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Merge pull request #359 from lioncash/vfp

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vfp: Actually make the code somewhat readable
This commit is contained in:
bunnei 2014-12-28 21:54:53 -05:00
commit 9a403d7dfb
5 changed files with 1053 additions and 1664 deletions
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74
src/core/arm/dyncom/arm_dyncom_dec.cpp
View File

@ -28,9 +28,40 @@
#include "core/arm/dyncom/arm_dyncom_dec.h"
const ISEITEM arm_instruction[] = {
#define VFP_DECODE
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_DECODE
{"vmla", 4, ARMVFP2, 23, 27, 0x1C, 20, 21, 0x0, 9, 11, 0x5, 4, 4, 0},
{"vmls", 7, ARMVFP2, 28, 31, 0xF, 25, 27, 0x1, 23, 23, 1, 11, 11, 0, 8, 9, 0x2, 6, 6, 1, 4, 4, 0},
{"vnmla", 4, ARMVFP2, 23, 27, 0x1C, 20, 21, 0x1, 9, 11, 0x5, 4, 4, 0},
{"vnmla", 5, ARMVFP2, 23, 27, 0x1C, 20, 21, 0x2, 9, 11, 0x5, 6, 6, 1, 4, 4, 0},
{"vnmls", 5, ARMVFP2, 23, 27, 0x1C, 20, 21, 0x1, 9, 11, 0x5, 6, 6, 0, 4, 4, 0},
{"vnmul", 5, ARMVFP2, 23, 27, 0x1C, 20, 21, 0x2, 9, 11, 0x5, 6, 6, 1, 4, 4, 0},
{"vmul", 5, ARMVFP2, 23, 27, 0x1C, 20, 21, 0x2, 9, 11, 0x5, 6, 6, 0, 4, 4, 0},
{"vadd", 5, ARMVFP2, 23, 27, 0x1C, 20, 21, 0x3, 9, 11, 0x5, 6, 6, 0, 4, 4, 0},
{"vsub", 5, ARMVFP2, 23, 27, 0x1C, 20, 21, 0x3, 9, 11, 0x5, 6, 6, 1, 4, 4, 0},
{"vdiv", 5, ARMVFP2, 23, 27, 0x1D, 20, 21, 0x0, 9, 11, 0x5, 6, 6, 0, 4, 4, 0},
{"vmov(i)", 4, ARMVFP3, 23, 27, 0x1D, 20, 21, 0x3, 9, 11, 0x5, 4, 7, 0},
{"vmov(r)", 5, ARMVFP3, 23, 27, 0x1D, 16, 21, 0x30, 9, 11, 0x5, 6, 7, 1, 4, 4, 0},
{"vabs", 5, ARMVFP2, 23, 27, 0x1D, 16, 21, 0x30, 9, 11, 0x5, 6, 7, 3, 4, 4, 0},
{"vneg", 5, ARMVFP2, 23, 27, 0x1D, 17, 21, 0x18, 9, 11, 0x5, 6, 7, 1, 4, 4, 0},
{"vsqrt", 5, ARMVFP2, 23, 27, 0x1D, 16, 21, 0x31, 9, 11, 0x5, 6, 7, 3, 4, 4, 0},
{"vcmp", 5, ARMVFP2, 23, 27, 0x1D, 16, 21, 0x34, 9, 11, 0x5, 6, 6, 1, 4, 4, 0},
{"vcmp2", 5, ARMVFP2, 23, 27, 0x1D, 16, 21, 0x35, 9, 11, 0x5, 0, 6, 0x40},
{"vcvt(bds)", 5, ARMVFP2, 23, 27, 0x1D, 16, 21, 0x37, 9, 11, 0x5, 6, 7, 3, 4, 4, 0},
{"vcvt(bff)", 6, ARMVFP3, 23, 27, 0x1D, 19, 21, 0x7, 17, 17, 0x1, 9, 11,5, 6, 6, 1},
{"vcvt(bfi)", 5, ARMVFP2, 23, 27, 0x1D, 19, 21, 0x7, 9, 11, 0x5, 6, 6, 1, 4, 4, 0},
{"vmovbrs", 3, ARMVFP2, 21, 27, 0x70, 8, 11, 0xA, 0, 6, 0x10},
{"vmsr", 2, ARMVFP2, 20, 27, 0xEE, 0, 11, 0xA10},
{"vmovbrc", 4, ARMVFP2, 23, 27, 0x1C, 20, 20, 0x0, 8, 11, 0xB, 0,4,0x10},
{"vmrs", 2, ARMVFP2, 20, 27, 0xEF, 0, 11, 0xA10},
{"vmovbcr", 4, ARMVFP2, 24, 27, 0xE, 20, 20, 1, 8, 11, 0xB, 0,4,0x10},
{"vmovbrrss", 3, ARMVFP2, 21, 27, 0x62, 8, 11, 0xA, 4, 4, 1},
{"vmovbrrd", 3, ARMVFP2, 21, 27, 0x62, 6, 11, 0x2C, 4, 4, 1},
{"vstr", 3, ARMVFP2, 24, 27, 0xD, 20, 21, 0, 9, 11,5},
{"vpush", 3, ARMVFP2, 23, 27, 0x1A, 16, 21, 0x2D, 9, 11,5},
{"vstm", 3, ARMVFP2, 25, 27, 0x6, 20, 20, 0, 9, 11,5},
{"vpop", 3, ARMVFP2, 23, 27, 0x19, 16, 21, 0x3D, 9, 11,5},
{"vldr", 3, ARMVFP2, 24, 27, 0xD, 20, 21, 1, 9, 11,5},
{"vldm", 3, ARMVFP2, 25, 27, 0x6, 20, 20, 1, 9, 11,5},
