def x86_loopne(ctx, i):
c = conditional.condition(ctx, conditional.NE)
dst = operand.get(ctx, i, 0)
tmp0 = ctx.tmp(8)
ctx.emit(sub_(ctx.counter, imm(1, ctx.counter.size), ctx.counter))
ctx.emit(equ_(ctx.counter, imm(0, ctx.counter.size), tmp0))
ctx.emit(or_(c, tmp0, c))
ctx.emit(jcc_(c, dst))
def x86_loopne(ctx, i):
c = conditional.condition(ctx, conditional.NE)
dst = operand.get(ctx, i, 0)
tmp0 = ctx.tmp(8)
ctx.emit( sub_ (ctx.counter, imm(1, ctx.counter.size), ctx.counter))
ctx.emit( equ_ (ctx.counter, imm(0, ctx.counter.size), tmp0))
ctx.emit( or_ (c, tmp0, c))
ctx.emit( jcc_ (c, dst))
def conditional_mov(ctx, i, condition):
c = conditional.condition(ctx, condition)
value = None
if len(i.operands) == 1:
# source is the accumulator
value = ctx.accumulator
else:
value = operand.get(ctx, i, 1)
ctx.emit( jcc_ (c, 'do_mov'))
ctx.emit( jcc_ (imm(1, 8), 'done'))
ctx.emit('do_mov')
operand.set(ctx, i, 0, value, clear=True)
ctx.emit('done')
ctx.emit( nop_())
def conditional_set(ctx, i, condition):
c = conditional.condition(ctx, condition)
operand.set(ctx, i, 0, c)
def conditional_jump(ctx, i, condition):
c = conditional.condition(ctx, condition)
dst = operand.get(ctx, i, 0)
ctx.emit(jcc_(c, dst))
def conditional_jump(ctx, i, condition):
c = conditional.condition(ctx, condition)
dst = operand.get(ctx, i, 0)
ctx.emit( jcc_ (c, dst))
def conditional_set(ctx, i, condition):
c = conditional.condition(ctx, condition)
operand.set(ctx, i, 0, c)