52 lines
669 B
C
52 lines
669 B
C
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/* $Source$
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* $State$
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* $Revision$
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*/
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#include <stdlib.h>
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#include <errno.h>
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#include <unistd.h>
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#include <cpm.h>
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void _sys_write_tty(char c)
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{
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cpm_bc_register = CPM_BDOS_CONSOLE_OUTPUT;
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cpm_de_register = c;
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cpm_bdos();
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if (c == '\n')
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{
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cpm_bc_register = CPM_BDOS_CONSOLE_OUTPUT;
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cpm_de_register = '\r';
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cpm_bdos();
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}
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}
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int write(int fd, void* buffer, size_t count)
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{
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int i;
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char* p = buffer;
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/* We're only allowed to write to fd 0, 1 or 2. */
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if ((fd < 0) || (fd > 2))
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{
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errno = EBADF;
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return -1;
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}
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/* Write all data. */
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i = 0;
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while (i < count)
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{
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_sys_write_tty(*p++);
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i++;
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}
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/* No failures. */
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return count;
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}
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