{"srs" , 4 , 6 , 25, 31, 0x0000007c, 22, 22, 0x00000001, 16, 20, 0x0000000d, 8, 11, 0x00000005},
{"rfe" , 4 , 6 , 25, 31, 0x0000007c, 22, 22, 0x00000000, 20, 20, 0x00000001, 8, 11, 0x0000000a},
{"bkpt" , 2 , 3 , 20, 31, 0x00000e12, 4, 7, 0x00000007},
@ -187,9 +218,40 @@ const ISEITEM arm_instruction[] = {
};
const ISEITEM arm_exclusion_code[] = {
#define VFP_DECODE_EXCLUSION
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_DECODE_EXCLUSION
{"vmla", 0, ARMVFP2, 0},
{"vmls", 0, ARMVFP2, 0},
{"vnmla", 0, ARMVFP2, 0},
{"vnmla", 0, ARMVFP2, 0},
{"vnmls", 0, ARMVFP2, 0},
{"vnmul", 0, ARMVFP2, 0},
{"vmul", 0, ARMVFP2, 0},
{"vadd", 0, ARMVFP2, 0},
{"vsub", 0, ARMVFP2, 0},
{"vdiv", 0, ARMVFP2, 0},
{"vmov(i)", 0, ARMVFP3, 0},
{"vmov(r)", 0, ARMVFP3, 0},
{"vabs", 0, ARMVFP2, 0},
{"vneg", 0, ARMVFP2, 0},
{"vsqrt", 0, ARMVFP2, 0},
{"vcmp", 0, ARMVFP2, 0},
{"vcmp2", 0, ARMVFP2, 0},
{"vcvt(bff)", 0, ARMVFP3, 4, 4, 1},
{"vcvt(bds)", 0, ARMVFP2, 0},
{"vcvt(bfi)", 0, ARMVFP2, 0},
{"vmovbrs", 0, ARMVFP2, 0},
{"vmsr", 0, ARMVFP2, 0},
{"vmovbrc", 0, ARMVFP2, 0},
{"vmrs", 0, ARMVFP2, 0},
{"vmovbcr", 0, ARMVFP2, 0},
{"vmovbrrss", 0, ARMVFP2, 0},
{"vmovbrrd", 0, ARMVFP2, 0},
{"vstr", 0, ARMVFP2, 0},
{"vpush", 0, ARMVFP2, 0},
{"vstm", 0, ARMVFP2, 0},
{"vpop", 0, ARMVFP2, 0},
{"vldr", 0, ARMVFP2, 0},
{"vldm", 0, ARMVFP2, 0},
{"srs" , 0 , 6 , 0},
{"rfe" , 0 , 6 , 0},
{"bkpt" , 0 , 3 , 0},

45
src/core/arm/dyncom/arm_dyncom_interpreter.cpp
View File

@ -3363,9 +3363,40 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(uxtb16)(unsigned int inst, int index) { UN
typedef ARM_INST_PTR (*transop_fp_t)(unsigned int, int);
const transop_fp_t arm_instruction_trans[] = {
#define VFP_INTERPRETER_TABLE
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_INTERPRETER_TABLE
INTERPRETER_TRANSLATE(vmla),
INTERPRETER_TRANSLATE(vmls),
INTERPRETER_TRANSLATE(vnmla),
INTERPRETER_TRANSLATE(vnmla),
INTERPRETER_TRANSLATE(vnmls),
INTERPRETER_TRANSLATE(vnmul),
INTERPRETER_TRANSLATE(vmul),
INTERPRETER_TRANSLATE(vadd),
INTERPRETER_TRANSLATE(vsub),
INTERPRETER_TRANSLATE(vdiv),
INTERPRETER_TRANSLATE(vmovi),
INTERPRETER_TRANSLATE(vmovr),
INTERPRETER_TRANSLATE(vabs),
INTERPRETER_TRANSLATE(vneg),
INTERPRETER_TRANSLATE(vsqrt),
INTERPRETER_TRANSLATE(vcmp),
INTERPRETER_TRANSLATE(vcmp2),
INTERPRETER_TRANSLATE(vcvtbds),
INTERPRETER_TRANSLATE(vcvtbff),
INTERPRETER_TRANSLATE(vcvtbfi),
INTERPRETER_TRANSLATE(vmovbrs),
INTERPRETER_TRANSLATE(vmsr),
INTERPRETER_TRANSLATE(vmovbrc),
INTERPRETER_TRANSLATE(vmrs),
INTERPRETER_TRANSLATE(vmovbcr),
INTERPRETER_TRANSLATE(vmovbrrss),
INTERPRETER_TRANSLATE(vmovbrrd),
INTERPRETER_TRANSLATE(vstr),
INTERPRETER_TRANSLATE(vpush),
INTERPRETER_TRANSLATE(vstm),
INTERPRETER_TRANSLATE(vpop),
INTERPRETER_TRANSLATE(vldr),
INTERPRETER_TRANSLATE(vldm),
INTERPRETER_TRANSLATE(srs),
INTERPRETER_TRANSLATE(rfe),
INTERPRETER_TRANSLATE(bkpt),
@ -4207,9 +4238,11 @@ unsigned InterpreterMainLoop(ARMul_State* state)
// to a clunky switch statement.
