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Diffstat (limited to 'opcodes/ip2k-asm.c')
-rw-r--r--opcodes/ip2k-asm.c393
1 files changed, 209 insertions, 184 deletions
diff --git a/opcodes/ip2k-asm.c b/opcodes/ip2k-asm.c
index c2163b0..6a1653b 100644
--- a/opcodes/ip2k-asm.c
+++ b/opcodes/ip2k-asm.c
@@ -49,6 +49,17 @@ static const char * parse_insn_normal
/* -- asm.c */
+#define PARSE_FUNC_DECL(name) \
+static const char *name PARAMS ((CGEN_CPU_DESC, const char **, int, long *))
+
+PARSE_FUNC_DECL (parse_fr);
+PARSE_FUNC_DECL (parse_addr16);
+PARSE_FUNC_DECL (parse_addr16_p);
+PARSE_FUNC_DECL (parse_addr16_cjp);
+PARSE_FUNC_DECL (parse_lit8);
+PARSE_FUNC_DECL (parse_bit3);
+
+
static const char *
parse_fr (cd, strp, opindex, valuep)
CGEN_CPU_DESC cd;
@@ -57,12 +68,12 @@ parse_fr (cd, strp, opindex, valuep)
long *valuep;
{
const char *errmsg;
- char *old_strp;
+ const char *old_strp;
char *afteroffset;
enum cgen_parse_operand_result result_type;
bfd_vma value;
extern CGEN_KEYWORD ip2k_cgen_opval_register_names;
- long tempvalue;
+ bfd_vma tempvalue;
old_strp = *strp;
afteroffset = NULL;
@@ -71,36 +82,37 @@ parse_fr (cd, strp, opindex, valuep)
/* Check here to see if you're about to try parsing a w as the first arg */
/* and return an error if you are. */
if ( (strncmp(*strp,"w",1)==0) || (strncmp(*strp,"W",1)==0) )
- {
- (*strp)++;
-
- if ( (strncmp(*strp,",",1)==0) || isspace(**strp) )
- {
- /* We've been passed a w. Return with an error message so that */
- /* cgen will try the next parsing option. */
- errmsg = _("W keyword invalid in FR operand slot.");
- return errmsg;
- }
- *strp = old_strp;
- }
+ {
+ (*strp)++;
+
+ if ( (strncmp(*strp,",",1)==0) || ISSPACE(**strp) )
+ {
+ /* We've been passed a w. Return with an error message so that */
+ /* cgen will try the next parsing option. */
+ errmsg = _("W keyword invalid in FR operand slot.");
+ return errmsg;
+ }
+ *strp = old_strp;
+ }
/* Attempt parse as register keyword. */
/* old_strp = *strp; */
- errmsg = cgen_parse_keyword (cd, strp, & ip2k_cgen_opval_register_names, valuep);
+ errmsg = cgen_parse_keyword (cd, strp, & ip2k_cgen_opval_register_names,
+ valuep);
if ( *strp != NULL )
- if (errmsg == NULL)
- return errmsg;
+ if (errmsg == NULL)
+ return errmsg;
/* Attempt to parse for "(IP)" */
afteroffset = strstr(*strp,"(IP)");
if ( afteroffset == NULL)
- {
- /* Make sure it's not in lower case */
- afteroffset = strstr(*strp,"(ip)");
- }
+ {
+ /* Make sure it's not in lower case */
+ afteroffset = strstr(*strp,"(ip)");
+ }
if ( afteroffset != NULL )
{
@@ -127,42 +139,44 @@ parse_fr (cd, strp, opindex, valuep)
afteroffset = strstr(*strp,"(DP)");
if ( afteroffset == NULL)
- {
- /* Maybe it's in lower case */
- afteroffset = strstr(*strp,"(dp)");
- }
+ {
+ /* Maybe it's in lower case */
+ afteroffset = strstr(*strp,"(dp)");
+ }
if ( afteroffset != NULL )
- {
- if ( afteroffset == *strp )
- {
- /* No offset present. Use 0 by default. */
- tempvalue = 0;
- errmsg = NULL;
- }
- else
- {
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_IP2K_FR_OFFSET,
