1.include "t-macros.i"
2
3	start
4
5;;  The d10v implements negated addition for subtraction
6
7	.macro check_sub s x y r c
8	;; clear carry
9	ldi	r6,#0x8004
10	mvtc	r6,cr0
11	;; subtract
12	ldi	r10,#\x
13	ldi	r11,#\y
14	sub	r10, r11
15	;; verify result
16	ldi	r12, #\r
17	cmpeq	r10, r12
18	brf0t	1f
19	ldi	r6, 1
20	ldi	r2, #\s
21	trap	15
221:
23	;; verify carry
24	mvfc	r6, cr0
25	and3	r6, r6, #1
26	cmpeqi	r6, #\c
27	brf0t	1f
28	ldi	r6, 1
29	ldi	r2, #\s
30	trap	15
311:
32	.endm
33
34check_sub 1 0x0000 0x0000  0x0000  1
35check_sub 2 0x0000 0x0001  0xffff  0
36check_sub 3 0x0001 0x0000  0x0001  1
37check_sub 4 0x0001 0x0001  0x0000  1
38check_sub 5 0x0000 0x8000  0x8000  0
39check_sub 6 0x8000 0x0001  0x7fff  1
40check_sub 7 0x7fff 0x7fff  0x0000  1
41
42	exit0
43