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[/] [openrisc/] [trunk/] [gnu-stable/] [gdb-7.2/] [sim/] [testsuite/] [frv-elf/] [cache.s] - Blame information for rev 861

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Line No. Rev Author Line
1 330 jeremybenn
# run with --memory-region 0xff000000,4 --memory-region 0xfe000000,00404000
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; Exit with return code
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        .macro exit rc
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        setlos.p        #1,gr7
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        setlos          \rc,gr8
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        tira            gr0,#0
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        .endm
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; Pass the test case
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        .macro pass
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pass:
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        setlos.p        #5,gr10
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        setlos          #1,gr8
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        setlos          #5,gr7
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        sethi.p         %hi(passmsg),gr9
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        setlo           %lo(passmsg),gr9
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        tira            gr0,#0
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        exit            #0
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        .endm
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; Fail the testcase
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        .macro fail
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fail\@:
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        setlos.p        #5,gr10
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        setlos          #1,gr8
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        setlos          #5,gr7
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        sethi.p         %hi(failmsg),gr9
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        setlo           %lo(failmsg),gr9
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        tira            gr0,#0
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        exit            #1
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        .endm
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        .data
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failmsg:
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        .ascii "fail\n"
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passmsg:
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        .ascii "pass\n"
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        .text
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        .global _start
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_start:
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        movsg           hsr0,gr10       ; enable insn and data caches
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        sethi.p         0xc800,gr11     ; in copy-back mode
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        setlo           0x0000,gr11
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        or              gr10,gr11,gr10
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        movgs           gr10,hsr0
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        sethi.p         0x7,sp
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        setlo           0x0000,sp
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        ; fill the cache
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        sethi.p         %hi(done1),gr10
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        setlo           %lo(done1),gr10
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        movgs           gr10,lr
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        setlos.p        0x1000,gr10
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        setlos          0x0,gr11
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        movgs           gr10,lcr
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write1: st.p            gr11,@(sp,gr11)
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        addi.p          gr11,4,gr11
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        bctrlr.p        1,0
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        bra             write1
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done1:
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        ; read it back
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        sethi.p         %hi(done2),gr10
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        setlo           %lo(done2),gr10
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        movgs           gr10,lr
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        setlos.p        0x1000,gr10
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        setlos          0x0,gr11
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        movgs           gr10,lcr
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read1:  ld              @(sp,gr11),gr12
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        cmp             gr11,gr12,icc0
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        bne             icc0,1,fail
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        addi.p          gr11,4,gr11
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        bctrlr.p        1,0
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        bra             read1
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done2:
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        ; fill the cache twice
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        sethi.p         %hi(done3),gr10
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        setlo           %lo(done3),gr10
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        movgs           gr10,lr
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        setlos.p        0x2000,gr10
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        setlos          0x0,gr11
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        movgs           gr10,lcr
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write3: st.p            gr11,@(sp,gr11)
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        addi.p          gr11,4,gr11
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        bctrlr.p        1,0
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        bra             write3
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done3:
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        ; read it back
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        sethi.p         %hi(done4),gr10
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        setlo           %lo(done4),gr10
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        movgs           gr10,lr
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        setlos.p        0x2000,gr10
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        setlos          0x0,gr11
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        movgs           gr10,lcr
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read4:  ld              @(sp,gr11),gr12
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        cmp             gr11,gr12,icc0
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        bne             icc0,1,fail
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        addi.p          gr11,4,gr11
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        bctrlr.p        1,0
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        bra             read4
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done4:
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        ; read it back in reverse
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        sethi.p         %hi(done5),gr10
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        setlo           %lo(done5),gr10
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        movgs           gr10,lr
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        setlos.p        0x2000,gr10
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        setlos          0x7ffc,gr11
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        movgs           gr10,lcr
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read5:  ld              @(sp,gr11),gr12
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        cmp             gr11,gr12,icc0
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        bne             icc0,1,fail
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        subi.p          gr11,4,gr11
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        bctrlr.p        1,0
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        bra             read5
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done5:
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        ; access data and insns in non-cache areas
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        sethi.p         0x8038,gr11             ; bctrlr 0,0
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        setlo           0x2000,gr11
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        sethi.p         0xff00,gr10             ; documented area
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        setlo           0x0000,gr10
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        sti             gr11,@(gr10,0)
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        jmpl            @(gr10,gr0)
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        ;  enable RAM mode
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        movsg           hsr0,gr10
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        sethi.p         0x0040,gr12
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        setlo           0x0000,gr12
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        or              gr10,gr12,gr10
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        movgs           gr10,hsr0
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        sethi.p         0xfe00,gr10             ; documented area
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        setlo           0x0400,gr10
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        sti             gr11,@(gr10,0)
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        jmpl            @(gr10,gr0)
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        sethi.p         0xfe40,gr10             ; documented area
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        setlo           0x0400,gr10
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        sti             gr11,@(gr10,0)
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        dcf             @(gr10,gr0)
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        jmpl            @(gr10,gr0)
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        sethi.p         0x0007,gr10             ; non RAM area
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        setlo           0x0000,gr10
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        sti             gr11,@(gr10,0)
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        jmpl            @(gr10,gr0)
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        sethi.p         0xfe00,gr10             ; insn RAM area
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        setlo           0x0000,gr10
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        sti             gr11,@(gr10,0)
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        jmpl            @(gr10,gr0)
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        sethi.p         0xfe40,gr10             ; data RAM area
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        setlo           0x0000,gr10
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        sti             gr11,@(gr10,0)
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        dcf             @(gr10,gr0)
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        jmpl            @(gr10,gr0)
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        pass
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fail:
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        fail

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