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This commit is contained in:
Thomas Harte 2024-02-22 11:20:22 -05:00
parent 56a5df3783
commit 73d2acca12
1 changed files with 5 additions and 0 deletions
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5
InstructionSets/ARM/OperationMapper.hpp
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@ -80,6 +80,9 @@ constexpr bool flag_bit(uint8_t flags) {
return flags & (1 << (position - FlagsStartBit)); return flags & (1 << (position - FlagsStartBit));
} }
//
// Methods common to data processing and data transfer.
//
struct WithShiftControlBits { struct WithShiftControlBits {
constexpr WithShiftControlBits(uint32_t opcode) noexcept : opcode_(opcode) {} constexpr WithShiftControlBits(uint32_t opcode) noexcept : opcode_(opcode) {}
@ -121,6 +124,7 @@ struct DataProcessingFlags {
/// @c false if it is defined by the @c shift_*() and @c operand2() fields. /// @c false if it is defined by the @c shift_*() and @c operand2() fields.
constexpr bool operand2_is_immediate() { return flag_bit<25>(flags_); } constexpr bool operand2_is_immediate() { return flag_bit<25>(flags_); }
/// @c true if the status register should be updated; @c false otherwise.
constexpr bool set_condition_codes() { return flag_bit<20>(flags_); } constexpr bool set_condition_codes() { return flag_bit<20>(flags_); }
private: private:
@ -152,6 +156,7 @@ struct DataProcessing: public WithShiftControlBits {
struct MultiplyFlags { struct MultiplyFlags {
constexpr MultiplyFlags(uint8_t flags) noexcept : flags_(flags) {} constexpr MultiplyFlags(uint8_t flags) noexcept : flags_(flags) {}
/// @c true if the status register should be updated; @c false otherwise.
constexpr bool set_condition_codes() { return flag_bit<20>(flags_); } constexpr bool set_condition_codes() { return flag_bit<20>(flags_); }
private: private: