kvisc/vm/in/JMP

# The OS/K Team licenses this file to you under the MIT license.
# See the LICENSE file in the project root for more information.

#---------------------------------------------------------------------------#
# Jump instructions                                                         #
#---------------------------------------------------------------------------#

#
# Jump (JMP) instruction
#
#       EIP = $1
#
jmp 1

jeaxz 1
jecxz 1

jeaxnz 1
jecxnz 1

#
# ECX-dependent jump (LOOP) instruction
#
#       IF (ECX > 0) THEN
#           ECX = ECX - 1
#           EIP = $1
#       FI  
#
loop 1

#
# Conditional absolute jumps (branches) (BCH)
#
#       IF (COND) THEN
#           EIP = $3
#       FI
#

# reg == 0
bzr 2

# reg != 0
bnz 2

# (s)reg < 0
bltz 2

# r1 == r2
beq 3

# r1 != r2
bne 3

# (s)r1 < (s)r2
blt 3

# r1 < r2
bltu 3

# (s)r1 <= (s)r2
blte 3

# r1 <= r2
blteu 3