#include <stdio.h>
#include <string.h>
-#include <alloc.h>
#include "aslink.h"
/*)Module lkrloc.c
* perform the relocation calculations.
*
* lkrloc.c contains the following functions:
- * addr_t adb_b()
- * addr_t adb_lo()
- * addr_t adb_hi()
- * addr_t adw_w()
- * addr_t adw_lo()
- * addr_t adw_hi()
+ * Addr_T adb_b()
+ * Addr_T adb_lo()
+ * Addr_T adb_hi()
+ * Addr_T adw_w()
+ * Addr_T adw_lo()
+ * Addr_T adw_hi()
* VOID erpdmp()
* VOID errdmp()
- * addr_t evword()
+ * Addr_T evword()
* VOID prntval()
* VOID rele()
* VOID relerr()
*
*/
+/* Global which holds the upper 16 bits of the last 32 bit area adress
+ * output. Useful only for iHex mode.
+ */
+int lastExtendedAddress=-1;
+
+/* Static variable which holds the index of last processed area.
+ * Useful only for iHex mode.
+ */
+static int lastAreaIndex = -1;
+
/*)Function VOID reloc(c)
*
* char c process code
* int lkerr error flag
* int mode relocation mode
* adrr_t paga paging base area address
- * addr_t pags paging symbol address
- * addr_t pc relocated base address
- * addr_t r PCR relocation value
- * addr_t reli relocation initial value
- * addr_t relv relocation final value
+ * Addr_T pags paging symbol address
+ * Addr_T pc relocated base address
+ * Addr_T r PCR relocation value
+ * Addr_T reli relocation initial value
+ * Addr_T relv relocation final value
* int rindex symbol / area index
- * addr_t rtbase base code address
- * addr_t rtofst rtval[] index offset
+ * Addr_T rtbase base code address
+ * Addr_T rtofst rtval[] index offset
* int rtp index into T data
* sym **s pointer to array of symbol pointers
*
* FILE *stderr standard error device
*
* called functions:
- * addr_t adb_b() lkrloc.c
- * addr_t adb_lo() lkrloc.c
- * addr_t adb_hi() lkrloc.c
- * addr_t adw_w() lkrloc.c
- * addr_t evword() lkrloc.c
+ * Addr_T adb_b() lkrloc.c
+ * Addr_T adb_lo() lkrloc.c
+ * Addr_T adb_hi() lkrloc.c
+ * Addr_T adw_w() lkrloc.c
+ * Addr_T evword() lkrloc.c
* int eval() lkeval.c
* int fprintf() c_library
* VOID ihx() lkihx.c
relr()
{
register int mode;
- register addr_t reli, relv;
+ register Addr_T reli, relv;
int aindex, rindex, rtp, error;
- addr_t r, rtbase, rtofst, paga, pags, pc;
+ Addr_T r, rtbase, rtofst, paga, pags, pc;
struct areax **a;
struct sym **s;
*/
pc = adw_w(a[aindex]->a_addr, 0);
+ #if 0
+ printf("area %d base address: 0x%x size: 0x%x rtbase: 0x%x\n", aindex,
+ a[aindex]->a_addr, a[aindex]->a_size, rtbase);
+ #endif
/*
* Do remaining relocations
*/
while (more()) {
error = 0;
mode = eval();
+
+ if ((mode & R_ESCAPE_MASK) == R_ESCAPE_MASK)
+ {
+ mode = ((mode & ~R_ESCAPE_MASK) << 8) | eval();
+ /* printf("unescaping rmode\n"); */
+ }
+
rtp = eval();
rindex = evword();
/*
* R_PAG0 or R_PAG addressing
*/
- if (mode & (R_PAG0|R_PAG)) {
+ if (mode & (R_PAG0 | R_PAG)) {
paga = sdp.s_area->a_addr;
pags = sdp.s_addr;
reli -= paga + pags;
* R_BYTE or R_WORD operation
*/
if (mode & R_BYTE) {
- if (mode & R_BYT2) {
+ if (mode & R_BYT3)
+ {
+ /* This is a three byte address, of which
+ * we will select one byte.
