
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#
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# (nothing)
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#
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# Throws:
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# (nothing)
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#
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# Preserves all flags
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#
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nop
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#
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# Pause the CPU for a very short amount of time (PAUSE)
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# Used in spin-like loops
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#
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pause
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#
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# Pause the CPU for a relatively long time (XPAUSE)
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#
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# Throws:
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# #SYS if not in supervisor mode
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#
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xpause
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#
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# Get timestamp in seconds
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#
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time r
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#
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# $1 = seconds since start of month
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# $2 = current month
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# $3 = current year
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#
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ytime r r r
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#
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# Get timestamp in µseconds
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#
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utime r
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#
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# CPU Identification Number
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#
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# Does nothing (for now)
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#
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cpuid
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#---------------------------------------------------------------------------#
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# Clean-up misc. instructions #
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#---------------------------------------------------------------------------#
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#
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# Clear all GPR registers except RBP/RSP
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#
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cls
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#
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# Clear base registers except RBP/RSP (CLR)
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#
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clr
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#
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# Clear argument registers (CLA)
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#
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cla
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#
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# Clear nonvolatile registers (CLN)
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#
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cln
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#---------------------------------------------------------------------------#
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# Flag manipulation instructions #
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#---------------------------------------------------------------------------#
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#
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# Clear or set interrupt flag (CLI/STI)
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#
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# Throws:
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# #SYS if not in supervisor mode
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#
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cli
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sti
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#
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# Clear or set direction flag (CLD/STD)
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#
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cld
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std
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#
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# Complement, clear or set carry flag (CMC/CLC/STC)
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#
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cmc
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clc
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stc
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#---------------------------------------------------------------------------#
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# Byte-wise / bit-wise manipulation instructions #
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#---------------------------------------------------------------------------#
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#
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# Byte/word/dword swap (xSWAP)
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#
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# Change endianness
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#
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bswap r r
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wswap r r
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dswap r r
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#---------------------------------------------------------------------------#
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# I/O instructions #
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#---------------------------------------------------------------------------#
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#
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# Send a character to standard output (PRN)
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#
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prn rim
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#
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# Print a string to standard output (PRN)
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#
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# COMPARE([%1], 0)
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#
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# IF (ZF == 0) THEN
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# PRN([%1])
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# IF (DF == 0) THEN
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# %1 = %1 + 1
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# ELSE
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# %1 = %1 - 1
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# FI
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# FI
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#
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#
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prns r
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#
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# Scan a character from standard input (SCAN)
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#
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scan r
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