X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=sect.h;h=073d625d62779f2b6db06e1af063cbdff909026b;hp=d34dec23317413802052636e48fbfd9bbba93764;hb=eace4e1b294ccec54a5c476619f616f5da0bf8a9;hpb=052be802baa4836564801c780b1d432cfe17c576 diff --git a/sect.h b/sect.h index d34dec2..073d625 100644 --- a/sect.h +++ b/sect.h @@ -1,7 +1,7 @@ // -// RMAC - Reboot's Macro Assembler for the Atari Jaguar Console System +// RMAC - Reboot's Macro Assembler for all Atari computers // SECT.H - Code Generation, Fixups and Section Management -// Copyright (C) 199x Landon Dyer, 2017 Reboot and Friends +// Copyright (C) 199x Landon Dyer, 2011-2017 Reboot and Friends // RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986 // Source utilised with the kind permission of Landon Dyer // @@ -13,7 +13,6 @@ // Macros to deposit code in the current section // D_rword deposits a "6502" format (low, high) word (01). -// D_rlong deposits a MWC "canonical byte order" longword (2301). #define D_byte(b) {*chptr++=(uint8_t)(b); sloc++; ch_size++; \ if(orgactive) orgaddr++;} #define D_word(w) {chcheck(2);*chptr++=(uint8_t)((w)>>8); \ @@ -24,11 +23,67 @@ *chptr++=(uint8_t)((lw)>>8); \ *chptr++=(uint8_t)(lw); \ sloc += 4; ch_size += 4; if(orgactive) orgaddr += 4;} -#define D_rword(w) {*chptr++=(uint8_t)w; *chptr++=(uint8_t)(w>>8); \ +#define D_quad(qw) {*chptr++=(uint8_t)((qw)>>56); \ + *chptr++=(uint8_t)((qw)>>48);\ + *chptr++=(uint8_t)((qw)>>40);\ + *chptr++=(uint8_t)((qw)>>32);\ + *chptr++=(uint8_t)((qw)>>24);\ + *chptr++=(uint8_t)((qw)>>16);\ + *chptr++=(uint8_t)((qw)>>8); \ + *chptr++=(uint8_t)(qw); \ + 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;} -//#define D_rlong(lw) {*chptr++=(uint8_t)(lw>>16);*chptr++=(uint8_t)(lw>>24);\ -// *chptr++=(uint8_t)lw;*chptr++=(uint8_t)(lw>>8); \ -// sloc+=4; ch_size += 4;if(orgactive) orgaddr += 4;} +#define D_single(w) {chcheck(4);*chptr++ = ((char *)&w)[3]; \ + *chptr++ = ((char *)&w)[2]; \ + *chptr++ = ((char *)&w)[1]; \ + *chptr++=((char *)&w)[0]; \ + sloc+=4; ch_size += 4; if(orgactive) orgaddr += 4;} +#define D_double(w) {chcheck(8);*chptr++=(char)((*(unsigned long long *)&w)); \ + *chptr++=(char)((*(unsigned long long *)&w)>>8); \ + *chptr++=(char)((*(unsigned long long *)&w)>>16); \ + *chptr++=(char)((*(unsigned long long *)&w)>>24); \ + *chptr++=(char)((*(unsigned long long *)&w)>>32); \ + *chptr++=(char)((*(unsigned long long *)&w)>>40); \ + *chptr++=(char)((*(unsigned long long *)&w)>>48); \ + *chptr++=(char)((*(unsigned long long *)&w)>>56); \ + sloc+=8; ch_size += 8; if(orgactive) orgaddr += 8;} +#ifdef _MSC_VER +#define D_extend(w) {chcheck(12); *chptr++ = (char)((*(unsigned long long *)&w) >> 56); \ +*chptr++ = (char)(((*(unsigned long long *)&w) >> (52)) & 0xf); \ +*chptr++ = (char)(0); \ +*chptr++ = (char)(0); \ +*chptr++ = (char)(((*(unsigned long long *)&w) >> (48 - 3))|0x80 /* assume that the number is normalised */); \ +*chptr++ = (char)((*(unsigned long long *)&w) >> (40 - 3)); \ +*chptr++ = (char)((*(unsigned long long *)&w) >> (32 - 3)); \ +*chptr++ = (char)((*(unsigned long long *)&w) >> (24 - 3)); \ +*chptr++ = (char)((*(unsigned long long *)&w) >> (16 - 3)); \ +*chptr++ = (char)((*(unsigned long long *)&w) >> (8 - 3)); \ +*chptr++ = (char)((*(unsigned long long *)&w << 3)); \ +*chptr++=(char)(0); \ + sloc+=12; ch_size += 12; if(orgactive) orgaddr += 12;} +#elif defined(LITTLE_ENDIAN) +#define D_extend(w) {chcheck(12);*chptr++=((char *)&w)[0]; \ + *chptr++=((char *)&w)[1]; \ + *chptr++=((char *)&w)[2]; \ + *chptr++=((char *)&w)[3]; \ + *chptr++=((char *)&w)[4]; \ + *chptr++=((char *)&w)[5]; \ + *chptr++=((char *)&w)[6]; \ + *chptr++=((char *)&w)[7]; \ + *chptr++=((char *)&w)[8]; \ + *chptr++=((char *)&w)[9]; \ + *chptr++=((char *)&w)[10]; \ + *chptr++=((char *)&w)[11]; \ + sloc+=12; ch_size += 12; if(orgactive) orgaddr += 12;} + +#else + +WARNING(Please implement a non-byte swapped D_extend!) +//stopgap for now, until this can be implemented proppa-ly :-P +#define D_extend(w) {chcheck(12); chptr+=12; sloc+=12; ch_size+=12; if(orgactive) orgaddr +=12;} + +#endif // Fill n bytes with zeroes #define D_ZEROFILL(n) {memset(chptr, 0, n); chptr+=n; sloc+=n; ch_size+=n;\ if (orgactive) orgaddr+=n;} @@ -59,19 +114,20 @@ // token.L expression list // (etc) // ENDEXPR.L (end of expression) -#define FUMASK 007 // Mask for fixup cases: -#define FU_QUICK 000 // Fixup 3-bit quick instr field -#define FU_BYTE 001 // Fixup byte -#define FU_WORD 002 // Fixup word -#define FU_WBYTE 003 // Fixup byte (at loc+1) -#define FU_LONG 004 // Fixup long -#define FU_BBRA 005 // Fixup byte branch -#define FU_6BRA 007 // Fixup 6502-format branch offset -#define FU_BYTEH 050 // Fixup 6502 high byte of immediate word -#define FU_BYTEL 051 // Fixup 6502 low byte of immediate word -#define FU_SEXT 010 // Ok to sign extend -#define FU_PCREL 020 // Subtract PC first -#define FU_EXPR 040 // Expression (not symbol) follows +#define FUMASK 0x000F // Mask for fixup cases: +#define FU_QUICK 0x0000 // Fixup 3-bit quick instruction field +#define FU_BYTE 0x0001 // Fixup byte +#define FU_WORD 0x0002 // Fixup word +#define FU_WBYTE 0x0003 // Fixup byte (at loc+1) +#define FU_LONG 0x0004 // Fixup long +#define FU_BBRA 0x0005 // Fixup byte branch +#define FU_6BRA 0x0007 // Fixup 6502-format branch offset +#define FU_BYTEH 0x0008 // Fixup 6502 high byte of immediate word +#define FU_BYTEL 0x0009 // Fixup 6502 low byte of immediate word + +#define FU_SEXT 0x0010 // Ok to sign extend +#define FU_PCREL 0x0020 // Subtract PC first +#define FU_EXPR 0x0040 // Expression (not symbol) follows #define FU_GLOBAL 0x0080 // Mark global symbol @@ -89,6 +145,12 @@ #define FU_LBRA 0x4000 // Long branch, for short branch detect #define FU_DONE 0x8000 // Fixup has been done +// FPU fixups +// TODO: these are obviously bogus for now! +#define FU_FLOATSING 0x0D0B // Fixup 32-bit float +#define FU_FLOATDOUB 0x0E0B // Fixup 64-bit float +#define FU_FLOATEXT 0x0F0B // Fixup 96-bit float + // Chunks are used to hold generated code and fixup records #define CHUNK struct _chunk CHUNK { @@ -112,6 +174,30 @@ SECT { CHUNK * sfix; // Last fixup chunk }; +// 680x0 defines +#define CPU_68000 1 +#define CPU_68020 2 +#define CPU_68030 4 +#define CPU_68040 8 +#define CPU_68060 16 +#define FPU_NONE 0 +#define FPU_68881 1 +#define FPU_68882 2 +#define FPU_68040 4 + +// Helper macros to test for active CPU +#define CHECK00 if (activecpu == CPU_68000) return error(unsupport) +#define CHECK20 if (activecpu == CPU_68020) return error(unsupport) +#define CHECK30 if (activecpu == CPU_68030) return error(unsupport) +#define CHECK40 if (activecpu == CPU_68040) return error(unsupport) +#define CHECK60 if (activecpu == CPU_68060) return error(unsupport) +#define CHECKNO00 if (activecpu != CPU_68000) return error(unsupport) +#define CHECKNO20 if (activecpu != CPU_68020) return error(unsupport) +#define CHECKNO30 if (activecpu != CPU_68030) return error(unsupport) +#define CHECKNO40 if (activecpu != CPU_68040) return error(unsupport) +#define CHECKNO60 if (activecpu != CPU_68060) return error(unsupport) + + // Globals, external etc extern uint32_t sloc; extern uint16_t scattr;