additional part-cell primitives

[rrq/rrqforth.git] / memory.asm

diff --git a/memory.asm b/memory.asm
index 80ce28075e6c69a6e5523f3336ed7532a0dbe6f3..eb84af7feb42e98616bdfb6e9f01d2e1a5d47333 100644 (file)
--- a/memory.asm
+++ b/memory.asm
@@ -29,6 +29,13 @@
        push rax
        next
 
+       WORD p_cfa2tfa,'CFA>TFA',fasm
+       ;; ( cfa -- tfa )
+       pop rax
+       cfa2tfa rax
+       push rax
+       next
+
        WORD p_cfa2flags_get,'CFA>FLAGS@',fasm
        ;; ( cfa -- flags )
        pop rax
@@ -76,6 +83,40 @@
        mov byte [rax], bl
        next
 
+       WORD p_Wget, 'W@',fasm
+       ;; ( addr -- v )
+       ;; Load the (unsigned) double-byte v from address addr.
+       pop rax
+       mov bx,[rax]
+       push 0
+       mov word [rsp],bx
+       next
+       
+       WORD p_Wput, 'W!',fasm
+       ;; ( v addr -- )
+       ;; Store byte value v at address addr.
+       pop rax
+       pop rbx
+       mov word [rax], bx
+       next
+
+       WORD p_Dget, 'D@',fasm
+       ;; ( addr -- v )
+       ;; Load the (unsigned) double-byte v from address addr.
+       pop rax
+       mov ebx,[rax]
+       push 0
+       mov dword [rsp],ebx
+       next
+       
+       WORD p_Dput, 'D!',fasm
+       ;; ( v addr -- )
+       ;; Store byte value v at address addr.
+       pop rax
+       pop rbx
+       mov dword [rax], ebx
+       next
+
        WORD p_2get, '2@',fasm
        ;; ( addr -- v2 v1 )
        ;; Load the cell pair {v1,v2} from address addr.