mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-30 06:50:57 +00:00
136fbf654d
I found that there are many spelling errors in the comments of qemu/target/ppc. I used spellcheck to check the spelling errors and found some errors in the folder. Signed-off-by: zhaolichang <zhaolichang@huawei.com> Reviewed-by: David Edmondson <david.edmondson@oracle.com> Message-Id: <20201009064449.2336-3-zhaolichang@huawei.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
219 lines
7.8 KiB
C
219 lines
7.8 KiB
C
/*
|
|
* PowerPC internal definitions for qemu.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef PPC_INTERNAL_H
|
|
#define PPC_INTERNAL_H
|
|
|
|
#define FUNC_MASK(name, ret_type, size, max_val) \
|
|
static inline ret_type name(uint##size##_t start, \
|
|
uint##size##_t end) \
|
|
{ \
|
|
ret_type ret, max_bit = size - 1; \
|
|
\
|
|
if (likely(start == 0)) { \
|
|
ret = max_val << (max_bit - end); \
|
|
} else if (likely(end == max_bit)) { \
|
|
ret = max_val >> start; \
|
|
} else { \
|
|
ret = (((uint##size##_t)(-1ULL)) >> (start)) ^ \
|
|
(((uint##size##_t)(-1ULL) >> (end)) >> 1); \
|
|
if (unlikely(start > end)) { \
|
|
return ~ret; \
|
|
} \
|
|
} \
|
|
\
|
|
return ret; \
|
|
}
|
|
|
|
#if defined(TARGET_PPC64)
|
|
FUNC_MASK(MASK, target_ulong, 64, UINT64_MAX);
|
|
#else
|
|
FUNC_MASK(MASK, target_ulong, 32, UINT32_MAX);
|
|
#endif
|
|
FUNC_MASK(mask_u32, uint32_t, 32, UINT32_MAX);
|
|
FUNC_MASK(mask_u64, uint64_t, 64, UINT64_MAX);
|
|
|
|
/*****************************************************************************/
|
|
/*** Instruction decoding ***/
|
|
#define EXTRACT_HELPER(name, shift, nb) \
|
|
static inline uint32_t name(uint32_t opcode) \
|
|
{ \
|
|
return extract32(opcode, shift, nb); \
|
|
}
|
|
|
|
#define EXTRACT_SHELPER(name, shift, nb) \
|
|
static inline int32_t name(uint32_t opcode) \
|
|
{ \
|
|
return sextract32(opcode, shift, nb); \
|
|
}
|
|
|
|
#define EXTRACT_HELPER_SPLIT(name, shift1, nb1, shift2, nb2) \
|
|
static inline uint32_t name(uint32_t opcode) \
|
|
{ \
|
|
return extract32(opcode, shift1, nb1) << nb2 | \
|
|
extract32(opcode, shift2, nb2); \
|
|
}
|
|
|
|
#define EXTRACT_HELPER_SPLIT_3(name, \
|
|
d0_bits, shift_op_d0, shift_d0, \
|
|
d1_bits, shift_op_d1, shift_d1, \
|
|
d2_bits, shift_op_d2, shift_d2) \
|
|
static inline int16_t name(uint32_t opcode) \
|
|
{ \
|
|
return \
|
|
(((opcode >> (shift_op_d0)) & ((1 << (d0_bits)) - 1)) << (shift_d0)) | \
|
|
(((opcode >> (shift_op_d1)) & ((1 << (d1_bits)) - 1)) << (shift_d1)) | \
|
|
(((opcode >> (shift_op_d2)) & ((1 << (d2_bits)) - 1)) << (shift_d2)); \
|
|
}
|
|
|
|
|
|
/* Opcode part 1 */
|
|
EXTRACT_HELPER(opc1, 26, 6);
|
|
/* Opcode part 2 */
|
|
EXTRACT_HELPER(opc2, 1, 5);
|
|
/* Opcode part 3 */
|
|
EXTRACT_HELPER(opc3, 6, 5);
|
|
/* Opcode part 4 */
|
|
EXTRACT_HELPER(opc4, 16, 5);
|
|
/* Update Cr0 flags */
|
|
EXTRACT_HELPER(Rc, 0, 1);
|
|
/* Update Cr6 flags (Altivec) */
|
|
EXTRACT_HELPER(Rc21, 10, 1);
|
|
/* Destination */
|
|
EXTRACT_HELPER(rD, 21, 5);
|
|
/* Source */
|
|
EXTRACT_HELPER(rS, 21, 5);
|
|
/* First operand */
|
|
EXTRACT_HELPER(rA, 16, 5);
|
|
/* Second operand */
|
|
EXTRACT_HELPER(rB, 11, 5);
|
|
/* Third operand */
|
|
EXTRACT_HELPER(rC, 6, 5);
|
|
/*** Get CRn ***/
|
|
EXTRACT_HELPER(crfD, 23, 3);
