derek.holloway
7502bf64a4
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169 lines
2.9 KiB
Plaintext
169 lines
2.9 KiB
Plaintext
# mach: frv fr500 fr550
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# sim: --memory-region 0xff000000,4 --memory-region 0xfe000000,00404000
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# xfail: "crashes with bad write" *-*
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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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