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#include <sys/io.h>
#include <fs.h>
#include <com32.h>
#include "bios.h"
#include "graphics.h"
#include <syslinux/video.h>
/*
* Write a single character in AL to the console without
* mangling any registers; handle video pages correctly.
*/
__export void writechr(char data)
{
com32sys_t ireg, oreg;
memset(&ireg, 0, sizeof ireg);
memset(&oreg, 0, sizeof oreg);
write_serial(data); /* write to serial port if needed */
if (UsingVGA & 0x8)
syslinux_force_text_mode();
if (!(DisplayCon & 0x1))
return;
ireg.eax.b[0] = data;
ireg.eax.b[1] = 0xE;
ireg.ebx.b[0] = 0x07; /* attribute */
ireg.ebx.b[1] = *(uint8_t *)BIOS_page; /* current page */
__intcall(0x10, &ireg, &oreg);
}
void pm_writechr(com32sys_t *regs)
{
writechr(regs->eax.b[0]);
}
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