+ */
+ if (mode & R_HIB)
+ {
+ /* printf("24 bit address selecting hi byte.\n"); */
+ relv = adb_24_hi(reli, rtp);
+ }
+ else if (mode & R_MSB)
+ {
+ /* Note that in 24 bit mode, R_MSB
+ * is really the middle byte, not
+ * the most significant byte.
+ *
+ * This is ugly and I can only apologize
+ * for any confusion.
+ */
+ /* printf("24 bit address selecting middle byte.\n"); */
+ relv = adb_24_mid(reli, rtp);
+ }
+ else
+ {
+ /* printf("24 bit address selecting lo byte.\n"); */
+ relv = adb_24_lo(reli, rtp);
+ }
+ }
+ else if (mode & R_BYT2) {
+ /* This is a two byte address, of
+ * which we will select one byte.
+ */
if (mode & R_MSB) {
relv = adb_hi(reli, rtp);
} else {
} else {
relv = adb_b(reli, rtp);
}
- } else if (mode & R_J11) {
+ } else if (IS_R_J11(mode)) {
/* JLH: 11 bit jump destination for 8051. Forms
/ two byte instruction with op-code bits
/ in the MIDDLE!
rtval[rtp] = ((rtval[rtp] & 0x07)<<5) | rtval[rtp+2];
rtflg[rtp+2] = 0;
rtofst += 1;
- } else {
- /*
- * R_WORD with the R_BYT2 mode is flagged
- * as an 'r' error by the assembler,
- * but it is processed here anyway.
+ }
+ else if (IS_R_J19(mode)) {
+ /* 19 bit jump destination for DS80C390. Forms
+ / three byte instruction with op-code bits
+ / in the MIDDLE!
+ / rtp points at 4 byte locus: first three
+ / will get the instructiion. fourth one
+ / has raw op-code.
*/
-#if 0
- /* JLH: R_WORD and R_BYT2 together is now subsumed by R_J11 */
- if (mode & R_BYT2) {
- if (mode & R_MSB) {
- relv = adw_hi(reli, rtp);
- } else {
- relv = adw_lo(reli, rtp);
+ /* Calculate absolute destination
+ / relv must be on same 512K page as pc
+ */
+ relv = adw_24(reli, rtp);
+
+ if ((relv & ~0x7ffff) != ((pc + rtp - rtofst) & ~0x7ffff)) {
+ error = 2;
}
- } else {
- relv = adw_w(reli, rtp);
+
+ /* Merge MSB (byte 0) with op-code, ignoring
+ / top 5 bits of address. Then hide the op-code
+ */
+ rtval[rtp] = ((rtval[rtp] & 0x07)<<5) | rtval[rtp+3];
+ rtflg[rtp+3] = 0;
+ rtofst += 1;
+ }
+ else if (IS_C24(mode))
+ {
+ /* 24 bit address */
+ relv = adw_24(reli, rtp);
}
-#else
+ else
+ {
+ /* 16 bit address. */
relv = adw_w(reli, rtp);
-#endif
}
/*
*/
if (mode & R_PCR && mode & R_BYTE) {
r = relv & ~0x7F;
- if (r != (addr_t) ~0x7F && r != 0)
+ if (r != (Addr_T) ~0x7F && r != 0)
error = 2;
}
/* JLH: output only if data (beyond two byte address) */
if ((oflag == 1) && (rtcnt > 2)) {
+ int extendedAddress = (a[aindex]->a_addr >> 16) & 0xffff;
+
+ /* Boy, is this a hack: for ABS sections, the
+ * base address is stored as zero, and the T records
+ * indicate the offset from zero.