#if defined __GNUC__ || defined __clang__
void *InstLabel[] = {
#define VFP_INTERPRETER_LABEL
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_INTERPRETER_LABEL
&&VMLA_INST, &&VMLS_INST, &&VNMLA_INST, &&VNMLA_INST, &&VNMLS_INST, &&VNMUL_INST, &&VMUL_INST, &&VADD_INST, &&VSUB_INST,
&&VDIV_INST, &&VMOVI_INST, &&VMOVR_INST, &&VABS_INST, &&VNEG_INST, &&VSQRT_INST, &&VCMP_INST, &&VCMP2_INST, &&VCVTBDS_INST,
&&VCVTBFF_INST, &&VCVTBFI_INST, &&VMOVBRS_INST, &&VMSR_INST, &&VMOVBRC_INST, &&VMRS_INST, &&VMOVBCR_INST, &&VMOVBRRSS_INST,
&&VMOVBRRD_INST, &&VSTR_INST, &&VPUSH_INST, &&VSTM_INST, &&VPOP_INST, &&VLDR_INST, &&VLDM_INST,
&&SRS_INST,&&RFE_INST,&&BKPT_INST,&&BLX_INST,&&CPS_INST,&&PLD_INST,&&SETEND_INST,&&CLREX_INST,&&REV16_INST,&&USAD8_INST,&&SXTB_INST,
&&UXTB_INST,&&SXTH_INST,&&SXTB16_INST,&&UXTH_INST,&&UXTB16_INST,&&CPY_INST,&&UXTAB_INST,&&SSUB8_INST,&&SHSUB8_INST,&&SSUBADDX_INST,
&&STREX_INST,&&STREXB_INST,&&SWP_INST,&&SWPB_INST,&&SSUB16_INST,&&SSAT16_INST,&&SHSUBADDX_INST,&&QSUBADDX_INST,&&SHADDSUBX_INST,

663
src/core/arm/skyeye_common/vfp/vfp.cpp
View File

@ -32,8 +32,7 @@
//ARMul_State* persistent_state; /* function calls from SoftFloat lib don't have an access to ARMul_state. */
unsigned
VFPInit (ARMul_State *state)
unsigned VFPInit(ARMul_State* state)
{
state->VFP[VFP_OFFSET(VFP_FPSID)] = VFP_FPSID_IMPLMEN<<24 | VFP_FPSID_SW<<23 | VFP_FPSID_SUBARCH<<16 |
VFP_FPSID_PARTNUM<<8 | VFP_FPSID_VARIANT<<4 | VFP_FPSID_REVISION;
@ -46,8 +45,7 @@ VFPInit (ARMul_State *state)
return 0;
}
unsigned
VFPMRC (ARMul_State * state, unsigned type, u32 instr, u32 * value)
unsigned VFPMRC(ARMul_State* state, unsigned type, u32 instr, u32* value)
{
/* MRC<c> <coproc>,<opc1>,<Rt>,<CRn>,<CRm>{,<opc2>} */
int CoProc = BITS (8, 11); /* 10 or 11 */
@ -61,10 +59,21 @@ VFPMRC (ARMul_State * state, unsigned type, u32 instr, u32 * value)
/* CRn/opc1 CRm/opc2 */
if (CoProc == 10 || CoProc == 11) {
#define VFP_MRC_TRANS
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_MRC_TRANS
if (CoProc == 10 || CoProc == 11)
{
if (OPC_1 == 0x0 && CRm == 0 && (OPC_2 & 0x3) == 0)
{
/* VMOV r to s */
/* Transfering Rt is not mandatory, as the value of interest is pointed by value */
VMOVBRS(state, BIT(20), Rt, BIT(7)|CRn<<1, value);
return ARMul_DONE;
}
if (OPC_1 == 0x7 && CRm == 0 && OPC_2 == 0)
{
VMRS(state, CRn, Rt, value);
return ARMul_DONE;
}
}
DEBUG("Can't identify %x, CoProc %x, OPC_1 %x, Rt %x, CRn %x, CRm %x, OPC_2 %x\n",
instr, CoProc, OPC_1, Rt, CRn, CRm, OPC_2);
@ -72,8 +81,7 @@ VFPMRC (ARMul_State * state, unsigned type, u32 instr, u32 * value)
return ARMul_CANT;
}
unsigned
VFPMCR (ARMul_State * state, unsigned type, u32 instr, u32 value)
unsigned VFPMCR(ARMul_State* state, unsigned type, u32 instr, u32 value)
{
/* MCR<c> <coproc>,<opc1>,<Rt>,<CRn>,<CRm>{,<opc2>} */
int CoProc = BITS (8, 11); /* 10 or 11 */
@ -86,10 +94,33 @@ VFPMCR (ARMul_State * state, unsigned type, u32 instr, u32 value)
/* TODO check access permission */
/* CRn/opc1 CRm/opc2 */
if (CoProc == 10 || CoProc == 11) {
#define VFP_MCR_TRANS
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_MCR_TRANS
if (CoProc == 10 || CoProc == 11)
{
if (OPC_1 == 0x0 && CRm == 0 && (OPC_2 & 0x3) == 0)
{
/* VMOV s to r */
/* Transfering Rt is not mandatory, as the value of interest is pointed by value */
