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author | Ken Raeburn <raeburn@cygnus> | 1993-05-17 19:04:58 +0000 |
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committer | Ken Raeburn <raeburn@cygnus> | 1993-05-17 19:04:58 +0000 |
commit | 09f080a55e46994c4177908b938faf045ed0da50 (patch) | |
tree | 9d12a7ccf3d598acda6953d533f39e4481d9318b /bfd | |
parent | 00312bc1b20cb42a8b3311e64f04cc7473a94c56 (diff) | |
download | gdb-09f080a55e46994c4177908b938faf045ed0da50.zip gdb-09f080a55e46994c4177908b938faf045ed0da50.tar.gz gdb-09f080a55e46994c4177908b938faf045ed0da50.tar.bz2 |
hppa assembler/disasm support routines
Diffstat (limited to 'bfd')
-rw-r--r-- | bfd/ChangeLog | 39 | ||||
-rw-r--r-- | bfd/hppa.c | 341 |
2 files changed, 380 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 6bc24ee..efe9229 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,5 +1,39 @@ +Mon May 17 15:00:33 1993 Ken Raeburn (raeburn@deneb.cygnus.com) + + * hppa.c (assemble_3, dis_assemble_3, assemble_12, + dis_assemble_12, assemble_17, dis_assemble_17, assemble_21, + dis_assemble_21, sign_ext, ones, sign_unext, low_sign_ext, + low_sign_unext, round_down, round, round_up, L, R, LS, RS, LD, RD, + LR, RR, hppa_field_adjust): New functions. + +Mon May 17 10:04:16 1993 Ian Lance Taylor (ian@cygnus.com) + + * coff-mips.c (ecoff_set_symbol_info): Added support for indirect + stabs symbols, including new indirect_ptr_ptr argument. + (ecoff_slurp_symbol_table): Pass new argument in calls to + ecoff_set_symbol_info. + +Fri May 14 00:05:06 1993 Ken Raeburn (raeburn@cambridge.cygnus.com) + + * configure.in: For m68k sysv systems, use m68k-coff. + + * config/hppa-elf.mt (TDEFINES): Don't define DEFAULT_VECTOR here. + (TDEFAULTS): Define it here. Use the new name. + + * elf32-hppa.c (elf_hppa_backend_data): Delete; rely on default + values instead. + + * reloc.c (bfd_reloc_code_real_type): Add some HPPA reloc types. + + * aix386-core.c (NO_GETS): Fix PROTO invocation to have correct + number of arguments. + (aix386_core_file_p): Initialize core_size to correct value. + Wed May 12 14:39:59 1993 Ian Lance Taylor (ian@cygnus.com) + * Makefile.in (CC_FOR_BUILD): New variable, set to $(CC). + (FLAGS_TO_PASS): Pass down CC_FOR_BUILD. + * bout.c (aout32_slurp_extended_name_table): Define to be _bfd_slurp_extended_name_table rather than bfd_true. @@ -15,6 +49,11 @@ Tue May 11 00:33:31 1993 John Gilmore (gnu@cygnus.com) * coff-m88k.c (m88kbcs_vec): Symbols have underbars. +Mon May 10 05:55:45 1993 Ken Raeburn (raeburn@kr-pc.cygnus.com) + + * hosts/miniframe.h: New file. + * configure.host: Use it. + Sun May 9 16:36:59 1993 Fred Fish (fnf@cygnus.com) * configure.in (hppa*-*-bsd): Change to hppa*-*-bsd* @@ -23,6 +23,10 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "bfd.h" #include "sysdep.h" +/* @@FIXME This is not a reasonable set of conditions to permit + cross-compilation, obviously. It also isn't enough to support hppa-elf + targets either. Can we eliminate the HPUX or BSD dependencies, or + at least get the conditionals more localized? */ #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) #include "libbfd.h" @@ -627,6 +631,343 @@ hppa_core_file_matches_executable_p (core_bfd, exec_bfd) { return true; /* FIXME, We have no way of telling at this point */ } + +/* Miscellaneous Support Functions -- Control Structures