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https://github.com/jart/cosmopolitan.git
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23d333c090
This change includes many bug fixes, for the NT polyfills, strings, memory, boot, and math libraries which were discovered by adding more tools for recreational programming, such as PC emulation. Lemon has also been vendored because it works so well at parsing languages.
70 lines
2.4 KiB
C
70 lines
2.4 KiB
C
#ifndef COSMOPOLITAN_TOOL_BUILD_LIB_FLAGS_H_
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#define COSMOPOLITAN_TOOL_BUILD_LIB_FLAGS_H_
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#include "tool/build/lib/machine.h"
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#define FLAGS_CF 0
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#define FLAGS_VF 1
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#define FLAGS_PF 2
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#define FLAGS_F1 3
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#define FLAGS_AF 4
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#define FLAGS_KF 5
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#define FLAGS_ZF 6
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#define FLAGS_SF 7
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#define FLAGS_TF 8
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#define FLAGS_IF 9
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#define FLAGS_DF 10
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#define FLAGS_OF 11
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#define FLAGS_IOPL 12
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#define FLAGS_NT 14
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#define FLAGS_F0 15
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#define FLAGS_RF 16
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#define FLAGS_VM 17
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#define FLAGS_AC 18
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#define FLAGS_VIF 19
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#define FLAGS_VIP 20
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#define FLAGS_ID 21
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#define GetLazyParityBool(f) GetParity((f) >> 24)
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#define SetLazyParityByte(f, x) (((f) & ~0xFF000000u) | ((x)&0xFFu) << 24)
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#define GetFlag(FLAGS, BIT) \
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({ \
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autotype(FLAGS) Flags = (FLAGS); \
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typeof(Flags) IsSet; \
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switch (BIT) { \
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case FLAGS_PF: \
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IsSet = GetLazyParityBool(Flags); \
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break; \
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default: \
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IsSet = (Flags >> (BIT)) & 1; \
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break; \
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} \
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IsSet; \
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})
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#define SetFlag(FLAGS, BIT, VAL) \
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({ \
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autotype(FLAGS) Flags = (FLAGS); \
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typeof(Flags) Val = (VAL); \
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typeof(Flags) One = 1; \
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switch (BIT) { \
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case FLAGS_PF: \
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Flags = SetLazyParityByte(Flags, !Val); \
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break; \
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default: \
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Flags = (Flags & ~(One << (BIT))) | Val << (BIT); \
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break; \
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} \
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Flags; \
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})
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bool GetParity(uint8_t);
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uint64_t ExportFlags(uint64_t);
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void ImportFlags(struct Machine *, uint64_t);
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_TOOL_BUILD_LIB_FLAGS_H_ */
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