+ *
+ * Since T records can only indicate a 16 bit offset, this
+ * obviously creates a problem for ABS segments located
+ * above 64K (this is only meaningful in flat24 mode).
+ *
+ * However, the size of an ABS area is stored as
+ * base address + section size (I suspect this is a bug,
+ * but it's a handy one right now). So the upper 8 bits of
+ * the 24 bit address are stored in the size record.
+ * Thus we add it in.
+ *
+ * This is another reason why we can't have areas greater
+ * than 64K yet, even in flat24 mode.
+ */
+ // extendedAddress += ((a[aindex]->a_size) >> 16 & 0xffff);
+ // commented out by jr
+
+ if (lastAreaIndex != aindex) {
+ lastAreaIndex = aindex;
+ newArea();
+ }
+
+ if (extendedAddress != lastExtendedAddress)
+ {
+
+ if (lastExtendedAddress!=-1) {
+ printf("output extended linear address record 0x%x 0x%x\n",
+ extendedAddress, lastExtendedAddress);
+ }
+
+ if (rflag)
+ {
+ ihxEntendedLinearAddress(extendedAddress);
+ }
+ else if (extendedAddress)
+ {
+ /* Not allowed to generate extended address records,
+ * but one is called for here...
+ */
+ fprintf(stderr,
+ "warning: extended linear address encountered; "
+ "you probably want the -r flag.\n");
+ }
+ lastExtendedAddress = extendedAddress;
+ }
ihx(1);
} else
if ((oflag == 2) && (rtcnt > 2)) {
* areax **a pointer to array of area pointers
* int aindex area index
* int mode relocation mode
- * addr_t relv relocation value
+ * Addr_T relv relocation value
* int rindex symbol / area index
* int rtp index into T data
* sym **s pointer to array of symbol pointers
* FILE *stderr standard error device
*
* called functions:
- * addr_t adw_w() lkrloc.c
- * addr_t evword() lkrloc.c
+ * Addr_T adw_w() lkrloc.c
+ * Addr_T evword() lkrloc.c
* int eval() lkeval.c
* int fprintf() c_library
* int more() lklex.c
{
register int aindex, rindex;
int mode, rtp;
- addr_t relv;
+ Addr_T relv;
struct areax **a;
struct sym **s;
}
}
-/*)Function addr_t evword()
+/*)Function Addr_T evword()
*
* The function evword() combines two byte values
* into a single word value.
*
* local variable:
- * addr_t v temporary evaluation variable
+ * Addr_T v temporary evaluation variable
*
* global variables:
* hilo byte ordering parameter
*
*/
-addr_t
+Addr_T
evword()
{
- register addr_t v;
+ register Addr_T v;
if (hilo) {
v = (eval() << 8);
return(v);
}
-/*)Function addr_t adb_b(v, i)
+/*)Function Addr_T adb_b(v, i)
*
* int v value to add to byte
* int i rtval[] index
*
*/
-addr_t
+Addr_T
adb_b(v, i)
-register addr_t v;
+register Addr_T v;
register int i;
{
return(rtval[i] += v);
}
-/*)Function addr_t adb_lo(v, i)
+/*)Function Addr_T adb_lo(v, i)
*
* int v value to add to byte
* int i rtval[] index
* The MSB rtflg[] is cleared.
*
* local variable:
- * addr_t j temporary evaluation variable
+ * Addr_T j temporary evaluation variable
*
* global variables:
* hilo byte ordering parameter
*
*/
-addr_t
+Addr_T
adb_lo(v, i)
-addr_t v;
+Addr_T v;
int i;
{
- register addr_t j;
+ register Addr_T j;
j = adw_w(v, i);
/*
return (j);
}
-/*)Function addr_t adb_hi(v, i)
+/*)Function Addr_T adb_hi(v, i)
*
* int v value to add to byte
* int i rtval[] index
* The LSB rtflg[] is cleared.
