X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=sect.h;fp=sect.h;h=b3f6e0f6bfdc04acfe87555e6e763e7d4f1dcf4d;hp=3f6f28edfc55f1d7348935927fe8df2debeb0fae;hb=9153334781cd2e23750f4dc002e847606c07a1f0;hpb=81c752326a21408c84f98a18aed065491a88b779 diff --git a/sect.h b/sect.h index 3f6f28e..b3f6e0f 100644 --- a/sect.h +++ b/sect.h @@ -1,7 +1,7 @@ // // RMAC - Reboot's Macro Assembler for all Atari computers // SECT.H - Code Generation, Fixups and Section Management -// Copyright (C) 199x Landon Dyer, 2011-2017 Reboot and Friends +// Copyright (C) 199x Landon Dyer, 2011-2018 Reboot and Friends // RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986 // Source utilized with the kind permission of Landon Dyer // @@ -34,6 +34,14 @@ sloc += 8; ch_size += 8; if(orgactive) orgaddr += 8;} #define D_rword(w) {*chptr++=(uint8_t)(w); *chptr++=(uint8_t)((w)>>8); \ sloc+=2; ch_size+=2;if(orgactive) orgaddr += 2;} + +// Macro for the 56001. Word size on this device is 24 bits wide. I hope that +// orgaddr += 1 means that the addresses in the device reflect this. +#define D_dsp(w) {chcheck(3);*chptr++=(uint8_t)(w>>16); \ + *chptr++=(uint8_t)(w>>8); *chptr++=(uint8_t)w; \ + sloc+=1; ch_size += 3; if(orgactive) orgaddr += 1; \ + dsp_written_data_in_current_org=1;} + // This macro expects to get an array of uint8_ts with the hi bits in a[0] and // the low bits in a[11] (Big Endian). #define D_extend(a) {memcpy(chptr, a, 12); chptr+=12; sloc+=12, ch_size+=12;\ @@ -56,6 +64,7 @@ #define SABS 0x2000 // Section is absolute #define SPIC 0x1000 // Section is position-independent code +// N.B.: THIS IS NO LONGER TRUE // Fixup record a WORD of these bits, followed by a loc and then a pointer // to a symbol or an ENDEXPR-terminated postfix expression. // @@ -109,24 +118,38 @@ // Chunks are used to hold generated code and fixup records #define CHUNK struct _chunk CHUNK { - CHUNK * chnext; // Next, previous chunks in section - CHUNK * chprev; - uint32_t chloc; // Base addr of this chunk - uint32_t challoc; // # bytes allocated for chunk - uint32_t ch_size; // # bytes chunk actually uses - uint8_t * chptr; // Data for this chunk + CHUNK * chnext; // Next, previous chunks in section + CHUNK * chprev; + uint32_t chloc; // Base addr of this chunk + uint32_t challoc; // # bytes allocated for chunk + uint32_t ch_size; // # bytes chunk actually uses + uint8_t * chptr; // Data for this chunk +}; + +// Fixup records can also hold an expression (if any) +#define FIXUP struct _fixup +FIXUP { + FIXUP * next; // Pointer to next FIXUP + uint32_t attr; // Fixup type + uint32_t loc; // Location in section + uint16_t fileno; // ID of current file + uint32_t lineno; // Current line + TOKEN * expr; // Pointer to stored expression (if any) + SYM * symbol; // Pointer to symbol (if any) + uint32_t orgaddr; // Fixup origin address (used for FU_JR) }; // Section descriptor #define SECT struct _sect SECT { - uint16_t scattr; // Section attributes - uint32_t sloc; // Current loc-in / size-of section - uint32_t relocs; // # of relocations for this section - CHUNK * sfcode; // First chunk in section - CHUNK * scode; // Last chunk in section - CHUNK * sffix; // First fixup chunk - CHUNK * sfix; // Last fixup chunk + uint16_t scattr; // Section attributes + uint32_t sloc; // Current loc-in / size-of section + uint32_t relocs; // # of relocations for this section + uint32_t orgaddr; // Current org'd address ***NEW*** + CHUNK * sfcode; // First chunk in section + CHUNK * scode; // Last chunk in section + FIXUP * sffix; // First fixup + FIXUP * sfix; // Last fixup ***NEW*** }; // 680x0 defines @@ -171,7 +194,7 @@ void SwitchSection(int); void SaveSection(void); int fixtest(int, uint32_t); int chcheck(uint32_t); -int AddFixup(uint16_t, uint32_t, TOKEN *); +int AddFixup(uint32_t, uint32_t, TOKEN *); int ResolveAllFixups(void); #endif // __SECT_H__