- & result_type, & tempvalue);
- }
-
- if (errmsg == NULL)
- {
- if ( (tempvalue >= 0) && (tempvalue <= 127) )
- {
- /* Value is ok. Fix up the first 2 bits and return */
- *valuep = 0x0100 | tempvalue;
- *strp += 4; /* skip over the (DP) in *strp */
- return errmsg;
- } else
- {
- /* Found something there in front of (DP) but it's out of range. */
- errmsg = _("(DP) offset out of range.");
- return errmsg;
- }
-
- }
- }
+ {
+ if ( afteroffset == *strp )
+ {
+ /* No offset present. Use 0 by default. */
+ tempvalue = 0;
+ errmsg = NULL;
+ }
+ else
+ {
+ errmsg = cgen_parse_address (cd, strp, opindex,
+ BFD_RELOC_IP2K_FR_OFFSET,
+ & result_type, & tempvalue);
+ }
+
+ if (errmsg == NULL)
+ {
+ if (tempvalue <= 127)
+ {
+ /* Value is ok. Fix up the first 2 bits and return */
+ *valuep = 0x0100 | tempvalue;
+ *strp += 4; /* skip over the (DP) in *strp */
+ return errmsg;
+ }
+ else
+ {
+ /* Found something there in front of (DP) but it's out
+ of range. */
+ errmsg = _("(DP) offset out of range.");
+ return errmsg;
+ }
+ }
+ }
/* Attempt to parse for SP. ex: mov w, offset(SP) */
@@ -172,41 +186,44 @@ parse_fr (cd, strp, opindex, valuep)
afteroffset = strstr(*strp,"(SP)");
if (afteroffset == NULL)
- {
- /* Maybe it's in lower case. */
- afteroffset = strstr(*strp, "(sp)");
- }
+ {
+ /* Maybe it's in lower case. */
+ afteroffset = strstr(*strp, "(sp)");
+ }
if ( afteroffset != NULL )
- {
- if ( afteroffset == *strp )
- {
- /* No offset present. Use 0 by default. */
- tempvalue = 0;
- errmsg = NULL;
- }
- else
- {
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_IP2K_FR_OFFSET,
- & result_type, & tempvalue);
- }
- if (errmsg == NULL)
- {
- if ( (tempvalue >= 0) && (tempvalue <= 127) )
- {
- /* Value is ok. Fix up the first 2 bits and return */
- *valuep = 0x0180 | tempvalue;
- *strp += 4; /* skip over the (SP) in *strp */
- return errmsg;
- } else
- {
- /* Found something there in front of (SP) but it's out of range. */
- errmsg = _("(SP) offset out of range.");
- return errmsg;
- }
+ {
+ if ( afteroffset == *strp )
+ {
+ /* No offset present. Use 0 by default. */
+ tempvalue = 0;
+ errmsg = NULL;
+ }
+ else
+ {
+ errmsg = cgen_parse_address (cd, strp, opindex,
+ BFD_RELOC_IP2K_FR_OFFSET,
+ & result_type, & tempvalue);
+ }
+ if (errmsg == NULL)
+ {
+ if (tempvalue <= 127)
+ {
+ /* Value is ok. Fix up the first 2 bits and return */
+ *valuep = 0x0180 | tempvalue;
+ *strp += 4; /* skip over the (SP) in *strp */
+ return errmsg;
+ }
+ else
+ {
+ /* Found something there in front of (SP) but it's out
+ of range. */
+ errmsg = _("(SP) offset out of range.");
+ return errmsg;
+ }
- }
- }
+ }
+ }
/* Attempt to parse as an address. */
@@ -223,7 +240,8 @@ parse_fr (cd, strp, opindex, valuep)
{
errmsg = _("illegal use of parentheses");
}
- /* if a numeric value is specified, ensure that it is between 1 and 255 */
+ /* if a numeric value is specified, ensure that it is between
+ 1 and 255 */
else if (result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
{
if (value < 0x1 || value > 0xff)
