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https://github.com/cc65/cc65.git
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107 lines
4.8 KiB
PHP
107 lines
4.8 KiB
PHP
;/*****************************************************************************/
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;/* */
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;/* em-kernel.inc */
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;/* */
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;/* EM kernel interface */
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;/* */
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;/* */
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;/* */
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;/* (C) 2002-2003 Ullrich von Bassewitz */
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;/* Römerstrasse 52 */
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;/* D-70794 Filderstadt */
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;/* EMail: uz@cc65.org */
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;/* */
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;/* */
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;/* This software is provided 'as-is', without any expressed or implied */
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;/* warranty. In no event will the authors be held liable for any damages */
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;/* arising from the use of this software. */
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;/* */
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;/* Permission is granted to anyone to use this software for any purpose, */
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;/* including commercial applications, and to alter it and redistribute it */
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;/* freely, subject to the following restrictions: */
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;/* */
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;/* 1. The origin of this software must not be misrepresented; you must not */
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;/* claim that you wrote the original software. If you use this software */
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;/* in a product, an acknowledgment in the product documentation would be */
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;/* appreciated but is not required. */
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;/* 2. Altered source versions must be plainly marked as such, and must not */
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;/* be misrepresented as being the original software. */
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;/* 3. This notice may not be removed or altered from any source */
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;/* distribution. */
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;/* */
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;/*****************************************************************************/
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;------------------------------------------------------------------------------
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; The driver header
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.struct EMD_HDR
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ID .byte 3 ; Contains 0x65, 0x6d, 0x64 ("emd")
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VERSION .byte 1 ; Interface version
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LIBREF .addr ; Library reference
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JUMPTAB .struct
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INSTALL .addr ; INSTALL routine
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UNINSTALL .addr ; UNINSTALL routine
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PAGECOUNT .addr ; PAGECOUNT routine
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MAP .addr ; MAP routine
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USE .addr ; USE routine
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MAPCLEAN .addr ; MAPCLEAN routine
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COPYFROM .addr ; COPYFROM routine
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COPYTO .addr ; COPYTO routine
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.endstruct
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.endstruct
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;------------------------------------------------------------------------------
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; The EMD API version, stored in EMD_HDR::VERSION
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EMD_API_VERSION = $02
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;------------------------------------------------------------------------------
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; The asm equivalent to the C em_copy structure
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.struct EM_COPY
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BUF .addr ; Memory buffer to copy from or to
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OFFS .byte ; Offset into page
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PAGE .word ; Starting page to copy from or to
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COUNT .word ; Number of bytes to copy
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UNUSED .byte ; Make the size 8 bytes
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.endstruct
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;------------------------------------------------------------------------------
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; Variables
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.global _em_drv ; Pointer to driver
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;------------------------------------------------------------------------------
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; Driver entry points
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.global emd_install
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.global emd_uninstall
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.global emd_pagecount
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.global emd_map
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.global emd_use
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.global emd_commit
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.global emd_copyfrom
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.global emd_copyto
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;------------------------------------------------------------------------------
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; ASM functions
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.global em_clear_ptr
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;------------------------------------------------------------------------------
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; C callable functions
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.global _em_load_driver
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.global _em_unload
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.global _em_install
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.global _em_uninstall
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.global _em_pagecount
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.global _em_map
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.global _em_use
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.global _em_commit
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.global _em_copyfrom
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.global _em_copyto
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