and Functions + for the PA. */ + +unsigned int assemble_3(x) + unsigned int x; +{ + return ( ( (x & 1 ) << 2 ) | ( ( x & 6 ) >> 1 ) ) & 7; +} + +void dis_assemble_3(x,r) + unsigned int x; + unsigned int *r; +{ + *r = ( ( (x & 4 ) >> 2 ) | ( ( x & 3 ) << 1 ) ) & 7; +} + +unsigned int assemble_12(x,y) + unsigned int x,y; +{ + return ( ( ( y & 1 ) << 11 ) | ( ( x & 1 ) << 10 ) | ( ( x & 0x7fe ) >> 1) ) & 0xfff; +} + +void dis_assemble_12(as12,x,y) + unsigned int as12; + unsigned int *x,*y; +{ + *y = ( as12 & 0x800 ) >> 11; + *x = ( ( as12 & 0x3ff ) << 1 ) | ( ( as12 & 0x400 ) >> 10 ); +} + +unsigned long assemble_17(x,y,z) + unsigned int x,y,z; +{ + unsigned long temp; + + temp = ( ( z & 1 ) << 16 ) | + ( ( x & 0x1f ) << 11 ) | + ( ( y & 1 ) << 10 ) | + ( ( y & 0x7fe ) >> 1); + return temp & 0x1ffff; +} + +void dis_assemble_17(as17,x,y,z) + unsigned int as17; + unsigned int *x,*y,*z; +{ + + *z = ( as17 & 0x10000 ) >> 16; + *x = ( as17 & 0x0f800 ) >> 11; + *y = ( ( ( as17 & 0x00400 ) >> 10 ) | ( ( as17 & 0x3ff ) << 1 ) ) & 0x7ff; +} + +unsigned long assemble_21(x) + unsigned int x; +{ + unsigned long temp; + + temp = ( ( x & 1 ) << 20 ) | + ( ( x & 0xffe ) << 8 ) | + ( ( x & 0xc000 ) >> 7 ) | + ( ( x & 0x1f0000 ) >> 14 ) | + ( ( x & 0x003000 ) >> 12 ); + return temp & 0x1fffff; +} + +void dis_assemble_21(as21,x) + unsigned int as21,*x; +{ + unsigned long temp; + + + temp = ( as21 & 0x100000 ) >> 20; + temp |= ( as21 & 0x0ffe00 ) >> 8; + temp |= ( as21 & 0x000180 ) << 7; + temp |= ( as21 & 0x00007c ) << 14; + temp |= ( as21 & 0x000003 ) << 12; + *x = temp; +} + +unsigned long sign_ext(x,len) + unsigned int x,len; +{ + unsigned int sign; + unsigned int result; + unsigned int len_ones; + int i; + + i = 0; + len_ones = 0; + while ( i < len ) { + len_ones = (len_ones << 1) | 1; + i++; + } + + sign = (x >> (len-1)) & 1; + + if ( sign ) + result = ( ~0 ^ len_ones ) | ( len_ones & x ); + else + result = len_ones & x; + + return result; +} + +static unsigned int ones(n) + int n; +{ + unsigned int len_ones; + int i; + + i = 0; + len_ones = 0; + while ( i < n ) { + len_ones = (len_ones << 1) | 1; + i++; + } + + return len_ones; +} + +void sign_unext(x,len,result) + unsigned int x,len; + unsigned int *result; +{ + unsigned int len_ones; + + len_ones = ones(len); + + *result = x & len_ones; +} + +unsigned long low_sign_ext(x,len) + unsigned int x,len; +{ + unsigned int temp1,temp2; + unsigned int len_ones; + + len_ones = ones(len); + + temp1 = ( x & 1 ) << (len-1); + temp2 = ( ( x & 0xfffffffe ) & len_ones ) >> 1; + return sign_ext( (temp1 | temp2),len); +} + +void low_sign_unext(x,len,result) + unsigned int x,len; + unsigned int *result; +{ + unsigned int temp; + unsigned int sign; + unsigned int rest; + unsigned int one_bit_at_len; + unsigned int len_ones; + + len_ones = ones(len); + one_bit_at_len = 1 << (len-1); + + sign_unext(x,len,&temp); + sign = temp & one_bit_at_len; + sign >>= (len-1); + + rest = temp & ( len_ones ^ one_bit_at_len ); + rest <<= 1; + + *result = rest | sign; +} + +/* These work when 'y' is a power of two only. */ + +long +round_down(x,y) +long x,y; +{ + return x & ~(y-1); +} + +long +round(x,y) +long x,y; +{ + return (x + y/2) & ~(y-1); +} + +long +round_up(x,y) +long x,y; +{ + return x - (x | ~(y-1)); +} + +/* L(Symbol, Addend): */ +/* round_down (Symbol + Addend, 2048) */ + +long +L(Symbol, Addend) +{ + return (round_down(Symbol + Addend, 2048)) >> 11; +} + +/* R(Symbol, Addend): */ +/* Symbol + Addend - round_down (Symbol + Addend, 2048) */ + +long +R(Symbol, Addend) +{ + return Symbol + Addend - round_down (Symbol + Addend, 2048); +} + +/* LS(Symbol, Addend): */ +/* round (Symbol + Addend, 2048) */ + +long +LS(Symbol, Addend) +{ + return round (Symbol + Addend, 2048); +} + +/* RS(Symbol, Addend): */ +/* Symbol + Addend - round (Symbol + Addend, 2048) */ + +long +RS(Symbol, Addend) +{ + return Symbol + Addend - round (Symbol + Addend, 2048); +} + +/* LD(Symbol, Addend): */ +/* round_up (Symbol + Addend, 2048) */ + +long +LD(Symbol, Addend) +{ + return (round_up (Symbol + Addend, 2048)) >> 11; +} + +/* RD(Symbol, Addend): */ +/* Symbol + Addend - round_up (Symbol + Addend, 2048) */ + +long +RD(Symbol, Addend) +{ + return Symbol + Addend - round_up (Symbol + Addend, 2048); +} + +/* LR(Symbol, Addend): */ +/* round_down (Symbol, 2048) + round (Addend, 8192) */ + +long +LR(Symbol, Addend) +{ + return (round_down (Symbol, 2048) + round (Addend, 8192)) >> 11; +} + +/* RR(Symbol, Addend): */ +/* Symbol - round_down (Symbol, 2048) + */ +/* Addend - round (Addend, 8192) */ + +long +RR(Symbol, Addend) +{ + return Symbol + - round_down (Symbol, 2048) + + Addend - round (Addend, 8192); +} + +unsigned long +DEFUN(hppa_field_adjust, (value,constant_value,r_field), + unsigned long value AND + unsigned long constant_value AND + unsigned short r_field) +{ + unsigned long init_value = value; + value += constant_value; + switch (r_field) { + case e_fsel: /* F : no change */ + break; + + case e_lssel: /* LS : if (bit 21) then add 0x800 + arithmetic shift right 11 bits */ + if ( value & 0x00000400 ) + value += 0x800; + value = (value & 0xfffff800) >> 11; + BFD_ASSERT(value == LS(init_value,constant_value)); + break; + + case e_rssel: /* RS : Sign extend from bit 21 */ + if ( value & 0x00000400 ) + value |= 0xfffff800; + else + value &= 0x7ff; + BFD_ASSERT(value == RS(init_value,constant_value)); + break; + + case e_lsel: /* L : Arithmetic shift right 11 bits */ + value = (value & 0xfffff800) >> 11; + BFD_ASSERT(value == L(init_value,constant_value)); + break; + + case e_rsel: /* R : Set bits 0-20 to zero */ + value = value & 0x7ff; + BFD_ASSERT(value == R(init_value,constant_value)); + break; + + case e_ldsel: /* LD : Add 0x800, arithmetic shift + right 11 bits */ + value += 0x800; + value = (value & 0xfffff800) >> 11; + BFD_ASSERT(value == LD(init_value,constant_value)); + break; + + case e_rdsel: /* RD : Set bits 0-20 to one */ + value |= 0xfffff800; + BFD_ASSERT(value == RD(init_value,constant_value)); + break; + + case e_lrsel: /* LR : L with "rounded" constant */ + value = value + ((constant_value + 0x1000) & 0xffffe000); + value = (value & 0xfffff800) >> 11; + BFD_ASSERT(value == LR(init_value,constant_value)); + break; + + case e_rrsel: /* RR : R with "rounded" constant */ + value = value + ((constant_value + 0x1000) & 0xffffe000); + value = (value & 0x7ff) + constant_value - ((constant_value + 0x1000) & 0xffffe000); + BFD_ASSERT(value == RR(init_value,constant_value)); + break; + + default: + fprintf(stderr,"Unrecognized field_selector 0x%02x\n", r_field); + break; + } + return value; + +} + +/* End of miscellaneous support functions. */ #endif /* HOST_HPPAHPUX */ #ifdef HOST_HPPABSD |