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ARM: Stub out the 32 bit Thumb portion of the decoder.

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This commit is contained in:
Gabe Black 2010-06-02 12:58:00 -05:00
parent 659f8d021f
commit cef2e8ecee
1 changed files with 206 additions and 1 deletions
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207
src/arch/arm/isa/thumbdecode.isa
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@ -169,5 +169,210 @@
0x0: WarnUnimpl::b(); // unconditional 0x0: WarnUnimpl::b(); // unconditional
} }
} }
1: Unknown::unknown();
// 32 bit thumb instructions.
1: decode HTOPCODE_12_11 {
0x1: decode HTOPCODE_10_9 {
0x0: decode HTOPCODE_8_6 {
0x0, 0x6: decode HTOPCODE_4 {
0x0: WarnUnimpl::srs();
0x1: WarnUnimpl::rfe();
}
0x1: decode HTOPCODE_5_4 {
0x0: WarnUnimpl::strex();
0x1: WarnUnimpl::ldrex();
0x2: WarnUnimpl::strd(); // immediate
0x3: decode HTRN {
0xf: WarnUnimpl::ldrd(); // literal
default: WarnUnimpl::ldrd(); // immediate
}
}
0x2: decode HTOPCODE_4 {
0x0: WarnUnimpl::stm(); // stmia, stmea
0x1: decode HTRN {
0xd: WarnUnimpl::pop();
default: WarnUnimpl::ldm(); // ldmia, ldmfd
}
}
0x3: decode HTOPCODE_5_4 {
0x0: decode LTOPCODE_7_4 {
0x4: WarnUnimpl::strexb();
0x5: WarnUnimpl::strexh();
0x7: WarnUnimpl::strexd();
}
0x1: decode LTOPCODE_7_4 {
0x0: WarnUnimpl::tbb();
0x1: WarnUnimpl::tbh();
0x4: WarnUnimpl::ldrexb();
0x5: WarnUnimpl::ldrexh();
0x7: WarnUnimpl::ldrexd();
}
0x2: WarnUnimpl::strd(); // immediate
0x3: decode HTRN {
0xf: WarnUnimpl::ldrd(); // literal
default: WarnUnimpl::ldrd(); // immediate
}
}
0x4: decode HTOPCODE_4 {
0x0: decode HTRN {
0xd: WarnUnimpl::push();
default: WarnUnimpl::stmdb(); // stmfd
}
0x1: WarnUnimpl::ldmdb(); // ldmea
}
0x5, 0x7: decode HTOPCODE_4 {
0x0: WarnUnimpl::strd(); // immediate
0x1: decode HTRN {
0xf: WarnUnimpl::ldrd(); // literal
default: WarnUnimpl::ldrd(); // immediate
}
}
}
0x1: decode HTOPCODE_8_5 {
0x0: decode LTRD {
0xf: decode HTS {
0x1: WarnUnimpl::tst(); // register
}
default: WarnUnimpl::and(); // register
}
0x1: WarnUnimpl::bic(); // register
0x2: decode HTRN {
0xf: WarnUnimpl::mov(); // register
default: WarnUnimpl::orr(); // register
}
0x3: decode HTRN {
0xf: WarnUnimpl::mvn(); // register
default: WarnUnimpl::orn(); // register
}
0x4: decode LTRD {
0xf: decode HTS {
0x1: WarnUnimpl::teq(); // register
}
default: WarnUnimpl::eor(); // register
}
0x6: WarnUnimpl::pkh();
0x8: decode LTRD {
0xf: decode HTS {
0x1: WarnUnimpl::cmn(); // register
}
default: WarnUnimpl::add(); // register
}
0xa: WarnUnimpl::adc(); // register
0xb: WarnUnimpl::sbc(); // register
0xd: decode LTRD {
0xf: decode HTS {
0x1: WarnUnimpl::cmp(); // register
}
default: WarnUnimpl::sub(); // register
}
0xe: WarnUnimpl::rsb(); // register
}
default: decode HTOPCODE_9_8 {
0x2: decode LTOPCODE_4 {
0x0: decode LTCOPROC {
0xa, 0xb: decode OPCODE_23_20 {
##include "vfpdecode.isa"
}
