vm/asm: reconfiguration of display dimensions.

Increasing the maximum frame width from 256 to 1024 words;
and reducing the max display depth from 256 to 64 frames.
Small operands use a 4:6 split: the first 64 words
of the first 16 levels can be accessed with a 10
bit operand.

* share/txr/stdlib/asm.tl (parse-operand): Adjust to
wider syntax for registers due to more digits.
The v registers are 5 hex digits now: 2 digit level,
and a 3 digit offset.
(with-lev-idx): New macro.
(operand-to-sym): Use with-lev-idx and rename variables
to lv and ix.
(small-op-p, enc-op-p, small-op-to-sym): Rewrite for 4:6 small
operand.

* share/txr/stdlib/vm-param.tl (%lev-size%, %lev-bits%,
%max-lev%): Adjust values.
(%sm-lev-size%, %max-sm-lev-idx%, sm-lev-bits%): New symbol
macros.

* vm.c (VM_LEV_BITS, VM_LEV_MASK, VM_SM_LEV_BITS,
VM_SM_LEV_MASK): Values adjusted.

0 files changed, 0 insertions, 0 deletions