//
-// 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
//
// 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); \
*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_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
+
+#error Please implement a non-byte swapped D_extend!
+
+#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;}
// token.L expression list
// (etc)
// ENDEXPR.L (end of expression)
-#define FUMASK 0x000F // Mask for fixup cases:(shouldn't this be $7F?)
+#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_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 {
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;
projects / rmac / blobdiff