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9e3e985ae5
Here's some screenshots of an emulator tui program that was compiled on Linux, then scp'd it to Windows, Mac, and FreeBSD. https://justine.storage.googleapis.com/blinkenlights-cmdexe.png https://justine.storage.googleapis.com/blinkenlights-imac.png https://justine.storage.googleapis.com/blinkenlights-freebsd.png https://justine.storage.googleapis.com/blinkenlights-lisp.png How is this even possible that we have a nontrivial ui binary that just works on Mac, Windows, Linux, and BSD? Surely a first ever achievement. Fixed many bugs. Bootstrapped John McCarthy's metacircular evaluator on bare metal in half the size of Altair BASIC (about 2.5kb) and ran it in emulator for fun and profit.
13 lines
477 B
C
13 lines
477 B
C
#ifndef COSMOPOLITAN_TOOL_BUILD_LIB_PML4T_H_
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#define COSMOPOLITAN_TOOL_BUILD_LIB_PML4T_H_
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#define IsValidPage(x) ((x)&1)
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#define MaskPageAddr(x) ((x)&0x00007ffffffff000)
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#define UnmaskPageAddr(x) SignExtendAddr(MaskPageAddr(x))
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#define SignExtendAddr(x) ((int64_t)((uint64_t)(x) << 16) >> 16)
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_TOOL_BUILD_LIB_PML4T_H_ */
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