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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.
15 lines
484 B
C
15 lines
484 B
C
#ifndef COSMOPOLITAN_LIBC_LINUX_READ_H_
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#define COSMOPOLITAN_LIBC_LINUX_READ_H_
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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forceinline long LinuxRead(long fd, void *data, unsigned long size) {
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long rc;
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asm volatile("syscall"
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: "=a"(rc), "=m"(*(char(*)[size])data)
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: "0"(0), "D"(fd), "S"(data), "d"(size)
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: "rcx", "r11", "memory");
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return rc;
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}
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_LINUX_READ_H_ */
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