VMOVBRS(state, BIT(20), Rt, BIT(7)|CRn<<1, &value);
return ARMul_DONE;
}
if (OPC_1 == 0x7 && CRm == 0 && OPC_2 == 0)
{
VMSR(state, CRn, Rt);
return ARMul_DONE;
}
if ((OPC_1 & 0x4) == 0 && CoProc == 11 && CRm == 0)
{
VFP_DEBUG_UNIMPLEMENTED(VMOVBRC);
return ARMul_DONE;
}
if (CoProc == 11 && CRm == 0)
{
VFP_DEBUG_UNIMPLEMENTED(VMOVBCR);
return ARMul_DONE;
}
}
DEBUG("Can't identify %x, CoProc %x, OPC_1 %x, Rt %x, CRn %x, CRm %x, OPC_2 %x\n",
instr, CoProc, OPC_1, Rt, CRn, CRm, OPC_2);
@ -97,8 +128,7 @@ VFPMCR (ARMul_State * state, unsigned type, u32 instr, u32 value)
return ARMul_CANT;
}
unsigned
VFPMRRC (ARMul_State * state, unsigned type, u32 instr, u32 * value1, u32 * value2)
unsigned VFPMRRC(ARMul_State* state, unsigned type, u32 instr, u32* value1, u32* value2)
{
/* MCRR<c> <coproc>,<opc1>,<Rt>,<Rt2>,<CRm> */
int CoProc = BITS (8, 11); /* 10 or 11 */
@ -107,10 +137,20 @@ VFPMRRC (ARMul_State * state, unsigned type, u32 instr, u32 * value1, u32 * valu
int Rt2 = BITS (16, 19);
int CRm = BITS (0, 3);
if (CoProc == 10 || CoProc == 11) {
#define VFP_MRRC_TRANS
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_MRRC_TRANS
if (CoProc == 10 || CoProc == 11)
{
if (CoProc == 10 && (OPC_1 & 0xD) == 1)
{
VFP_DEBUG_UNIMPLEMENTED(VMOVBRRSS);
return ARMul_DONE;
}
if (CoProc == 11 && (OPC_1 & 0xD) == 1)
{
/* Transfering Rt and Rt2 is not mandatory, as the value of interest is pointed by value1 and value2 */
VMOVBRRD(state, BIT(20), Rt, Rt2, BIT(5)<<4|CRm, value1, value2);
return ARMul_DONE;
}
}
DEBUG("Can't identify %x, CoProc %x, OPC_1 %x, Rt %x, Rt2 %x, CRm %x\n",
instr, CoProc, OPC_1, Rt, Rt2, CRm);
@ -118,8 +158,7 @@ VFPMRRC (ARMul_State * state, unsigned type, u32 instr, u32 * value1, u32 * valu
return ARMul_CANT;
}
unsigned
VFPMCRR (ARMul_State * state, unsigned type, u32 instr, u32 value1, u32 value2)
unsigned VFPMCRR(ARMul_State* state, unsigned type, u32 instr, u32 value1, u32 value2)
{
/* MCRR<c> <coproc>,<opc1>,<Rt>,<Rt2>,<CRm> */
int CoProc = BITS (8, 11); /* 10 or 11 */
@ -132,10 +171,20 @@ VFPMCRR (ARMul_State * state, unsigned type, u32 instr, u32 value1, u32 value2)
/* CRn/opc1 CRm/opc2 */
if (CoProc == 11 || CoProc == 10) {
#define VFP_MCRR_TRANS
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_MCRR_TRANS
if (CoProc == 11 || CoProc == 10)
{
if (CoProc == 10 && (OPC_1 & 0xD) == 1)
{
VFP_DEBUG_UNIMPLEMENTED(VMOVBRRSS);
return ARMul_DONE;
}
if (CoProc == 11 && (OPC_1 & 0xD) == 1)
{
/* Transfering Rt and Rt2 is not mandatory, as the value of interest is pointed by value1 and value2 */
VMOVBRRD(state, BIT(20), Rt, Rt2, BIT(5)<<4|CRm, &value1, &value2);
return ARMul_DONE;
}
}
DEBUG("Can't identify %x, CoProc %x, OPC_1 %x, Rt %x, Rt2 %x, CRm %x\n",
instr, CoProc, OPC_1, Rt, Rt2, CRm);
@ -143,8 +192,7 @@ VFPMCRR (ARMul_State * state, unsigned type, u32 instr, u32 value1, u32 value2)
return ARMul_CANT;
}
unsigned
VFPSTC (ARMul_State * state, unsigned type, u32 instr, u32 * value)
unsigned VFPSTC(ARMul_State* state, unsigned type, u32 instr, u32 * value)
{
/* STC{L}<c> <coproc>,<CRd>,[<Rn>],<option> */
int CoProc = BITS (8, 11); /* 10 or 11 */
@ -175,9 +223,17 @@ VFPSTC (ARMul_State * state, unsigned type, u32 instr, u32 * value)
}
#endif
#define VFP_STC_TRANS