default: WarnUnimpl::cdp(); // cdp2
}
0x1: decode LTCOPROC {
0xa, 0xb: WarnUnimpl::Core_to_extension_transfer();
default: decode HTOPCODE_4 {
0x0: WarnUnimpl::mcr(); // mcr2
0x1: WarnUnimpl::mrc(); // mrc2
}
}
}
0x3: WarnUnimpl::Advanced_SIMD();
default: decode LTCOPROC {
0xa, 0xb: decode HTOPCODE_9_4 {
0x00: WarnUnimpl::undefined();
0x04: WarnUnimpl::mcrr(); // mcrr2
0x05: WarnUnimpl::mrrc(); // mrrc2
0x02, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10,
0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e:
WarnUnimpl::stc(); // stc2
0x03, 0x07, 0x09, 0x0b, 0x0d, 0x0f, 0x11,
0x13, 0x15, 0x17, 0x19, 0x1b, 0x1d, 0x1f:
decode HTRN {
0xf: WarnUnimpl::ldc(); // ldc2 (literal)
default: WarnUnimpl::ldc(); // ldc2 (immediate)
}
}
default: decode HTOPCODE_9_5 {
0x00: WarnUnimpl::undefined();
0x02: WarnUnimpl::SIMD_VFP_64_bit_core_extension_transfer();
0x01, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f:
WarnUnimpl::Extension_register_load_store_instruction();
}
}
}
}
0x2: decode LTOPCODE_15 {
0x0: decode HTOPCODE_9 {
0x0: WarnUnimpl::Data_processing_modified_immediate();
0x1: WarnUnimpl::Data_processing_plain_binary_immediate();
}
0x1: WarnUnimpl::Branches_and_miscellaneous_control();
}
0x3: decode HTOPCODE_10_9 {
0x0: decode HTOPCODE_4 {
0x0: decode HTOPCODE_8 {
0x0: WarnUnimpl::Store_single_data_item();
0x1: WarnUnimpl::Advanced_SIMD_or_structure_load_store();
}
0x1: decode HTOPCODE_6_5 {
0x0: WarnUnimpl::Load_byte_memory_hints();
0x1: WarnUnimpl::Load_halfword_memory_hints();
0x2: WarnUnimpl::Load_word();
0x3: WarnUnimpl::undefined();
}
}
0x1: decode HTOPCODE_8_7 {
0x2: WarnUnimpl::Multiply_multiply_accumulate_and_absolute_difference();
0x3: WarnUnimpl::Long_multiply_long_multiply_accumulate_and_divide();
default: WarnUnimpl::Data_processing_register();
}
default: decode HTOPCODE_9_8 {
0x2: decode LTOPCODE_4 {
0x0: decode LTCOPROC {
0xa, 0xb: WarnUnimpl::VFP_Inst();
default: WarnUnimpl::cdp(); // cdp2
}
0x1: decode LTCOPROC {
0xa, 0xb: WarnUnimpl::Core_to_extension_transfer();
default: decode HTOPCODE_4 {
0x0: WarnUnimpl::mcr(); // mcr2
0x1: WarnUnimpl::mrc(); // mrc2
}
}
}
0x3: WarnUnimpl::Advanced_SIMD();
default: decode LTCOPROC {
0xa, 0xb: decode HTOPCODE_9_4 {
0x00: WarnUnimpl::undefined();
0x04: WarnUnimpl::mcrr(); // mcrr2
0x05: WarnUnimpl::mrrc(); // mrrc2
0x02, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10,
0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e:
WarnUnimpl::stc(); // stc2
0x03, 0x07, 0x09, 0x0b, 0x0d, 0x0f, 0x11,
0x13, 0x15, 0x17, 0x19, 0x1b, 0x1d, 0x1f:
decode HTRN {
0xf: WarnUnimpl::ldc(); // ldc2 (literal)
default: WarnUnimpl::ldc(); // ldc2 (immediate)
}
}
default: decode HTOPCODE_9_5 {
0x00: WarnUnimpl::undefined();
0x02: WarnUnimpl::SIMD_VFP_64_bit_core_extension_transfer();
0x01, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f:
WarnUnimpl::Extension_register_load_store_instruction();
}
}
}
}
}
} }