diff options
Diffstat (limited to 'sim/mips/vr.igen')
-rw-r--r-- | sim/mips/vr.igen | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/sim/mips/vr.igen b/sim/mips/vr.igen deleted file mode 100644 index 863bb55..0000000 --- a/sim/mips/vr.igen +++ /dev/null @@ -1,78 +0,0 @@ -// -*- C -*- -// -// NEC specific instructions -// - -// Integer Instructions -// -------------------- -// -// MulAcc is the Multiply Accumulator. -// This register is mapped on the the HI and LO registers. -// Upper 32 bits of MulAcc is mapped on to lower 32 bits of HI register. -// Lower 32 bits of MulAcc is mapped on to lower 32 bits of LO register. - - -:function:::unsigned64:MulAcc: -*vr4100: -{ - unsigned64 result = U8_4 (HI, LO); - return result; -} - -:function:::void:SET_MulAcc:unsigned64 value -*vr4100: -{ - /* 64 bit specific */ - *AL4_8 (&HI) = VH4_8 (value); - *AL4_8 (&LO) = VL4_8 (value); -} - -:function:::signed64:SignedMultiply:signed32 l, signed32 r -*vr4100: -{ - signed64 result = (signed64) l * (signed64) r; - return result; -} - -:function:::unsigned64:UnsignedMultiply:unsigned32 l, unsigned32 r -*vr4100: -{ - unsigned64 result = (unsigned64) l * (unsigned64) r; - return result; -} - -:function:::unsigned64:Low32Bits:unsigned64 value -*vr4100: -{ - unsigned64 result = (signed64) (signed32) VL4_8 (value); - return result; -} - -:function:::unsigned64:High32Bits:unsigned64 value -*vr4100: -{ - unsigned64 result = (signed64) (signed32) VH4_8 (value); - return result; -} - - - -// Multiply, Accumulate -000000,5.RS,5.RT,00000,00000,101000::64::MAC -"mac r<RS>, r<RT>" -*vr4100: -{ - SET_MulAcc (SD_, MulAcc (SD_) + SignedMultiply (SD_, GPR[RS], GPR[RT])); -} - - -// D-Multiply, Accumulate -000000,5.RS,5.RT,00000,00000,101001::64::DMAC -"dmac r<RS>, r<RT>" -*vr4100: -{ - LO = LO + SignedMultiply (SD_, GPR[RS], GPR[RT]); -} - - - |