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[/] [scarts/] [trunk/] [toolchain/] [scarts-gdb/] [gdb-6.8/] [sim/] [testsuite/] [frv-elf/] [cache.s] - Rev 26
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# run with --memory-region 0xff000000,4 --memory-region 0xfe000000,00404000 ; Exit with return code .macro exit rc setlos.p #1,gr7 setlos \rc,gr8 tira gr0,#0 .endm ; Pass the test case .macro pass pass: setlos.p #5,gr10 setlos #1,gr8 setlos #5,gr7 sethi.p %hi(passmsg),gr9 setlo %lo(passmsg),gr9 tira gr0,#0 exit #0 .endm ; Fail the testcase .macro fail fail\@: setlos.p #5,gr10 setlos #1,gr8 setlos #5,gr7 sethi.p %hi(failmsg),gr9 setlo %lo(failmsg),gr9 tira gr0,#0 exit #1 .endm .data failmsg: .ascii "fail\n" passmsg: .ascii "pass\n" .text .global _start _start: movsg hsr0,gr10 ; enable insn and data caches sethi.p 0xc800,gr11 ; in copy-back mode setlo 0x0000,gr11 or gr10,gr11,gr10 movgs gr10,hsr0 sethi.p 0x7,sp setlo 0x0000,sp ; fill the cache sethi.p %hi(done1),gr10 setlo %lo(done1),gr10 movgs gr10,lr setlos.p 0x1000,gr10 setlos 0x0,gr11 movgs gr10,lcr write1: st.p gr11,@(sp,gr11) addi.p gr11,4,gr11 bctrlr.p 1,0 bra write1 done1: ; read it back sethi.p %hi(done2),gr10 setlo %lo(done2),gr10 movgs gr10,lr setlos.p 0x1000,gr10 setlos 0x0,gr11 movgs gr10,lcr read1: ld @(sp,gr11),gr12 cmp gr11,gr12,icc0 bne icc0,1,fail addi.p gr11,4,gr11 bctrlr.p 1,0 bra read1 done2: ; fill the cache twice sethi.p %hi(done3),gr10 setlo %lo(done3),gr10 movgs gr10,lr setlos.p 0x2000,gr10 setlos 0x0,gr11 movgs gr10,lcr write3: st.p gr11,@(sp,gr11) addi.p gr11,4,gr11 bctrlr.p 1,0 bra write3 done3: ; read it back sethi.p %hi(done4),gr10 setlo %lo(done4),gr10 movgs gr10,lr setlos.p 0x2000,gr10 setlos 0x0,gr11 movgs gr10,lcr read4: ld @(sp,gr11),gr12 cmp gr11,gr12,icc0 bne icc0,1,fail addi.p gr11,4,gr11 bctrlr.p 1,0 bra read4 done4: ; read it back in reverse sethi.p %hi(done5),gr10 setlo %lo(done5),gr10 movgs gr10,lr setlos.p 0x2000,gr10 setlos 0x7ffc,gr11 movgs gr10,lcr read5: ld @(sp,gr11),gr12 cmp gr11,gr12,icc0 bne icc0,1,fail subi.p gr11,4,gr11 bctrlr.p 1,0 bra read5 done5: ; access data and insns in non-cache areas sethi.p 0x8038,gr11 ; bctrlr 0,0 setlo 0x2000,gr11 sethi.p 0xff00,gr10 ; documented area setlo 0x0000,gr10 sti gr11,@(gr10,0) jmpl @(gr10,gr0) ; enable RAM mode movsg hsr0,gr10 sethi.p 0x0040,gr12 setlo 0x0000,gr12 or gr10,gr12,gr10 movgs gr10,hsr0 sethi.p 0xfe00,gr10 ; documented area setlo 0x0400,gr10 sti gr11,@(gr10,0) jmpl @(gr10,gr0) sethi.p 0xfe40,gr10 ; documented area setlo 0x0400,gr10 sti gr11,@(gr10,0) dcf @(gr10,gr0) jmpl @(gr10,gr0) sethi.p 0x0007,gr10 ; non RAM area setlo 0x0000,gr10 sti gr11,@(gr10,0) jmpl @(gr10,gr0) sethi.p 0xfe00,gr10 ; insn RAM area setlo 0x0000,gr10 sti gr11,@(gr10,0) jmpl @(gr10,gr0) sethi.p 0xfe40,gr10 ; data RAM area setlo 0x0000,gr10 sti gr11,@(gr10,0) dcf @(gr10,gr0) jmpl @(gr10,gr0) pass fail: fail