ack/plat/msdos386/libsys/sys_dpmidos.s

#
! $Source$
! $State$
! $Revision$

#include "libsysasm.h"

! .sys_dpmidos: simulate a call to real-mode int 0x21 with the current
! 16-bit register values.

.extern .sys_dpmidos
.sys_dpmidos:
	movzx ebx, bx
	or ebx, 0x210000
	callf (interrupt_ptr)
	ret
plat/msdos386: refactor, firm up, and optimize - refactor code for transfer buffer reads/writes, real mode int 0x21 calls, and assembler segment declarations - define transfer buffer size in one place - beef up error checking for transfer buffer operations (prevent buffer overflows) - also optimize such operations to transfer dword by dword where feasible 2022-08-26 17:20:56 +00:00			`#`
			`! $Source$`
			`! $State$`
			`! $Revision$`

			`#include "libsysasm.h"`

			`! .sys_dpmidos: simulate a call to real-mode int 0x21 with the current`
			`! 16-bit register values.`

			`.extern .sys_dpmidos`
			`.sys_dpmidos:`
			`movzx ebx, bx`
			`or ebx, 0x210000`
			`callf (interrupt_ptr)`
			`ret`