Commit Graph

4 Commits

Author SHA1 Message Date
jtk 04f1e23fe1 BIOS trampoline is a static beast; generate it in the sources like
syscalls.h & friends, and include it when needed from the source directory.
1996-09-13 00:02:36 +00:00
mycroft dbacbd3636 Use machine/asm.h. Garbage collect. 1996-09-09 18:42:51 +00:00
jtk ec11419661 fix compilation problems when APM not configured 1996-09-09 11:31:40 +00:00
jtk fda7345c98 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.
1996-09-08 15:36:51 +00:00