//
// 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 utilised with the kind permission of Landon Dyer
+// Source utilized with the kind permission of Landon Dyer
//
#ifndef __SECT_H__
#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++;}
*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;}
-#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
+
+// 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;\
+ 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;}
#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.
//
// 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
#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)
#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;
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__
projects / rmac / blobdiff