mirror of http://shamusworld.gotdns.org/git/rmac
59 lines
2.3 KiB
C
59 lines
2.3 KiB
C
//
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// RMAC - Renamed Macro Assembler for all Atari computers
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// MARK.H - A record of things that are defined relative to any of the sections
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// Copyright (C) 199x Landon Dyer, 2011-2021 Reboot and Friends
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// RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986
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// Source utilised with the kind permission of Landon Dyer
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//
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#ifndef __MARK_H__
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#define __MARK_H__
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#include "rmac.h"
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// A mark is of the form:
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// .W <to+flags> section mark is relative to, and flags in upper byte
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// .L <loc> location of mark in "from" section
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// .W [from] new from section
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// .L[L] [symbol] symbol involved in external reference (LL for 64-bit pointers)
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#define MCHUNK struct _mchunk
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MCHUNK {
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MCHUNK * mcnext; // Next mark chunk
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PTR mcptr; // Vector of marks
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uint16_t mcalloc; // # marks allocted to mark block
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uint16_t mcused; // # marks used in block
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};
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#define MWORD 0x0000 // Marked word
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#define MLONG 0x0100 // Marked long
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#define MQUAD 0x0400 // Marked quad
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//This will have to be defined eventually. Might have to overhaul the mark
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//system as 8-bits doesn't seem to be enough, at least for a bitfield (which it
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//might not have to be, in which case it would be big enough...)
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//#define MQUAD 0x // Marked quad word (TODO: merge with MDOUBLE?)
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#define MMOVEI 0x0200 // Mark RISC MOVEI instruction
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//#define MDOUBLE 0x0400 // Marked double float
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//#define MEXTEND 0x0800 // Marked extended float
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//#define MSINGLE 0x0880 // Marked single float (TODO: merge with MLONG?)
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#define MGLOBAL 0x0800 // Mark contains global
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#define MPCREL 0x1000 // Mark is PC-relative
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#define MCHEND 0x2000 // Indicates end of mark chunk
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#define MSYMBOL 0x4000 // Mark includes symbol pointer
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#define MCHFROM 0x8000 // Mark includes change-to-from
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// Exported variables
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extern MCHUNK * firstmch;
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// Exported functions
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void InitMark(void);
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void StopMark(void);
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uint32_t MarkRelocatable(uint16_t, uint32_t, uint16_t, uint16_t, SYM *);
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uint32_t AllocateMark(void);
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uint32_t MarkImage(register uint8_t * mp, uint32_t siz, uint32_t tsize, int okflag);
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uint32_t MarkBSDImage(uint8_t *, uint32_t, uint32_t, int);
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uint32_t CreateELFRelocationRecord(uint8_t *, uint8_t *, uint16_t section);
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uint32_t MarkABSImage(uint8_t * mp, uint32_t siz, uint32_t tsize, int reqseg);
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#endif // __MARK_H__
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