*
* local variable:
- * addr_t j temporary evaluation variable
+ * Addr_T j temporary evaluation variable
*
* global variables:
* hilo byte ordering parameter
*
*/
-addr_t
+Addr_T
adb_hi(v, i)
-addr_t v;
+Addr_T v;
int i;
{
- register addr_t j;
+ register Addr_T j;
j = adw_w(v, i);
/*
return (j);
}
-/*)Function addr_t adw_w(v, i)
+/*)Function Addr_T adb_24_hi(v, i)
+ *
+ * int v value to add to byte
+ * int i rtval[] index
+ *
+ * The function adb_24_hi() adds the value of v to the
+ * 24 bit value contained in rtval[i] - rtval[i+2].
+ * The new value of rtval[i] / rtval[i+1] is returned.
+ * The LSB & middle byte rtflg[] is cleared.
+ *
+ * local variable:
+ * Addr_T j temporary evaluation variable
+ *
+ * global variables:
+ * hilo byte ordering parameter
+ *
+ * called functions:
+ * none
+ *
+ * side effects:
+ * The value of rtval[] is changed.
+ * The rtflg[] value corresponding to the
+ * LSB & middle byte of the word value is cleared to
+ * reflect the fact that the MSB is the selected byte.
+ *
+ */
+
+Addr_T
+adb_24_hi(Addr_T v, int i)
+{
+ register Addr_T j;
+
+ j = adw_24(v, i);
+
+ /* Remove the lower two bytes. */
+ if (hilo)
+ {
+ rtflg[i+2] = 0;
+ }
+ else
+ {
+ rtflg[i] = 0;
+ }
+ rtflg[i+1] = 0;
+
+ return (j);
+}
+
+/*)Function Addr_T adb_24_mid(v, i)
+ *
+ * int v value to add to byte
+ * int i rtval[] index
+ *
+ * The function adb_24_mid() adds the value of v to the
+ * 24 bit value contained in rtval[i] - rtval[i+2].
+ * The new value of rtval[i] / rtval[i+1] is returned.
+ * The LSB & MSB byte rtflg[] is cleared.
+ *
+ * local variable:
+ * Addr_T j temporary evaluation variable
+ *
+ * global variables:
+ * hilo byte ordering parameter
+ *
+ * called functions:
+ * none
+ *
+ * side effects:
+ * The value of rtval[] is changed.
+ * The rtflg[] value corresponding to the
+ * LSB & MSB of the 24 bit value is cleared to reflect
+ * the fact that the middle byte is the selected byte.
+ *
+ */
+
+Addr_T
+adb_24_mid(Addr_T v, int i)
+{
+ register Addr_T j;
+
+ j = adw_24(v, i);
+
+ /* remove the MSB & LSB. */
+ rtflg[i+2] = 0;
+ rtflg[i] = 0;
+
+ return (j);
+}
+
+/*)Function Addr_T adb_24_lo(v, i)
+ *
+ * int v value to add to byte
+ * int i rtval[] index
+ *
+ * The function adb_24_lo() adds the value of v to the
+ * 24 bit value contained in rtval[i] - rtval[i+2].
+ * The new value of rtval[i] / rtval[i+1] is returned.
+ * The MSB & middle byte rtflg[] is cleared.
+ *
+ * local variable:
+ * Addr_T j temporary evaluation variable
+ *
+ * global variables:
+ * hilo byte ordering parameter
+ *
+ * called functions:
+ * none
+ *
+ * side effects:
+ * The value of rtval[] is changed.
+ * The rtflg[] value corresponding to the
+ * MSB & middle byte of the word value is cleared to
+ * reflect the fact that the LSB is the selected byte.