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_STC_TRANS
if (P == 1 && W == 0)
{
return VSTR(state, type, instr, value);
}
if (P == 1 && U == 0 && W == 1 && Rn == 0xD)
{
return VPUSH(state, type, instr, value);
}
return VSTM(state, type, instr, value);
}
DEBUG("Can't identify %x, CoProc %x, CRd %x, Rn %x, imm8 %x, P %x, U %x, D %x, W %x\n",
instr, CoProc, CRd, Rn, imm8, P, U, D, W);
@ -185,8 +241,7 @@ VFPSTC (ARMul_State * state, unsigned type, u32 instr, u32 * value)
return ARMul_CANT;
}
unsigned
VFPLDC (ARMul_State * state, unsigned type, u32 instr, u32 value)
unsigned VFPLDC(ARMul_State* state, unsigned type, u32 instr, u32 value)
{
/* LDC{L}<c> <coproc>,<CRd>,[<Rn>] */
int CoProc = BITS (8, 11); /* 10 or 11 */
@ -204,10 +259,19 @@ VFPLDC (ARMul_State * state, unsigned type, u32 instr, u32 value)
DEBUG("In %s, UNDEFINED\n", __FUNCTION__);
exit(-1);
}
if (CoProc == 10 || CoProc == 11) {
#define VFP_LDC_TRANS
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_LDC_TRANS
if (CoProc == 10 || CoProc == 11)
{
if (P == 1 && W == 0)
{
return VLDR(state, type, instr, value);
}
if (P == 0 && U == 1 && W == 1 && Rn == 0xD)
{
return VPOP(state, type, instr, value);
}
return VLDM(state, type, instr, value);
}
DEBUG("Can't identify %x, CoProc %x, CRd %x, Rn %x, imm8 %x, P %x, U %x, D %x, W %x\n",
instr, CoProc, CRd, Rn, imm8, P, U, D, W);
@ -215,8 +279,7 @@ VFPLDC (ARMul_State * state, unsigned type, u32 instr, u32 value)
return ARMul_CANT;
}
unsigned
VFPCDP (ARMul_State * state, unsigned type, u32 instr)
unsigned VFPCDP(ARMul_State* state, unsigned type, u32 instr)
{
/* CDP<c> <coproc>,<opc1>,<CRd>,<CRn>,<CRm>,<opc2> */
int CoProc = BITS (8, 11); /* 10 or 11 */
@ -275,10 +338,83 @@ VFPCDP (ARMul_State * state, unsigned type, u32 instr)
/* CRn/opc1 CRm/opc2 */
if (CoProc == 10 || CoProc == 11) {
#define VFP_CDP_TRANS
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_CDP_TRANS
if (CoProc == 10 || CoProc == 11)
{
if ((OPC_1 & 0xB) == 0 && (OPC_2 & 0x2) == 0)
DBG("VMLA :\n");
if ((OPC_1 & 0xB) == 0 && (OPC_2 & 0x2) == 2)
DBG("VMLS :\n");
if ((OPC_1 & 0xB) == 1 && (OPC_2 & 0x2) == 2)
DBG("VNMLA :\n");
if ((OPC_1 & 0xB) == 1 && (OPC_2 & 0x2) == 0)
DBG("VNMLS :\n");
if ((OPC_1 & 0xB) == 2 && (OPC_2 & 0x2) == 2)
DBG("VNMUL :\n");
if ((OPC_1 & 0xB) == 2 && (OPC_2 & 0x2) == 0)
DBG("VMUL :\n");
if ((OPC_1 & 0xB) == 3 && (OPC_2 & 0x2) == 0)
DBG("VADD :\n");
if ((OPC_1 & 0xB) == 3 && (OPC_2 & 0x2) == 2)
DBG("VSUB :\n");
if ((OPC_1 & 0xB) == 0xA && (OPC_2 & 0x2) == 0)
DBG("VDIV :\n");
if ((OPC_1 & 0xB) == 0xB && BITS(4, 7) == 0)
{
unsigned int single = BIT(8) == 0;
unsigned int d = (single ? BITS(12,15)<<1 | BIT(22) : BITS(12,15) | BIT(22)<<4);
unsigned int imm;
instr = BITS(16, 19) << 4 | BITS(0, 3); /* FIXME dirty workaround to get a correct imm */
if (single)
imm = BIT(7)<<31 | (BIT(6)==0)<<30 | (BIT(6) ? 0x1f : 0)<<25 | BITS(0, 5)<<19;
else
imm = BIT(7)<<31 | (BIT(6)==0)<<30 | (BIT(6) ? 0xff : 0)<<22 | BITS(0, 5)<<16;
VMOVI(state, single, d, imm);
return ARMul_DONE;
}
if ((OPC_1 & 0xB) == 0xB && CRn == 0 && (OPC_2 & 0x6) == 0x2)
{
unsigned int single = BIT(8) == 0;
unsigned int d = (single ? BITS(12,15)<<1 | BIT(22) : BITS(12,15) | BIT(22)<<4);
unsigned int m = (single ? BITS( 0, 3)<<1 | BIT( 5) : BITS( 0, 3) | BIT( 5)<<4);;
VMOVR(state, single, d, m);
