diff options
Diffstat (limited to 'as/genbin.c')
| -rw-r--r-- | as/genbin.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/as/genbin.c b/as/genbin.c index a36e6a2..377c6bf 100644 --- a/as/genbin.c +++ b/as/genbin.c @@ -10,9 +10,20 @@ PRIVATE char *asmbeg; /* beginning of assembler code */ /* for overwrite check */ /* bss-init to zero = NULL and not changed */ + +/* Sneaky stuff, the start of a binary file can be _negative_ for the I80386 + assembler. The -ve addresses are ones over 2GB (or "org -32") */ +#ifdef I80386 +PRIVATE soffset_t binfbuf; /* binary code buffer for file (counter) */ +PRIVATE soffset_t binmax; /* maximum value of binmbuf for pass 1 */ +PRIVATE soffset_t binmin; /* minimum value of binmbuf for pass 1 */ +#define PT soffset_t +#else PRIVATE offset_t binfbuf; /* binary code buffer for file (counter) */ PRIVATE offset_t binmax; /* maximum value of binmbuf for pass 1 */ PRIVATE offset_t binmin; /* minimum value of binmbuf for pass 1 */ +#define PT offset_t +#endif FORWARD void putbinoffset P((offset_t offset, count_t size)); @@ -170,7 +181,11 @@ PUBLIC void genbin() PUBLIC void initbin() { +#ifdef I80386 + binmin = ((offset_t)-1 >>1); /* greater than anything */ +#else binmin = -1; /* greater than anything */ +#endif } /* write char to binary file or directly to memory */ @@ -182,15 +197,16 @@ opcode_pt ch; { if (!binaryc) /* pass 1, just record limits */ { - if (binmbuf < binmin) + if ((PT)binmbuf < binmin) binmin = binmbuf; - if (++binmbuf > binmax) + binmbuf++; + if ((PT)binmbuf > binmax) binmax = binmbuf; } else { #if 0 - if (binfbuf > binmbuf) + if (binfbuf > (PT)binmbuf) { error(BWRAP); /* file buffer ahead of memory buffer */ } @@ -198,12 +214,12 @@ opcode_pt ch; #endif { outfd = binfil; - if( binfbuf != binmbuf) - if( lseek(binfil, (long)(binmbuf-binfbuf), 1) < 0 ) + if( binfbuf != (PT)binmbuf) + if( lseek(binfil, (long)((PT)binmbuf-binfbuf), 1) < 0 ) error(BWRAP); binfbuf = binmbuf; #if 0 - while (binfbuf < binmbuf) + while (binfbuf < (PT)binmbuf) { writec(0x0);/* pad with nulls if file buffer behind */ ++binfbuf; |