@@ -243,12 +261,12 @@ parse_addr16 (cd, strp, opindex, valuep)
const char *errmsg;
enum cgen_parse_operand_result result_type;
bfd_reloc_code_real_type code = BFD_RELOC_NONE;
- long value;
+ bfd_vma value;
if ( opindex == (CGEN_OPERAND_TYPE)IP2K_OPERAND_ADDR16H )
- code = BFD_RELOC_IP2K_HI8DATA;
+ code = BFD_RELOC_IP2K_HI8DATA;
else if ( opindex == (CGEN_OPERAND_TYPE)IP2K_OPERAND_ADDR16L )
- code = BFD_RELOC_IP2K_LO8DATA;
+ code = BFD_RELOC_IP2K_LO8DATA;
else
{
/* Something is very wrong. opindex has to be one of the above. */
@@ -257,93 +275,94 @@ parse_addr16 (cd, strp, opindex, valuep)
}
errmsg = cgen_parse_address (cd, strp, opindex, code,
- & result_type, & value);
+ & result_type, & value);
if (errmsg == NULL)
{
- /* We either have a relocation or a number now. */
+ /* We either have a relocation or a number now. */
if ( result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER )
- {
- /* We got a number back. */
- if ( code == BFD_RELOC_IP2K_HI8DATA )
+ {
+ /* We got a number back. */
+ if ( code == BFD_RELOC_IP2K_HI8DATA )
value >>= 8;
- else /* code = BFD_RELOC_IP2K_LOW8DATA */
+ else /* code = BFD_RELOC_IP2K_LOW8DATA */
value &= 0x00FF;
- }
- *valuep = value;
- }
+ }
+ *valuep = value;
+ }
return errmsg;
}
- static const char *
- parse_addr16_p (cd, strp, opindex, valuep)
- CGEN_CPU_DESC cd;
- const char **strp;
- int opindex;
- long *valuep;
- {
- const char *errmsg;
- enum cgen_parse_operand_result result_type;
- bfd_reloc_code_real_type code = BFD_RELOC_IP2K_PAGE3;
- long value;
+static const char *
+parse_addr16_p (cd, strp, opindex, valuep)
+ CGEN_CPU_DESC cd;
+ const char **strp;
+ int opindex;
+ long *valuep;
+{
+ const char *errmsg;
+ enum cgen_parse_operand_result result_type;
+ bfd_reloc_code_real_type code = BFD_RELOC_IP2K_PAGE3;
+ bfd_vma value;
- errmsg = cgen_parse_address (cd, strp, opindex, code,
- & result_type, & value);
- if (errmsg == NULL)
- {
- if ( result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER )
- *valuep = (value >> 13) & 0x7;
- else if ( result_type == CGEN_PARSE_OPERAND_RESULT_QUEUED )
- *valuep = value;
- }
- return errmsg;
- }
-
-
- static const char *
- parse_addr16_cjp (cd, strp, opindex, valuep)
- CGEN_CPU_DESC cd;
- const char **strp;
- int opindex;
- long *valuep;
- {
- const char *errmsg;
- enum cgen_parse_operand_result result_type;
- bfd_reloc_code_real_type code = BFD_RELOC_NONE;
- long value;
+ errmsg = cgen_parse_address (cd, strp, opindex, code,
+ & result_type, & value);
+ if (errmsg == NULL)
+ {
+ if ( result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER )
+ *valuep = (value >> 13) & 0x7;
+ else if ( result_type == CGEN_PARSE_OPERAND_RESULT_QUEUED )
+ *valuep = value;
+ }
+ return errmsg;
+}
+
+
+static const char *
+parse_addr16_cjp (cd, strp, opindex, valuep)
+ CGEN_CPU_DESC cd;
+ const char **strp;
+ int opindex;
+ long *valuep;
+{
+ const char *errmsg;
+ enum cgen_parse_operand_result result_type;
+ bfd_reloc_code_real_type code = BFD_RELOC_NONE;
+ bfd_vma value;
