From 0930024b886e9102ba73c8e15a81d1e253ff141b Mon Sep 17 00:00:00 2001 From: Korey Sewell Date: Sun, 7 May 2006 14:09:19 -0400 Subject: Minor changes for FP ... MIPS now works for floating-point programs... Now we are to the point where more benchmarks and instruction-coverage is necessary to totally verify/validate correct operation across all MIPS instructions arch/mips/isa_traits.hh: fix for reading double values ... must rearrange bits before using void* to read double. configs/test/hello_mips: real hello world MIPS binary --HG-- extra : convert_revision : 153de1f8a830882c6972bd0bdb56da818f614def --- arch/mips/isa_traits.hh | 6 ++++-- configs/test/hello_mips | Bin 837718 -> 837626 bytes 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/mips/isa_traits.hh b/arch/mips/isa_traits.hh index 3879eaf40..74947c6dd 100644 --- a/arch/mips/isa_traits.hh +++ b/arch/mips/isa_traits.hh @@ -190,6 +190,7 @@ namespace MipsISA }; typedef float FloatReg; + typedef double FPVal; typedef uint32_t FloatReg32; typedef uint64_t FloatReg64; @@ -230,7 +231,8 @@ namespace MipsISA return *(float *) float_ptr; case DoubleWidth: - void *double_ptr = ®s[floatReg]; + uint64_t double_val = (FloatReg64)regs[floatReg + 1] << 32 | regs[floatReg]; + void *double_ptr = &double_val; return *(double *) double_ptr; default: @@ -255,7 +257,7 @@ namespace MipsISA } } - Fault setReg(int floatReg, const FloatReg &val, int width) + Fault setReg(int floatReg, const FPVal &val, int width) { switch(width) diff --git a/configs/test/hello_mips b/configs/test/hello_mips index 33d9fbb58..a3db001ec 100755 Binary files a/configs/test/hello_mips and b/configs/test/hello_mips differ -- cgit v1.2.3