;; Read next word from the given stream into the PAD
pushr rsi
pop rax
+ pushr rax ; the stream
push qword p_pad_DFA
push qword 0
- push rax
p_read_word_skipblanks:
- DOFORTH p_dup, p_read_stream_char
+ DOFORTH p_Rget, p_read_stream_char
pop rbx
cmp bl,0
jl p_read_word_nomore
cmp bl,'#'
je p_read_word_skipline
p_read_word_readword:
- ;; ( buffer length stream )
- mov rax,qword [rsp+16]
- mov rcx,qword [rsp+8]
+ ;; ( buffer length )
+ mov rax,qword [rsp+8]
+ mov rcx,qword [rsp]
mov [rax+rcx],bl
- inc qword [rsp+8]
- DOFORTH p_dup, p_read_stream_char
+ inc qword [rsp]
+ DOFORTH p_Rget, p_read_stream_char ; ( -- buffer length char )
pop rbx
cmp bl,0
jl p_read_word_nomore
jg p_read_word_readword
p_read_word_nomore:
- pop rax
+ xor rbx,rbx
+ mov rax,qword [rsp+8]
+ mov rcx,qword [rsp]
+ mov [rax+rcx],bl ; add NUL ending
+ inc qword [rsp]
+ DOFORTH p_str2temp
+ dec qword [rsp]
+ popr rax
popr rsi
next
inc qword [rsp]
DOFORTH p_str2temp
dec qword [rsp]
- add qword [rsp+8],8 ; adjust pointer
popr rsi
next
WORD p_digits,'DIGITS',dovariable
db '0123456789abcdef'
- WORD p_dot,'.',fasm
+ WORD p_dot_temp,'.TEMP',fasm
;; ( v -- )
;; Print TOP value as unsigned BASE integer
pushr rsi
- mov rax,qword [rsp]
+ mov rdi,p_pad_DFA
+ pop rax
cmp rax,0
jge p_dot_positive
cmp qword [p_base_DFA],10
jne p_dot_positive
- push '-'
- DOFORTH p_emit
- mov rax,qword [rsp]
+ mov byte[rdi],'-'
+ inc rdi
neg rax
p_dot_positive:
+ call p_dot_pad_subr
+ xor rax,rax
+ stosb
+ push p_pad_DFA
+ sub rdi,p_pad_DFA
+ push rdi
+ DOFORTH p_str2temp
+ dec qword [rsp] ; don't count the ending NUL
+ popr rsi
+ next
+
+p_dot_pad_subr: ;
xor rdx,rdx
div qword [p_base_DFA] ; rdx:rax / BASE => q=rax, r=rdx
- mov qword [rsp],rdx
cmp rax,0
je p_dot_remainder
- push rax
- DOFORTH p_dot
-p_dot_remainder:
+ push rdx
+ call p_dot_pad_subr
pop rdx
+p_dot_remainder:
xor rax,rax
mov al,[p_digits_DFA+rdx]
- push rax
- DOFORTH p_emit
- popr rsi
- next
+ stosb
+ ret
+
+ WORD p_dot,'.'
+ ;; ( v -- )
+ ;; Print value to stdout
+ dq p_dot_temp, p_literal,1, p_fdtell, p_exit