jtk
Sun Sep  8 08:36:56 PDT 1996
Update of /cvsroot/src/sys/arch/i386/apm_init
In directory netbsd1:/var/slash-tmp/cvs-serv24299

Modified Files:
	Makefile Makefile.inc 
Added Files:
	biostramp.S 
Removed Files:
	apm_init.S real_prot.S real_prot.h table.c 
Log Message:
re-implement BIOS trampoline as a more general-purpose, reusable trampoline.
calling interface (via a grapple in locore.s) is:
/*
 * void bioscall(int function, struct apmregs *regs):
 * 	call the BIOS interrupt "function" from real mode with
 *	registers as specified in "regs"
 *	(for the flags, though, only these flags are passed to the BIOS;
 *	the remainder come from the flags register at the time of the call:
 *	(PSL_C|PSL_PF|PSL_AF|PSL_Z|PSL_N|PSL_D|PSL_V)
 *
 *	Fills in *regs with registers as returned by BIOS.
 */

still some generalization to do (moving this to a better named location,
cleaning up #if tests from NAPM > 0 to something else to allow easy
sharing by other drivers)

Thanks to Charles Hannum for complaining about the previous BIOS grapple
and inspiring me to hack this one together.