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https://github.com/SDL-Hercules-390/hyperion.git
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d4a1b5e109
Original/legacy cmpsc.c implementation moved to altcmpsc.dll module. Refer to Release Notes and/or README.CMPSC documents for more details.
46 lines
2.2 KiB
C
46 lines
2.2 KiB
C
/* CMPSCPUT.H (c) Copyright "Fish" (David B. Trout), 2012-2014 */
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/* Compression Call Put Next Index Functions */
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/* */
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/* Released under "The Q Public License Version 1" */
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/* (http://www.hercules-390.org/herclic.html) as modifications to */
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/* Hercules. */
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#ifndef _CMPSCPUT_H_
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#define _CMPSCPUT_H_ // Code to be compiled ONLY ONCE goes after here
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#include "cmpscmem.h" // (need MEMBLK)
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///////////////////////////////////////////////////////////////////////////////
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// COMPRESSION: Put Next output DST Index
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//
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// Returns: TRUE if there is no more room remaining in the DST buffer for
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// any more index values (i.e. it's TRUE that we HAVE reached the
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// end of our buffer), otherwise FALSE (i.e. there is still room
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// remaining in the DST buffer for additional index values).
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struct PIBLK // PutIndex parameters block
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{
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CMPSCBLK* pCMPSCBLK; // Ptr to CMPSC instruction control block.
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// pOp1, nLen1, and cbn updated on success.
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MEMBLK* pMEMBLK; // Ptr to operand-1 memory control block
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void** ppPutIndex; // Ptr to PutIndex function pointer.
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U16 index; // U16 index value to be written to DST.
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};
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typedef struct PIBLK PIBLK; // Returns TRUE/FALSE (no more room/room remains)
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typedef U8 (CMPSC_FASTCALL PutIndex)( PIBLK* pPIBLK );
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///////////////////////////////////////////////////////////////////////////////
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// Function to derive CBN value based on PutIndex function pointer
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typedef U8 (CMPSC_FASTCALL PutGetCBN)( PutIndex* pPutIndex );
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///////////////////////////////////////////////////////////////////////////////
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#endif // _CMPSCPUT_H_ // Place all 'ARCH_DEP' code after this statement
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extern PutGetCBN* ARCH_DEP( PutGetCBNTab )[5]; // (ptrs to PutGetCBN table by CDSS)
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extern PutIndex** ARCH_DEP( PutIndexCDSSTab )[5]; // (ptrs to CBN jump tables by CDSS)
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extern PutIndex* ARCH_DEP( PutIndexCBNTab )[8]; // (ptrs to PutIndex functions by CBN)
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///////////////////////////////////////////////////////////////////////////////
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