|
|
EXTRACT_HELPER(BF, 23, 3);
|
|
EXTRACT_HELPER(crfS, 18, 3);
|
|
EXTRACT_HELPER(crbD, 21, 5);
|
|
EXTRACT_HELPER(crbA, 16, 5);
|
|
EXTRACT_HELPER(crbB, 11, 5);
|
|
/* SPR / TBL */
|
|
EXTRACT_HELPER(_SPR, 11, 10);
|
|
static inline uint32_t SPR(uint32_t opcode)
|
|
{
|
|
uint32_t sprn = _SPR(opcode);
|
|
|
|
return ((sprn >> 5) & 0x1F) | ((sprn & 0x1F) << 5);
|
|
}
|
|
/*** Get constants ***/
|
|
/* 16 bits signed immediate value */
|
|
EXTRACT_SHELPER(SIMM, 0, 16);
|
|
/* 16 bits unsigned immediate value */
|
|
EXTRACT_HELPER(UIMM, 0, 16);
|
|
/* 5 bits signed immediate value */
|
|
EXTRACT_SHELPER(SIMM5, 16, 5);
|
|
/* 5 bits signed immediate value */
|
|
EXTRACT_HELPER(UIMM5, 16, 5);
|
|
/* 4 bits unsigned immediate value */
|
|
EXTRACT_HELPER(UIMM4, 16, 4);
|
|
/* Bit count */
|
|
EXTRACT_HELPER(NB, 11, 5);
|
|
/* Shift count */
|
|
EXTRACT_HELPER(SH, 11, 5);
|
|
/* lwat/stwat/ldat/lwat */
|
|
EXTRACT_HELPER(FC, 11, 5);
|
|
/* Vector shift count */
|
|
EXTRACT_HELPER(VSH, 6, 4);
|
|
/* Mask start */
|
|
EXTRACT_HELPER(MB, 6, 5);
|
|
/* Mask end */
|
|
EXTRACT_HELPER(ME, 1, 5);
|
|
/* Trap operand */
|
|
EXTRACT_HELPER(TO, 21, 5);
|
|
|
|
EXTRACT_HELPER(CRM, 12, 8);
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
EXTRACT_HELPER(SR, 16, 4);
|
|
#endif
|
|
|
|
/* mtfsf/mtfsfi */
|
|
EXTRACT_HELPER(FPBF, 23, 3);
|
|
EXTRACT_HELPER(FPIMM, 12, 4);
|
|
EXTRACT_HELPER(FPL, 25, 1);
|
|
EXTRACT_HELPER(FPFLM, 17, 8);
|
|
EXTRACT_HELPER(FPW, 16, 1);
|
|
|
|
/* mffscrni */
|
|
EXTRACT_HELPER(RM, 11, 2);
|
|
|
|
/* addpcis */
|
|
EXTRACT_HELPER_SPLIT_3(DX, 10, 6, 6, 5, 16, 1, 1, 0, 0)
|
|
#if defined(TARGET_PPC64)
|
|
/* darn */
|
|
EXTRACT_HELPER(L, 16, 2);
|
|
#endif
|
|
|
|
/*** Jump target decoding ***/
|
|
/* Immediate address */
|
|
static inline target_ulong LI(uint32_t opcode)
|
|
{
|
|
return (opcode >> 0) & 0x03FFFFFC;
|
|
}
|
|
|
|
static inline uint32_t BD(uint32_t opcode)
|
|
{
|
|
return (opcode >> 0) & 0xFFFC;
|
|
}
|
|
|
|
EXTRACT_HELPER(BO, 21, 5);
|
|
EXTRACT_HELPER(BI, 16, 5);
|
|
/* Absolute/relative address */
|
|
EXTRACT_HELPER(AA, 1, 1);
|
|
/* Link */
|
|
EXTRACT_HELPER(LK, 0, 1);
|
|
|
|
/* DFP Z22-form */
|
|
EXTRACT_HELPER(DCM, 10, 6)
|
|
|
|
/* DFP Z23-form */
|
|
EXTRACT_HELPER(RMC, 9, 2)
|
|
EXTRACT_HELPER(Rrm, 16, 1)
|
|
|
|
EXTRACT_HELPER_SPLIT(DQxT, 3, 1, 21, 5);
|
|
EXTRACT_HELPER_SPLIT(xT, 0, 1, 21, 5);
|
|
EXTRACT_HELPER_SPLIT(xS, 0, 1, 21, 5);
|
|
EXTRACT_HELPER_SPLIT(xA, 2, 1, 16, 5);
|
|
EXTRACT_HELPER_SPLIT(xB, 1, 1, 11, 5);
|
|
EXTRACT_HELPER_SPLIT(xC, 3, 1, 6, 5);
|
|
EXTRACT_HELPER(DM, 8, 2);
|
|
EXTRACT_HELPER(UIM, 16, 2);
|
|
EXTRACT_HELPER(SHW, 8, 2);
|
|
EXTRACT_HELPER(SP, 19, 2);
|
|
EXTRACT_HELPER(IMM8, 11, 8);
|
|
EXTRACT_HELPER(DCMX, 16, 7);
|
|
EXTRACT_HELPER_SPLIT_3(DCMX_XV, 5, 16, 0, 1, 2, 5, 1, 6, 6);
|
|
|
|
void helper_compute_fprf_float16(CPUPPCState *env, float16 arg);
|
|
void helper_compute_fprf_float32(CPUPPCState *env, float32 arg);
|
|
void helper_compute_fprf_float128(CPUPPCState *env, float128 arg);
|
|
|
|
/* Raise a data fault alignment exception for the specified virtual address */
|
|
void ppc_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
|
|
MMUAccessType access_type,
|
|
int mmu_idx, uintptr_t retaddr);
|
|
#endif /* PPC_INTERNAL_H */
|