53 lines
1.1 KiB
C++
53 lines
1.1 KiB
C++
#pragma once
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#include "utility.hh"
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#include <cstdint>
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class Psr {
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public:
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// clear the reserved bits i.e, [8:27]
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Psr(uint32_t raw);
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// Mode : [4:0]
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Mode mode() const;
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void set_mode(Mode mode);
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// State : [5]
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State state() const;
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void set_state(State state);
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#define GET_SET_NTH_BIT_FUNCTIONS(name) \
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bool name() const; \
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void set_##name(bool val);
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// FIQ disable : [6]
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GET_SET_NTH_BIT_FUNCTIONS(fiq_disabled)
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// IRQ disable : [7]
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GET_SET_NTH_BIT_FUNCTIONS(irq_disabled)
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// Reserved bits : [27:8]
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// Overflow flag : [28]
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GET_SET_NTH_BIT_FUNCTIONS(v)
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// Carry flag : [29]
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GET_SET_NTH_BIT_FUNCTIONS(c)
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// Zero flag : [30]
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GET_SET_NTH_BIT_FUNCTIONS(z)
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// Negative flag : [30]
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GET_SET_NTH_BIT_FUNCTIONS(n)
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#undef GET_SET_NTH_BIT_FUNCTIONS
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bool condition(Condition cond) const;
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private:
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static constexpr uint32_t PSR_CLEAR_RESERVED = 0xf00000ff;
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static constexpr uint32_t PSR_CLEAR_MODE = 0x0b00000;
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uint32_t psr;
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};
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