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[/] [openrisc/] [trunk/] [gnu-stable/] [gdb-7.2/] [sim/] [testsuite/] [d10v-elf/] [t-sub2w.s] - Blame information for rev 841

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Line No. Rev Author Line
1 330 jeremybenn
.include "t-macros.i"
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        start
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;;  The d10v implements negated addition for subtraction
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        .macro check_sub2w s x y r c v
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        ;; clear carry
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        ldi     r6,#0x8004
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        mvtc    r6,cr0
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        ;; load opnds
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        ld2w    r6, @(1f,r0)
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        ld2w    r8, @(2f,r0)
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        .data
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1:      .long   \x
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2:      .long   \y
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        .text
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        ;; subtract
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        SUB2W   r6, r8
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        ;; verify result
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        ld2w    r10, @(1f,r0)
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        .data
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1:      .long   \r
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        .text
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        cmpeq   r6, r10
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        brf0f   2f
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        cmpeq   r7, r11
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        brf0t   3f
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2:      ldi     r4, 1
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        ldi     r0, \s
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        trap    15
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3:
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        ;; verify carry
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        mvfc    r6, cr0
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        and3    r6, r6, #1
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        cmpeqi  r6, #\c
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        brf0t   1f
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        ldi     r4, 1
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        ldi     r0, \s
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        trap    15
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1:
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        .endm
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check_sub2w 1 0x00000000 0x00000000  0x00000000 1 0
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check_sub2w 2 0x00000000 0x00000001  0xffffffff 0 0
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check_sub2w 3 0x00000001 0x00000000  0x00000001 1 0
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check_sub2w 3 0x00000001 0x00000001  0x00000000 1 0
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check_sub2w 5 0x00000000 0x80000000  0x80000000 0 1
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check_sub2w 6 0x80000000 0x00000001  0x7fffffff 1 1
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check_sub2w 7 0x7fffffff 0x7fffffff  0x00000000 1 0
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        exit0

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