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| author | Kaz Kylheku <kaz@kylheku.com> | 2020-10-01 06:24:32 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2020-10-01 06:24:32 -0700 |
| commit | 161491beb0440bd63d9c956d1e0a6ef4a4c0c675 (patch) | |
| tree | 0cd678876993e663410b5c8c37cf84df45e0cde8 /genvmop.txr | |
| parent | 142306745269a3eb228aa3d79f595688f941a292 (diff) | |
| download | txr-161491beb0440bd63d9c956d1e0a6ef4a4c0c675.tar.gz txr-161491beb0440bd63d9c956d1e0a6ef4a4c0c675.tar.bz2 txr-161491beb0440bd63d9c956d1e0a6ef4a4c0c675.zip | |
vm: deprecate move-immediate instructions.
The movrsi, movrmi and movrbi (move immediate {small, medium,
big} to register) instructions are becoming deprecated.
The reasoning is that character and fixnum operands can just
go into a VM descriptor's data vector (D registers). Then they
can be referenced directly without wastefully issuing an extra
instruction.
* genvmop.txr: Add a deprecated comment next to the enum
constants of deprecated opcodes.
* share/txr/stdlib/asm.tl (oc-base): Add Boolean property
which indicates that an opcode is deprecated. This is a static
class variable, defaulting to nil in the base class.
(op-movrsi, op-movsmi, op-movrbi): Override base class
deprecated property with a true value.
* vmop.h: Regenerated.
Diffstat (limited to 'genvmop.txr')
| -rw-r--r-- | genvmop.txr | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/genvmop.txr b/genvmop.txr index a9d46165..73864d08 100644 --- a/genvmop.txr +++ b/genvmop.txr @@ -12,7 +12,8 @@ typedef enum vm_op { @ (repeat) - @{oc.symbol :filter :upcase} = @{oc.code}, + @{oc.symbol :filter :upcase} = @{oc.code},@(if oc.deprecated + " /* deprecated */") @ (end) } vm_op_t; @(end) |