- if ( opindex == (CGEN_OPERAND_TYPE)IP2K_OPERAND_ADDR16CJP )
- code = BFD_RELOC_IP2K_ADDR16CJP;
- else if ( opindex == (CGEN_OPERAND_TYPE)IP2K_OPERAND_ADDR16P )
- code = BFD_RELOC_IP2K_PAGE3;
-
- errmsg = cgen_parse_address (cd, strp, opindex, code,
- & result_type, & value);
- if (errmsg == NULL)
- {
- if ( result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER )
- {
- if ( (value & 0x1) == 0) /* If the address is even .... */
- {
- if ( opindex == (CGEN_OPERAND_TYPE)IP2K_OPERAND_ADDR16CJP )
+ if ( opindex == (CGEN_OPERAND_TYPE)IP2K_OPERAND_ADDR16CJP )
+ code = BFD_RELOC_IP2K_ADDR16CJP;
+ else if ( opindex == (CGEN_OPERAND_TYPE)IP2K_OPERAND_ADDR16P )
+ code = BFD_RELOC_IP2K_PAGE3;
+
+ errmsg = cgen_parse_address (cd, strp, opindex, code,
+ & result_type, & value);
+ if (errmsg == NULL)
+ {
+ if ( result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER )
+ {
+ if ( (value & 0x1) == 0) /* If the address is even .... */
+ {
+ if ( opindex == (CGEN_OPERAND_TYPE)IP2K_OPERAND_ADDR16CJP )
*valuep = (value >> 1) & 0x1FFF; /* Should mask be 1FFF? */
- else if ( opindex == (CGEN_OPERAND_TYPE)IP2K_OPERAND_ADDR16P )
+ else if ( opindex == (CGEN_OPERAND_TYPE)IP2K_OPERAND_ADDR16P )
*valuep = (value >> 14) & 0x7;
- }
+ }
else
errmsg = _("Byte address required. - must be even.");
- }else if ( result_type == CGEN_PARSE_OPERAND_RESULT_QUEUED )
- {
- /* This will happen for things like (s2-s1) where s2 and s1 */
- /* are labels. */
- *valuep = value;
- }
+ }
+ else if ( result_type == CGEN_PARSE_OPERAND_RESULT_QUEUED )
+ {
+ /* This will happen for things like (s2-s1) where s2 and s1
+ are labels. */
+ *valuep = value;
+ }
else
errmsg = _("cgen_parse_address returned a symbol. Literal required.");
- }
- return errmsg;
- }
+ }
+ return errmsg;
+}
static const char *
@@ -356,7 +375,7 @@ parse_lit8 (cd, strp, opindex, valuep)
const char *errmsg;
enum cgen_parse_operand_result result_type;
bfd_reloc_code_real_type code = BFD_RELOC_NONE;
- long value;
+ bfd_vma value;
/* Parse %OP relocating operators. */
if (strncmp (*strp, "%bank", 5) == 0)
@@ -444,33 +463,39 @@ parse_bit3 (cd, strp, opindex, valuep)
}
errmsg = cgen_parse_signed_integer (cd, strp, opindex, valuep);
- if (errmsg) {
+ if (errmsg)
return errmsg;
- }
- if (mode) {
- value = (unsigned long) *valuep;
- if (value == 0) {
- errmsg = _("Attempt to find bit index of 0");
- return errmsg;
- }
+ if (mode)
+ {
+ value = (unsigned long) *valuep;
+ if (value == 0)
+ {
+ errmsg = _("Attempt to find bit index of 0");
+ return errmsg;
+ }
- if (mode == 1) {
- count = 31;
- while ((value & 0x80000000) == 0) {
- count--;
- value <<= 1;
- }
- } else if (mode == 2) {
- count = 0;
- while ((value & 0x00000001) == 0) {
- count++;
- value >>= 1;
- }
- }
+ if (mode == 1)
+ {
+ count = 31;
+ while ((value & 0x80000000) == 0)
+ {
+ count--;
+ value <<= 1;
+ }
+ }
+ else if (mode == 2)
+ {
+ count = 0;
+ while ((value & 0x00000001) == 0)
+ {
+ count++;
+ value >>= 1;
+ }
+ }
- *valuep = count;
- }
+ *valuep = count;
+ }
return errmsg;
}
generated by cgit v1.1 at 2024-12-01 10:25:59 +0000