divh.cgs

gdb-6.8 Linux下的调试程序 最新版本

# v850 divh
# mach: all

	.include "testutils.inc"

# Regular division - check signs

	seti	6, r1
	seti	45, r2
	divh	r1, r2

	flags	0
	reg	r1, 6
	reg	r2, 7

	seti	-6, r1
	seti	45, r2
	divh	r1, r2

	flags	s
	reg	r1, -6
	reg	r2, -7

	seti	6, r1
	seti	-45, r2
	divh	r1, r2

	flags	s
	reg	r1, 6
	reg	r2, -7

	seti	-6, r1
	seti	-45, r2
	divh	r1, r2

	flags	0
	reg	r1, -6
	reg	r2, 7

# Only the lower half of the dividend is used

	seti	0x0000fffa, r1
	seti	-45, r2
	divh	r1, r2

	flags	0
	reg	r1, 0x0000fffa
	reg	r2, 7

# If the data is divhided by zero, OV=1 and the quotient is undefined.
# According to NEC, the S and Z flags, and the output registers, are
# unchanged.

	noflags
	seti	0, r1
	seti	45, r2
	seti	67, r3
	divh	r1, r2

	flags	v
	reg	r2, 45

	allflags
	seti	0, r1
	seti	45, r2
	seti	67, r3
	divh	r1, r2

	flags	sat + c + v + s + z
	reg	r2, 45

# Zero / (N!=0) => normal

	noflags
	seti	45, r1
	seti	0, r2
	seti	67, r3
	divh	r1, r2

	flags	z
	reg	r1, 45
	reg	r2, 0

# Test for regular overflow

	noflags
	seti	-1, r1
	seti	0x80000000, r2
	divh	r1, r2

	flags	v + s
	reg	r1, -1
	reg	r2, 0x80000000


	pass