X-Git-Url: https://git.rrq.au/?a=blobdiff_plain;f=rrqforth.asm;h=5187c902a06c7a202b08a4292bb98482d2a897e6;hb=12f5c95467140afef0635e1b0d3f283684db028d;hp=96b90837b5843ff0c3ee817b00c5d410e235144d;hpb=2970d5d687c74fc8d2f036300220005c4ee0603a;p=rrq%2Frrqforth.git diff --git a/rrqforth.asm b/rrqforth.asm index 96b9083..5187c90 100644 --- a/rrqforth.asm +++ b/rrqforth.asm @@ -133,7 +133,12 @@ previous_word = 0 pop rax jmp qword [rax] ; goto code of that FORTH word (64 bit jump) - WORD p_exit, 'EXIT',fasm + WORD p_sysexit, 'EXIT', + ;; ( v -- ) + ;; Terminate RRQFORTH with error code + dq sys_exit + + WORD p_return, 'RETURN',fasm ;; ( -- ) ( R: addr -- ) ;; Returns execution to the calling definition as per the ;; return stack. @@ -165,7 +170,7 @@ include 'temp.asm' include 'compile.asm' WORD p_program_version,'PROGRAM_VERSION',dostring - STRING 'RRQ Forth version 0.1 - 2021-05-22',10 + STRING 'RRQ Forth version 0.1 - 2021-06-05',10 WORD p_stdin,'STDIN',dovalue ;; Initialised to hold a STREAM for fd 0 @@ -190,7 +195,7 @@ p_lparen_loop: cmp rax,1 jne p_lparen_loop push rbx - push p_lbaren_rparen + push p_lparen_rparen push 1 DOFORTH p_strncmp pop rax @@ -199,7 +204,7 @@ p_lparen_loop: p_lparen_exit: popr rsi next -p_lbaren_rparen: db ')',0 +p_lparen_rparen: db ')',0 ;;; ******** The main entry point. ******** ;;; This could be set up as a WORD but it isn't @@ -240,6 +245,39 @@ main_is_verbose_loop: main_is_not_verbose: ret + WORD p_process_args_var,'PROCESS-ARGS-VAR',dovariable + ;; ( -- a ) + ;; Two cells for iterating and load the main args +p_process_args_ptr: dq 0 +p_process_args_end: dq 0 + + WORD p_process_args,'PROCESS-ARGS',fasm + pushr rsi + mov rax,qword [p_args_DFA] ; args* + mov rbx,qword [rax] ; count + shl rbx,3 + add rax,8 + add rbx,rax ; end + mov qword [p_process_args_end],rbx + add rax,8 + mov qword [p_process_args_ptr],rax +p_process_args_loop: + mov rax,qword [p_process_args_ptr] + cmp rax,qword [p_process_args_end] + jge p_process_args_done + add qword [p_process_args_ptr],8 + mov rax,qword [rax] + mov bl,[rax] + cmp bl,'-' + je p_process_args_loop + push rax + push rax + DOFORTH p_strlen, p_load_file, p_drop + jmp p_process_args_loop +p_process_args_done: + popr rsi + next + ;;; This word is also the last word before syscalls last_forth_word: WORD p_quit,'QUIT',fasm @@ -253,6 +291,7 @@ last_forth_word: push 10000 DOFORTH p_stream pop qword [p_stdin_DFA] ; Assign STDIN + DOFORTH p_process_args p_quit_INITIALIZED: ;; Setup INPUT from STDIN