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fix to bitfield code: contained non-portable shift

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ceriel 1989-10-09 13:42:39 +00:00
parent 9197c959dc
commit 8c9c04b549
1 changed files with 3 additions and 2 deletions
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5
lang/cem/cemcom/field.c
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@ -28,6 +28,7 @@
arith NewLocal(); /* util.c */ arith NewLocal(); /* util.c */
char *symbol2str(); /* symbol2str.c */ char *symbol2str(); /* symbol2str.c */
extern long full_mask[]; /* cstoper.c */
/* Eval_field() evaluates expressions involving bit fields. /* Eval_field() evaluates expressions involving bit fields.
The various instructions are not yet optimised in the expression The various instructions are not yet optimised in the expression
@ -72,7 +73,7 @@ eval_field(expr, code)
C_slu(asize); C_slu(asize);
else else
C_sli(asize); C_sli(asize);
C_loc(~((fd->fd_mask << fd->fd_shift) | (~0 << (8 * asize)))); C_loc(~((fd->fd_mask << fd->fd_shift) | ~full_mask[asize]));
if (leftop->ex_depth == 0) { /* simple case */ if (leftop->ex_depth == 0) { /* simple case */
load_val(leftop, RVAL); load_val(leftop, RVAL);
C_and(asize); C_and(asize);
@ -142,7 +143,7 @@ eval_field(expr, code)
C_slu(asize); C_slu(asize);
else else
C_sli(asize); C_sli(asize);
C_loc(~((fd->fd_mask << fd->fd_shift) | (~0 << (8 * asize)))); C_loc(~((fd->fd_mask << fd->fd_shift) | ~full_mask[asize]));
if (leftop->ex_depth == 0) { if (leftop->ex_depth == 0) {
load_val(leftop, RVAL); load_val(leftop, RVAL);
C_and(asize); C_and(asize);