ack/plat/msdos386/libsys/rename.s

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

#include "libsysasm.h"

! Rename a file.

.define _rename
_rename:
	push edi

	! Destination filename.

	mov eax, 4+8(esp)
#define DEST_NAME_OFFSET (TRANSFER_BUFFER_SIZE / 2)
	mov edx, DEST_NAME_OFFSET
	mov ecx, edx
	call .sys_sncpyout
	jc 9f
	xchg edi, eax
	
	! Source filename.

	mov eax, 4+4(esp)
	xor edx, edx
	call .sys_sncpyout
	jc 9f
	xchg edx, eax

	! Make the DOS call.

	movb ah, 0x56
	call .sys_dpmidos

	pop edi
	jmp .sys_zret

9:
	pop edi
	jmp .sys_toolongret
Cut-and-paste the msdos86 libsys so the msdos386 stuff now at least builds. 2022-08-07 20:10:08 +00:00			`#`
			`! $Source$`
			`! $State$`
			`! $Revision$`

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			`#include "libsysasm.h"`
Cut-and-paste the msdos86 libsys so the msdos386 stuff now at least builds. 2022-08-07 20:10:08 +00:00
			`! Rename a file.`

			`.define _rename`
			`_rename:`
Most of read and write now works; filename-based operations partially work; but there's a nasty memory corruption somewhere which needs investigating. 2022-08-18 22:08:57 +00:00			`push edi`

			`! Destination filename.`

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			`mov eax, 4+8(esp)`
			`#define DEST_NAME_OFFSET (TRANSFER_BUFFER_SIZE / 2)`
			`mov edx, DEST_NAME_OFFSET`
			`mov ecx, edx`
			`call .sys_sncpyout`
			`jc 9f`
			`xchg edi, eax`
Most of read and write now works; filename-based operations partially work; but there's a nasty memory corruption somewhere which needs investigating. 2022-08-18 22:08:57 +00:00
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 filename.`

			`mov eax, 4+4(esp)`
			`xor edx, edx`
			`call .sys_sncpyout`
			`jc 9f`
			`xchg edx, eax`

Most of read and write now works; filename-based operations partially work; but there's a nasty memory corruption somewhere which needs investigating. 2022-08-18 22:08:57 +00:00			`! Make the DOS call.`

Cut-and-paste the msdos86 libsys so the msdos386 stuff now at least builds. 2022-08-07 20:10:08 +00:00			`movb ah, 0x56`
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			`call .sys_dpmidos`

Most of read and write now works; filename-based operations partially work; but there's a nasty memory corruption somewhere which needs investigating. 2022-08-18 22:08:57 +00:00			`pop edi`
Cut-and-paste the msdos86 libsys so the msdos386 stuff now at least builds. 2022-08-07 20:10:08 +00:00			`jmp .sys_zret`
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
			`9:`
			`pop edi`
			`jmp .sys_toolongret`