+ *
+ */
+
+Addr_T
+adb_24_lo(Addr_T v, int i)
+{
+ register Addr_T j;
+
+ j = adw_24(v, i);
+
+ /* Remove the upper two bytes. */
+ if (hilo)
+ {
+ rtflg[i] = 0;
+ }
+ else
+ {
+ rtflg[i+2] = 0;
+ }
+ rtflg[i+1] = 0;
+
+ return (j);
+}
+
+/*)Function Addr_T adw_w(v, i)
*
* int v value to add to word
* int i rtval[] index
* The new value of rtval[i] / rtval[i+1] is returned.
*
* local variable:
- * addr_t j temporary evaluation variable
+ * Addr_T j temporary evaluation variable
*
* global variables:
* hilo byte ordering parameter
*
*/
-addr_t
+Addr_T
adw_w(v, i)
-register addr_t v;
+register Addr_T v;
register int i;
{
- register addr_t j;
+ register Addr_T j;
if (hilo) {
j = v + (rtval[i] << 8) + (rtval[i+1] & 0xff);
return(j);
}
-/*)Function addr_t adw_lo(v, i)
+/*)Function Addr_T adw_24(v, i)
+ *
+ * int v value to add to word
+ * int i rtval[] index
+ *
+ * The function adw_w() adds the value of v to the
+ * 24 bit value contained in rtval[i] - rtval[i+2].
+ * The new value of rtval[i] - rtval[i+2] is returned.
+ *
+ * local variable:
+ * Addr_T j temporary evaluation variable
+ *
+ * global variables:
+ * hilo byte ordering parameter
+ *
+ * called functions:
+ * none
+ *
+ * side effects:
+ * The word value of rtval[] is changed.
+ *
+ */
+Addr_T
+adw_24(Addr_T v, int i)
+{
+ register Addr_T j;
+
+ if (hilo) {
+ j = v + ((rtval[i] & 0xff) << 16)
+ + ((rtval[i+1] & 0xff) << 8)
+ + (rtval[i+2] & 0xff);
+ rtval[i] = (j >> 16) & 0xff;
+ rtval[i+1] = (j >> 8) & 0xff;
+ rtval[i+2] = j & 0xff;
+ } else {
+ j = v + (rtval[i] & 0xff)
+ + ((rtval[i+1] & 0xff) << 8)
+ + ((rtval[i+2] & 0xff) << 16);
+ rtval[i] = j & 0xff;
+ rtval[i+1] = (j >> 8) & 0xff;
+ rtval[i+2] = (j >> 16) & 0xff;
+ }
+ return(j);
+}
+
+/*)Function Addr_T adw_lo(v, i)
*
* int v value to add to byte
* int i rtval[] index
* The MSB rtval[] is zeroed.
*
* local variable:
- * addr_t j temporary evaluation variable
+ * Addr_T j temporary evaluation variable
*
* global variables:
* hilo byte ordering parameter
*
*/
-addr_t
+Addr_T
adw_lo(v, i)
-addr_t v;
+Addr_T v;
int i;
{
- register addr_t j;
+ register Addr_T j;
j = adw_w(v, i);
/*
return (j);
}
-/*)Function addr_t adw_hi(v, i)
+/*)Function Addr_T adw_hi(v, i)
*
* int v value to add to byte
* int i rtval[] index
* The MSB rtval[] is zeroed.
*
* local variable:
- * addr_t j temporary evaluation variable
+ * Addr_T j temporary evaluation variable
*
* global variables:
* hilo byte ordering parameter
*
*/
-addr_t
+Addr_T
adw_hi(v, i)
-addr_t v;
+Addr_T v;
int i;
{
- register addr_t j;
+ register Addr_T j;
j = adw_w(v, i);
/*
/*)Function VOID prntval(fptr, v)
*
* FILE *fptr output file handle
- * addr_t v value to output
+ * Addr_T v value to output
*
* The function prntval() outputs the value v, in the
* currently selected radix, to the device specified
VOID
prntval(fptr, v)
FILE *fptr;
-addr_t v;
+Addr_T v;
{
if (xflag == 0) {
fprintf(fptr, "%04X\n", v);
projects / fw / sdcc / blobdiff