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target-ppc: Introduce DFP Shift Significand

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Add emulation of the PowerPC Decimal Floating Point Shift Significand
Left Immediate (dscli[q][.]) and DFP Shift Significant Right Immediate
(dscri[q][.]) instructions.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Tom Musta 2014-04-21 15:55:21 -05:00 • committed by Alexander Graf
parent 297666eba0
commit 804e654a56
3 changed files with 109 additions and 0 deletions
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10
target-ppc/translate.c
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@ -8402,6 +8402,11 @@ GEN_DFP_T_B_Rc(dxex)
GEN_DFP_T_B_Rc(dxexq)
GEN_DFP_T_A_B_Rc(diex)
GEN_DFP_T_A_B_Rc(diexq)
GEN_DFP_T_FPR_I32_Rc(dscli, rA, DCM)
GEN_DFP_T_FPR_I32_Rc(dscliq, rA, DCM)
GEN_DFP_T_FPR_I32_Rc(dscri, rA, DCM)
GEN_DFP_T_FPR_I32_Rc(dscriq, rA, DCM)
/*** SPE extension ***/
/* Register moves */
@ -11375,6 +11380,11 @@ GEN_DFP_T_B_Rc(dxex, 0x02, 0x0b),
GEN_DFP_T_Bp_Rc(dxexq, 0x02, 0x0b),
GEN_DFP_T_A_B_Rc(diex, 0x02, 0x1b),
GEN_DFP_Tp_A_Bp_Rc(diexq, 0x02, 0x1b),
GEN_DFP_T_A_SH_Rc(dscli, 0x02, 0x02),
GEN_DFP_Tp_Ap_SH_Rc(dscliq, 0x02, 0x02),
GEN_DFP_T_A_SH_Rc(dscri, 0x02, 0x03),
GEN_DFP_Tp_Ap_SH_Rc(dscriq, 0x02, 0x03),
#undef GEN_SPE
#define GEN_SPE(name0, name1, opc2, opc3, inval0, inval1, type) \
GEN_OPCODE_DUAL(name0##_##name1, 0x04, opc2, opc3, inval0, inval1, type, PPC_NONE)