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114 lines
3.9 KiB
C
114 lines
3.9 KiB
C
/*****************************************************************************/
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/* */
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/* supervision.h */
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/* */
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/* Supervision specific definitions */
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/* */
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/* */
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/* */
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/* 2003 Peter Trauner (trap@utanet.at) */
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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 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's documentation, */
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/* would be appreciated, but is not required. */
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/* 2. Alterred source versions must be marked plainly as such, */
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/* and must not be misrepresented as being the original software. */
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/* 3. This notice may not be removed or alterred */
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/* from any source distribution. */
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/* */
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/*****************************************************************************/
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#ifndef _SUPERVISION_H
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#define _SUPERVISION_H
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/* Check for errors */
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#if !defined(__SUPERVISION__)
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# error This module may only be used when compiling for the Supervision!
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#endif
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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struct __sv_lcd {
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unsigned char width;
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unsigned char height;
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unsigned char xpos;
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unsigned char ypos;
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};
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#define SV_LCD ((struct __sv_lcd*)0x2000)
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struct __sv_tone {
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unsigned delay;
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unsigned char control;
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unsigned char timer;
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};
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#define SV_RIGHT ((struct __sv_tone*)0x2010)
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#define SV_LEFT ((struct __sv_tone*)0x2014)
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struct __sv_noise {
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unsigned char volume; /* and frequency */
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unsigned char timer;
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unsigned char control;
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};
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#define SV_NOISE ((struct __sv_noise*)0x2028)
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struct __io_port {
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unsigned char in;
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unsigned char out;
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};
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#define IO_PORT ((struct __io_port*)(0x2021)
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struct __sv_dma {
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unsigned start;
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unsigned char size;
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unsigned char control;
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unsigned char on;
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};
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#define SV_DMA ((struct __sv_dma*)0x2018)
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#define SV_CONTROL (*(unsigned char*)0x2020)
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#define SV_BANK (*(unsigned char*)0x2026)
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#define SV_BANK_COMBINE(nmi,irq_timer,irq_dma,lcd_on, timer_prescale, bank) \
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((nmi)?1:0)|((irq_timer)?2:0)|((irq_dma)?4:0)|((lcd_on)?8:0) \
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|((timer_prescale)?0x10:0)|((bank)<<5)
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#define SV_VIDEO ((unsigned char*)0x4000)
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#define SV_TIMER_COUNT (*(unsigned char*)0x2023)
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/* Counters incremented asynchronously!
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* If you want more complex, copy the crt0.s file from the libsrc/supervision
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* directory and code them yourself (in assembler)
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*/
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extern unsigned char sv_nmi_counter;
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extern unsigned char sv_timer_irq_counter;
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extern unsigned char sv_timer_dma_counter;
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/* End of supervision.h */
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#endif
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