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.include "t-macros.i"

        start

;;  The d10v implements negated addition for subtraction

        .macro check_subi s x y r c v

        ;; clear carry

        ldi     r6,#0x8004

        mvtc    r6,cr0

        ;; subtract

        ldi     r10,#\x

        SUBI    r10,#\y

        ;; verify result

        ldi     r11, #\r

        cmpeq   r10, r11

        brf0t   1f

        ldi     r6, 1

        ldi     r2, \s

        trap    15

1:

        ;; verify carry

        mvfc    r6, cr0

        and3    r6, r6, #1

        cmpeqi  r6, #\c

        brf0t   1f

        ldi     r6, 1

        ldi     r2, \s

        trap    15

1:

        .endm

        check_subi 1 0000  0x0000  0xfff0 00 ;;  0 - 0x10

        check_subi 2 0x0000  0x0001  0xffff 0 0

        check_subi 3 0x0001  0x0000  0xfff1 0 0

        check_subi 4 0x0001  0x0001  0x0000 1 0

        check_subi 5 0x8000  0x0001  0x7fff 1 1

        exit0