return ARMul_DONE;
}
if ((OPC_1 & 0xB) == 0xB && CRn == 0 && (OPC_2 & 0x7) == 6)
DBG("VABS :\n");
if ((OPC_1 & 0xB) == 0xB && CRn == 1 && (OPC_2 & 0x7) == 2)
DBG("VNEG :\n");
if ((OPC_1 & 0xB) == 0xB && CRn == 1 && (OPC_2 & 0x7) == 6)
DBG("VSQRT :\n");
if ((OPC_1 & 0xB) == 0xB && CRn == 4 && (OPC_2 & 0x2) == 2)
DBG("VCMP(1) :\n");
if ((OPC_1 & 0xB) == 0xB && CRn == 5 && (OPC_2 & 0x2) == 2 && CRm == 0)
DBG("VCMP(2) :\n");
if ((OPC_1 & 0xB) == 0xB && CRn == 7 && (OPC_2 & 0x6) == 6)
DBG("VCVT(BDS) :\n");
if ((OPC_1 & 0xB) == 0xB && CRn >= 0xA && (OPC_2 & 0x2) == 2)
DBG("VCVT(BFF) :\n");
if ((OPC_1 & 0xB) == 0xB && CRn > 7 && (OPC_2 & 0x2) == 2)
DBG("VCVT(BFI) :\n");
int exceptions = 0;
if (CoProc == 10)
@ -296,23 +432,93 @@ VFPCDP (ARMul_State * state, unsigned type, u32 instr)
/* ----------- MRC ------------ */
#define VFP_MRC_IMPL
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_MRC_IMPL
#define VFP_MRRC_IMPL
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_MRRC_IMPL
void VMOVBRS(ARMul_State* state, ARMword to_arm, ARMword t, ARMword n, ARMword* value)
{
DBG("VMOV(BRS) :\n");
if (to_arm)
{
DBG("\tr%d <= s%d=[%x]\n", t, n, state->ExtReg[n]);
*value = state->ExtReg[n];
}
else
{
DBG("\ts%d <= r%d=[%x]\n", n, t, *value);
state->ExtReg[n] = *value;
}
}
void VMRS(ARMul_State* state, ARMword reg, ARMword Rt, ARMword* value)
{
DBG("VMRS :");
if (reg == 1)
{
if (Rt != 15)
{
*value = state->VFP[VFP_OFFSET(VFP_FPSCR)];
DBG("\tr%d <= fpscr[%08x]\n", Rt, state->VFP[VFP_OFFSET(VFP_FPSCR)]);
}
else
{
*value = state->VFP[VFP_OFFSET(VFP_FPSCR)] ;
DBG("\tflags <= fpscr[%1xxxxxxxx]\n", state->VFP[VFP_OFFSET(VFP_FPSCR)]>>28);
}
}
else
{
switch (reg)
{
case 0:
*value = state->VFP[VFP_OFFSET(VFP_FPSID)];
DBG("\tr%d <= fpsid[%08x]\n", Rt, state->VFP[VFP_OFFSET(VFP_FPSID)]);
break;
case 6:
/* MVFR1, VFPv3 only ? */
DBG("\tr%d <= MVFR1 unimplemented\n", Rt);
break;
case 7:
/* MVFR0, VFPv3 only? */
DBG("\tr%d <= MVFR0 unimplemented\n", Rt);
break;
case 8:
*value = state->VFP[VFP_OFFSET(VFP_FPEXC)];
DBG("\tr%d <= fpexc[%08x]\n", Rt, state->VFP[VFP_OFFSET(VFP_FPEXC)]);
break;
default:
DBG("\tSUBARCHITECTURE DEFINED\n");
break;
}
}
}
void VMOVBRRD(ARMul_State* state, ARMword to_arm, ARMword t, ARMword t2, ARMword n, ARMword* value1, ARMword* value2)
{
DBG("VMOV(BRRD) :\n");
if (to_arm)
{
DBG("\tr[%d-%d] <= s[%d-%d]=[%x-%x]\n", t2, t, n*2+1, n*2, state->ExtReg[n*2+1], state->ExtReg[n*2]);
*value2 = state->ExtReg[n*2+1];
*value1 = state->ExtReg[n*2];
}
else
{
DBG("\ts[%d-%d] <= r[%d-%d]=[%x-%x]\n", n*2+1, n*2, t2, t, *value2, *value1);
state->ExtReg[n*2+1] = *value2;
state->ExtReg[n*2] = *value1;
}
}
/* ----------- MCR ------------ */
#define VFP_MCR_IMPL
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_MCR_IMPL
#define VFP_MCRR_IMPL
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_MCRR_IMPL
void VMSR(ARMul_State* state, ARMword reg, ARMword Rt)
{
if (reg == 1)
{
DBG("VMSR :\tfpscr <= r%d=[%x]\n", Rt, state->Reg[Rt]);
state->VFP[VFP_OFFSET(VFP_FPSCR)] = state->Reg[Rt];
}
else if (reg == 8)
{
DBG("VMSR :\tfpexc <= r%d=[%x]\n", Rt, state->Reg[Rt]);
state->VFP[VFP_OFFSET(VFP_FPEXC)] = state->Reg[Rt];
}
}
/* Memory operation are not inlined, as old Interpreter and Fast interpreter
don't have the same memory operation interface.
