X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=sect.h;h=3f6f28edfc55f1d7348935927fe8df2debeb0fae;hb=8a5d76b0e6c7433cdbdf3d612da5c209516cb594;hp=3cfbf6acee00501820814fbbe328e1d8f2ee264b;hpb=d1f5f1caccb26da6a3da7fc00b94b79000a55302;p=rmac diff --git a/sect.h b/sect.h index 3cfbf6a..3f6f28e 100644 --- a/sect.h +++ b/sect.h @@ -3,7 +3,7 @@ // SECT.H - Code Generation, Fixups and Section Management // 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 +// Source utilized with the kind permission of Landon Dyer // #ifndef __SECT_H__ @@ -11,7 +11,7 @@ #include "rmac.h" -// Macros to deposit code in the current section +// Macros to deposit code in the current section (in Big Endian) // D_rword deposits a "6502" format (low, high) word (01). #define D_byte(b) {*chptr++=(uint8_t)(b); sloc++; ch_size++; \ if(orgactive) orgaddr++;} @@ -23,8 +23,22 @@ *chptr++=(uint8_t)((lw)>>8); \ *chptr++=(uint8_t)(lw); \ sloc += 4; ch_size += 4; if(orgactive) orgaddr += 4;} +#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;} +// 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;\ + if (orgactive) orgaddr+=12;} + // Fill n bytes with zeroes #define D_ZEROFILL(n) {memset(chptr, 0, n); chptr+=n; sloc+=n; ch_size+=n;\ if (orgactive) orgaddr+=n;} @@ -86,6 +100,12 @@ #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 { @@ -119,6 +139,7 @@ SECT { #define FPU_68881 1 #define FPU_68882 2 #define FPU_68040 4 +#define FPU_68060 8 // Helper macros to test for active CPU #define CHECK00 if (activecpu == CPU_68000) return error(unsupport) @@ -131,7 +152,7 @@ SECT { #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) - +#define CHECKNOFPU if (!activefpu) return error(unsupport) // Globals, external etc extern uint32_t sloc;