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[ISAC]Add InternalDecoder zfh instructions support #573

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[ISAC]Add InternalDecoder zfh instructions support #573

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a7c2394
add supprot code
Pagerd Nov 29, 2024
27891e0
Merge branch 'dev' into zfh_2
UmerShahidengr Dec 31, 2024
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67 changes: 67 additions & 0 deletions riscv-isac/riscv_isac/plugins/internaldecoder.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1744,6 +1744,8 @@ def rv32_rv64_float_ops(self, instrObj):
instrObj.rm = rm

# fadd, fsub, fmul, fdiv
if funct7 == 0b0000010:
instrObj.instr_name = 'fadd.h'
if funct7 == 0b0000000:
instrObj.instr_name = 'fadd.s'
elif funct7 == 0b0000100:
Expand All @@ -1761,6 +1763,54 @@ def rv32_rv64_float_ops(self, instrObj):
elif funct7 == 0b0001101:
instrObj.instr_name = 'fdiv.d'


if funct7 == 0b1110010:
instrObj.instr_name = 'fclass.h'

if funct7 == 0b1100010:
if rs2[0] == 0b01:
instrObj.instr_name = 'fcvt.wu.h'
elif rs2[0] == 0b0:
instrObj.instr_name = 'fcvt.w.h'
if funct7 == 0b1110:
instrObj.instr_name = 'fdiv'

if funct7 == 0b1010010:
if rm == 0b01:
instrObj.instr_name = 'flt'
elif rm == 0b00:
instrObj.instr_name = 'fle'
elif rm == 0b10:
instrObj.instr_name = 'feq'

if funct7 == 0b10110:
if rs2[0] == 0b11111:
instrObj.instr_name = 'fmax.h'
elif rs2[0] == 0b11110:
instrObj.instr_name = 'fmin.h'

if funct7 == 0b1111010:
instrObj.instr_name = 'fmv.h.x'

if funct7 == 0b1110010:
instrObj.instr_name = 'fmv.x.h'

if funct7 == 0b10010:
if rm == 0b01:
instrObj.instr_name = 'fsgnjn'
elif rm == 0b00:
instrObj.instr_name = 'fsgnj'
elif rm == 0b10:
instrObj.instr_name = 'fsgnjx'

if funct7 == 0b101110:
instrObj.instr_name = 'fsqrt'






# fsqrt
if funct7 == 0b0101100:
instrObj.instr_name = 'fsqrt.s'
Expand Down Expand Up @@ -1828,6 +1878,23 @@ def rv32_rv64_float_ops(self, instrObj):
instrObj.instr_name = 'fcvt.lu.s'
return instrObj

#fcvt.d.h fcvt.s.h fcvt.h.d fcvt.h.s
if funct7 == 0b100001:
if rs2[0] == 0b10:
instrObj.instr_name = 'fcvt.d.h'
return instrObj
elif funct7 == 0b100000:
if rs2[0] == 0b10:
instrObj.instr_name = 'fcvt.s.h'
return instrObj
elif funct7 == 0b100010:
if rs2[0] == 0b1:
instrObj.instr_name = 'fcvt.h.d'
return instrObj
elif rs2[0] == 0:
instrObj.instr_name = 'fcvt.h.s'
return instrObj

# fcvt.s.d, fcvt.d.s
if funct7 == 0b0100000:
if rs2[0] == 0b00001:
Expand Down