@ -322,21 +528,342 @@ VFPCDP (ARMul_State * state, unsigned type, u32 instr)
of vfp instructions in old interpreter and fast interpreter are separate. */
/* ----------- STC ------------ */
#define VFP_STC_IMPL
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_STC_IMPL
int VSTR(ARMul_State* state, int type, ARMword instr, ARMword* value)
{
static int i = 0;
static int single_reg, add, d, n, imm32, regs;
if (type == ARMul_FIRST)
{
single_reg = BIT(8) == 0; /* Double precision */
add = BIT(23); /* */
imm32 = BITS(0,7)<<2; /* may not be used */
d = single_reg ? BITS(12, 15)<<1|BIT(22) : BIT(22)<<4|BITS(12, 15); /* Base register */
n = BITS(16, 19); /* destination register */
DBG("VSTR :\n");
i = 0;
regs = 1;
return ARMul_DONE;
}
else if (type == ARMul_DATA)
{
if (single_reg)
{
*value = state->ExtReg[d+i];
DBG("\taddr[?] <= s%d=[%x]\n", d+i, state->ExtReg[d+i]);
i++;
if (i < regs)
return ARMul_INC;
else
return ARMul_DONE;
}
else
{
/* FIXME Careful of endianness, may need to rework this */
*value = state->ExtReg[d*2+i];
DBG("\taddr[?] <= s[%d]=[%x]\n", d*2+i, state->ExtReg[d*2+i]);
i++;
if (i < regs*2)
return ARMul_INC;
else
return ARMul_DONE;
}
}
return -1;
}
int VPUSH(ARMul_State* state, int type, ARMword instr, ARMword* value)
{
static int i = 0;
static int single_regs, add, wback, d, n, imm32, regs;
if (type == ARMul_FIRST)
{
single_regs = BIT(8) == 0; /* Single precision */
d = single_regs ? BITS(12, 15)<<1|BIT(22) : BIT(22)<<4|BITS(12, 15); /* Base register */
imm32 = BITS(0,7)<<2; /* may not be used */
regs = single_regs ? BITS(0, 7) : BITS(1, 7); /* FSTMX if regs is odd */
DBG("VPUSH :\n");
DBG("\tsp[%x]", state->Reg[R13]);
state->Reg[R13] = state->Reg[R13] - imm32;
DBG("=>[%x]\n", state->Reg[R13]);
i = 0;
return ARMul_DONE;
}
else if (type == ARMul_DATA)
{
if (single_regs)
{
*value = state->ExtReg[d + i];
DBG("\taddr[?] <= s%d=[%x]\n", d+i, state->ExtReg[d + i]);
i++;
if (i < regs)
return ARMul_INC;
else
return ARMul_DONE;
}
else
{
/* FIXME Careful of endianness, may need to rework this */
*value = state->ExtReg[d*2 + i];
DBG("\taddr[?] <= s[%d]=[%x]\n", d*2 + i, state->ExtReg[d*2 + i]);
i++;
if (i < regs*2)
return ARMul_INC;
else
return ARMul_DONE;
}
}
return -1;
}
int VSTM(ARMul_State* state, int type, ARMword instr, ARMword* value)
{
static int i = 0;
static int single_regs, add, wback, d, n, imm32, regs;
if (type == ARMul_FIRST)
{
single_regs = BIT(8) == 0; /* Single precision */
add = BIT(23); /* */
wback = BIT(21); /* write-back */
d = single_regs ? BITS(12, 15)<<1|BIT(22) : BIT(22)<<4|BITS(12, 15); /* Base register */
n = BITS(16, 19); /* destination register */
imm32 = BITS(0,7) * 4; /* may not be used */
regs = single_regs ? BITS(0, 7) : BITS(0, 7)>>1; /* FSTMX if regs is odd */
DBG("VSTM :\n");
if (wback) {
state->Reg[n] = (add ? state->Reg[n] + imm32 : state->Reg[n] - imm32);
DBG("\twback r%d[%x]\n", n, state->Reg[n]);
}
i = 0;
return ARMul_DONE;
}
else if (type == ARMul_DATA)
{
if (single_regs)
{
*value = state->ExtReg[d + i];
DBG("\taddr[?] <= s%d=[%x]\n", d+i, state->ExtReg[d + i]);
i++;
if (i < regs)
return ARMul_INC;
else
return ARMul_DONE;
}
else
{
/* FIXME Careful of endianness, may need to rework this */
*value = state->ExtReg[d*2 + i];
DBG("\taddr[?] <= s[%d]=[%x]\n", d*2 + i, state->ExtReg[d*2 + i]);
i++;
if (i < regs*2)
return ARMul_INC;
else
return ARMul_DONE;
}
}
return -1;
}
/* ----------- LDC ------------ */
#define VFP_LDC_IMPL
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_LDC_IMPL
int VPOP(ARMul_State* state, int type, ARMword instr, ARMword value)
{
static int i = 0;
static int single_regs, add, wback, d, n, imm32, regs;
if (type == ARMul_FIRST)
{
single_regs = BIT(8) == 0; /* Single precision */
d = single_regs ? BITS(12, 15)<<1|BIT(22) : BIT(22)<<4|BITS(12, 15); /* Base register */
imm32 = BITS(0,7)<<2; /* may not be used */
regs = single_regs ? BITS(0, 7) : BITS(1, 7); /* FLDMX if regs is odd */
DBG("VPOP :\n");
DBG("\tsp[%x]", state->Reg[R13]);
state->Reg[R13] = state->Reg[R13] + imm32;
DBG("=>[%x]\n", state->Reg[R13]);
i = 0;
return ARMul_DONE;
}
else if (type == ARMul_TRANSFER)
{
return ARMul_DONE;
}
else if (type == ARMul_DATA)
{
if (single_regs)
{
state->ExtReg[d + i] = value;
DBG("\ts%d <= [%x]\n", d + i, value);
i++;
if (i < regs)
return ARMul_INC;
else
return ARMul_DONE;
}
else
{
/* FIXME Careful of endianness, may need to rework this */
