diff options
| author | Andrew Waterman <waterman@cs.berkeley.edu> | 2016-03-09 23:54:14 -0800 |
|---|---|---|
| committer | Andrew Waterman <waterman@cs.berkeley.edu> | 2016-03-09 23:58:39 -0800 |
| commit | ccf79891f0f1fcb570f9a63c15270b52477fe7c0 (patch) | |
| tree | e86a1ef10afca65db9908df90616f58fd8fdbeb5 /machine/fp_emulation.c | |
| parent | b94c7a4b07f96f24ae7411780abf874416549f7b (diff) | |
| download | riscv-pk-ccf79891f0f1fcb570f9a63c15270b52477fe7c0.zip riscv-pk-ccf79891f0f1fcb570f9a63c15270b52477fe7c0.tar.gz riscv-pk-ccf79891f0f1fcb570f9a63c15270b52477fe7c0.tar.bz2 | |
Factor emulation routines into multiple files
Diffstat (limited to 'machine/fp_emulation.c')
| -rw-r--r-- | machine/fp_emulation.c | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/machine/fp_emulation.c b/machine/fp_emulation.c index 536967f..7523a29 100644 --- a/machine/fp_emulation.c +++ b/machine/fp_emulation.c @@ -3,70 +3,6 @@ #include "softfloat.h" #include "config.h" -DECLARE_EMULATION_FUNC(emulate_float_load) -{ - uint64_t val; - uintptr_t addr = GET_RS1(insn, regs) + IMM_I(insn); - - switch (insn & MASK_FUNCT3) - { - case MATCH_FLW & MASK_FUNCT3: - if (addr % 4 != 0) - return misaligned_load_trap(regs, mcause, mepc); - - SET_F32_RD(insn, regs, load_int32_t((void *)addr, mepc)); - break; - - case MATCH_FLD & MASK_FUNCT3: - if (addr % sizeof(uintptr_t) != 0) - return misaligned_load_trap(regs, mcause, mepc); - -#ifdef __riscv64 - val = load_uint64_t((void *)addr, mepc); -#else - val = load_uint32_t(addr, mepc); - val += (uint64_t)load_uint32_t((void *)(addr + 4), mepc) << 32; -#endif - SET_F64_RD(insn, regs, val); - break; - - default: - return truly_illegal_insn(regs, mcause, mepc, mstatus, insn); - } -} - -DECLARE_EMULATION_FUNC(emulate_float_store) -{ - uint64_t val; - uintptr_t addr = GET_RS1(insn, regs) + IMM_S(insn); - - switch (insn & MASK_FUNCT3) - { - case MATCH_FSW & MASK_FUNCT3: - if (addr % 4 != 0) - return misaligned_store_trap(regs, mcause, mepc); - - store_uint32_t((void *)addr, GET_F32_RS2(insn, regs), mepc); - break; - - case MATCH_FSD & MASK_FUNCT3: - if (addr % sizeof(uintptr_t) != 0) - return misaligned_store_trap(regs, mcause, mepc); - - val = GET_F64_RS2(insn, regs); -#ifdef __riscv64 - store_uint64_t((void *)addr, val, mepc); -#else - store_uint32_t((void *)addr, val, mepc); - store_uint32_t((void *)(addr + 4), val >> 32, mepc); -#endif - break; - - default: - return truly_illegal_insn(regs, mcause, mepc, mstatus, insn); - } -} - DECLARE_EMULATION_FUNC(emulate_fp) { asm (".pushsection .rodata\n" |