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ipl.h
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ipl.h
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/*
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__/¯\____ ___/\__ _/\__ _/\_ _/\__ _/\___ ___/\__ __/\_ _/\__
\_ ____/_> ____ \_/ _ \_ \ < /_ \_/ _>> ____ \_ > \_/ _ \_
_> ___/ ¯>__> <<__// __ _/ |> ></ _/> </ ¯ \\__> <<__// /\ // __ _/
_> \7 <__/:. \__/:. \> \_/ L/ _____/. 7> .\_/:. \__/ <_/ </:. \> \_
|:::::::::::::::::::::::/:::::::::::::>::::::::/::::::::::::::::::::::::/:::::|
|¯¯\::::/\:/¯\::::/¯¯¯¯<::::/\::/¯¯\:/¯¯¯¯¯¯\::\::/¯¯\::::/¯¯\::::/¯¯¯¯<::::/¯|
|__ |¯¯| T _ |¯¯¯| ___ |¯¯| |¯| _ T ______ |¯¯¯¯| _ |¯¯¯| _ |¯¯¯| ___ |¯¯| _|
\|__|/\|/ \|___|/ \|__|/\|_|/ \|/ \| |/ \|___|/ \|___|/dNo\|__|/
¬°¤*,¸¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸
¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯
This file is part of Etripator,
copyright (c) 2009--2023 Vincent Cruz.
Etripator is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Etripator is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Etripator. If not, see <http://www.gnu.org/licenses/>.
¬°¤*,¸¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸
¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯
*/
#ifndef IPL_H
#define IPL_H
#include "config.h"
#include "section.h"
/**
* IPL Information block data format
*/
typedef struct {
/** IPLBLK - load start record no. of CD (3 bytes high/medium/low)
* this is where the program is stored. **/
uint8_t load_start_record[3];
/** IPLBLN - load block length of CD (1 byte)
* number of sectors to read. **/
uint8_t load_sector_count;
/** IPLSTA - program load address (2 bytes low/high)
* main memory address for program read. **/
uint8_t load_store_address[2];
/** IPLJMP - program execute address (2 bytes low/high)
* starting address of execution after program read. **/
uint8_t load_exec_address[2];
/** IPLMPR - ipl set mpr2-6 (5 bytes) **/
uint8_t mpr[5];
/** OPENMODE - opening mode
* bit 0: data read to vram (0: not read, 1: read)
* bit 1: data read to adpcm buffer (0: not read, 1: read)
* bit 5: bg display (0: display on, 1: display off)
* bit 6: adpcm play (0: play, 1: not play)
* bit 7: adpcm play mode (0: single, 1: repeat) **/
uint8_t opening_mode;
/** GRPBLK - opening graphic data record no. (3 bytes high/medium/low) **/
uint8_t opening_gfx_record[3];
/** GRPBLN - opening graphic data length (1 byte) **/
uint8_t opening_gfx_sector_count;
/** GRPADR - opening graphic data read address (2 bytes low/high) **/
uint8_t opening_gfx_read_address[2];
/** ADPBLK - opening ADPCM data record no. (3 bytes high/medium/low) **/
uint8_t opening_adpcm_record[3];
/** ADPBLN - opening ADPCM data length (1 byte) **/
uint8_t opening_adpcm_sector_count;
/** ADPRATE - opening ADPCM sampling rate (1 byte) **/
uint8_t opening_adpcm_sampling_rate;
/** RESERVED (7 bytes) **/
uint8_t reserved[7];
/** ID STR - "PC Engine CD-ROM SYSTEM", 0 **/
uint8_t id[24];
/** LEGAL - "Copyright HUDSON SOFT / NEC Home Electronics, Ltd.", 0 **/
uint8_t legal[50];
/** PROGRAM NAME - program name (16 bytes) **/
uint8_t program_name[16];
/** EXTRA - (6 bytes) **/
uint8_t extra[6];
} ipl_t;
/*
IPL graphic block
color palette - 1 record
BAT data - 1 record
BG font data - GRPBLN - 2 records
*/
/**
* Display IPL infos.
* \param [in] in IPL infos.
*/
void ipl_print(ipl_t *in);
/**
* Read IPL data from file.
* \param [out] out IPL infos.
* \param [in] filename Input filename.
* \return 0 on error, 1 otherwise.
*/
int ipl_read(ipl_t *out, const char *filename);
/**
* Get irq code offsets from IPL.
* \param [in] in IPL infos.
* \param [out] section Sections.
* \param [out] count Section count.
* \return 0 on error, 1 otherwise.
*/
int ipl_sections(ipl_t *in, section_t **out, int *count);
#endif // IPL_H