Maxc Byte Lisp - Revision history

Jnc: New cat

2023-05-21T23:52:41Z

New cat

Larsbrinkhoff: 9-bit byte codes.

2023-05-12T08:26:26Z

9-bit byte codes.

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Larsbrinkhoff: /* Additional PDP-10 instructions */

2023-05-12T08:05:53Z

‎Additional PDP-10 instructions

Larsbrinkhoff: Maxc additional PDP-10 instructions for Lisp.

2023-05-12T08:05:18Z

Maxc additional PDP-10 instructions for Lisp.

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Notes about the [[Maxc]] '''Byte Lisp''' instructions, gleaned from microcode sources.

==Additional PDP-10 instructions==

It's not entirely clear, but it seems to me most of these are used in addition to the normal PDP-10 instruction set.

{| class="wikitable"
! Opcode
! Mnemonic
! Description
|-
| 107
| BLISP
|
|-
| 114
| RETFR
| Return from function
|-
| 115
| UPSHJ
| Dispatching UUO call
|-
| 116
| LDT
| Load type of pointer
|-
| 117
| BTLU
| Bit table lookup
|-
| 120
| BFRET
| Return to Byte Lisp function
|-
| 121
| CALLFN
| Call Lisp function
|-
| 247
| CHASE
|
|-
| 257
| REWIND
| Reverse shallow-deep bindings in a frame
|}

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 ==Additional PDP-10 instructions==
-It's not entirely clear, but it seems to me most of these are used in addition to the normal PDP-10 instruction set.
+It's not entirely clear, but it seems to me most of these are used in addition to the normal PDP-10 instruction set.  These are defined in the microcode source file '''lisp.mc'''.
 {| class="wikitable"