state->ExtReg[d*2 + i] = value;
DBG("\ts%d <= [%x]\n", d*2 + i, value);
i++;
if (i < regs*2)
return ARMul_INC;
else
return ARMul_DONE;
}
}
return -1;
}
int VLDR(ARMul_State* state, int type, ARMword instr, ARMword value)
{
static int i = 0;
static int single_reg, add, d, n, imm32, regs;
if (type == ARMul_FIRST)
{
single_reg = BIT(8) == 0; /* Double precision */
add = BIT(23); /* */
imm32 = BITS(0,7)<<2; /* may not be used */
d = single_reg ? BITS(12, 15)<<1|BIT(22) : BIT(22)<<4|BITS(12, 15); /* Base register */
n = BITS(16, 19); /* destination register */
DBG("VLDR :\n");
i = 0;
regs = 1;
return ARMul_DONE;
}
else if (type == ARMul_TRANSFER)
{
return ARMul_DONE;
}
else if (type == ARMul_DATA)
{
if (single_reg)
{
state->ExtReg[d+i] = value;
DBG("\ts%d <= [%x]\n", d+i, value);
i++;
if (i < regs)
return ARMul_INC;
else
return ARMul_DONE;
}
else
{
/* FIXME Careful of endianness, may need to rework this */
state->ExtReg[d*2+i] = value;
DBG("\ts[%d] <= [%x]\n", d*2+i, value);
i++;
if (i < regs*2)
return ARMul_INC;
else
return ARMul_DONE;
}
}
return -1;
}
int VLDM(ARMul_State* state, int type, ARMword instr, ARMword value)
{
static int i = 0;
static int single_regs, add, wback, d, n, imm32, regs;
if (type == ARMul_FIRST)
{
single_regs = BIT(8) == 0; /* Single precision */
add = BIT(23); /* */
wback = BIT(21); /* write-back */
d = single_regs ? BITS(12, 15)<<1|BIT(22) : BIT(22)<<4|BITS(12, 15); /* Base register */
n = BITS(16, 19); /* destination register */
imm32 = BITS(0,7) * 4; /* may not be used */
regs = single_regs ? BITS(0, 7) : BITS(0, 7)>>1; /* FLDMX if regs is odd */
DBG("VLDM :\n");
if (wback) {
state->Reg[n] = (add ? state->Reg[n] + imm32 : state->Reg[n] - imm32);
DBG("\twback r%d[%x]\n", n, state->Reg[n]);
}
i = 0;
return ARMul_DONE;
}
else if (type == ARMul_DATA)
{
if (single_regs)
{
state->ExtReg[d + i] = value;
DBG("\ts%d <= [%x] addr[?]\n", d+i, state->ExtReg[d + i]);
i++;
if (i < regs)
return ARMul_INC;
else
return ARMul_DONE;
}
else
{
/* FIXME Careful of endianness, may need to rework this */
state->ExtReg[d*2 + i] = value;
DBG("\ts[%d] <= [%x] addr[?]\n", d*2 + i, state->ExtReg[d*2 + i]);
i++;
if (i < regs*2)
return ARMul_INC;
else
return ARMul_DONE;
}
}
return -1;
}
/* ----------- CDP ------------ */
#define VFP_CDP_IMPL
#include "core/arm/skyeye_common/vfp/vfpinstr.cpp"
#undef VFP_CDP_IMPL
void VMOVI(ARMul_State* state, ARMword single, ARMword d, ARMword imm)
{
DBG("VMOV(I) :\n");
if (single)
{
DBG("\ts%d <= [%x]\n", d, imm);
state->ExtReg[d] = imm;
}
else
{
/* Check endian please */
DBG("\ts[%d-%d] <= [%x-%x]\n", d*2+1, d*2, imm, 0);
state->ExtReg[d*2+1] = imm;
state->ExtReg[d*2] = 0;
}
}
void VMOVR(ARMul_State* state, ARMword single, ARMword d, ARMword m)
{
DBG("VMOV(R) :\n");
if (single)
{
DBG("\ts%d <= s%d[%x]\n", d, m, state->ExtReg[m]);
state->ExtReg[d] = state->ExtReg[m];
}
else
{
/* Check endian please */
DBG("\ts[%d-%d] <= s[%d-%d][%x-%x]\n", d*2+1, d*2, m*2+1, m*2, state->ExtReg[m*2+1], state->ExtReg[m*2]);
state->ExtReg[d*2+1] = state->ExtReg[m*2+1];
state->ExtReg[d*2] = state->ExtReg[m*2];
}
}
/* Miscellaneous functions */
int32_t vfp_get_float(arm_core_t* state, unsigned int reg)
@ -366,8 +893,6 @@ void vfp_put_double(arm_core_t* state, uint64_t val, unsigned int reg)
state->ExtReg[reg*2+1] = (uint32_t) (val>>32);
}
/*
* Process bitmask of exception conditions. (from vfpmodule.c)
*/

6
src/core/arm/skyeye_common/vfp/vfp.h
View File

@ -27,6 +27,12 @@
#include "core/arm/skyeye_common/vfp/vfp_helper.h" /* for references to cdp SoftFloat functions */
#define VFP_DEBUG_TRANSLATE DBG("in func %s, %x\n", __FUNCTION__, inst);
#define VFP_DEBUG_UNIMPLEMENTED(x) printf("in func %s, " #x " unimplemented\n", __FUNCTION__); exit(-1);
#define VFP_DEBUG_UNTESTED(x) printf("in func %s, " #x " untested\n", __FUNCTION__);
#define CHECK_VFP_ENABLED
#define CHECK_VFP_CDP_RET vfp_raise_exceptions(cpu, ret, inst_cream->instr, cpu->VFP[VFP_OFFSET(VFP_FPSCR)]); //if (ret == -1) {printf("VFP CDP FAILURE %x\n", inst_cream->instr); exit(-1);}
unsigned VFPInit (ARMul_State *state);
unsigned VFPMRC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value);
unsigned VFPMCR (ARMul_State * state, unsigned type, ARMword instr, ARMword value);

1917
src/core/arm/skyeye_common/vfp/vfpinstr.cpp
View File

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