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Some bugfixes

Bugfix on error printing
RAZ numeric token size counter
Add a custom error for unknown OP
Yann Weber hace 5 años
padre
commit
2d28b2457d
Se han modificado 1 ficheros con 29 adiciones y 6 borrados
  1. 29
    6
      yaglitch.asm

+ 29
- 6
yaglitch.asm Ver fichero

@@ -68,6 +68,7 @@ section .data
68 68
 	def_str syntax_error, {"Syntax error", 0xA}
69 69
 	def_str bigline_error, {"Line with more than 16 tokens !", 0xA}
70 70
 	def_str nl_error, {"Character \n is not the last one", 0xA}
71
+	def_str badop_error, {"Bad OP", 0xA}
71 72
 
72 73
 	;
73 74
 	; Old stuff for first oscillator
@@ -265,8 +266,9 @@ parse:
265 266
 		mov rax, OP.numeric
266 267
 		stosq
267 268
 		xor rax, rax
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+		xor r11, r11 ; numeric token length raz
268 270
 		xchg rax, rdx
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-		shl rax, 32
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+		shl rax, 32 ; shl to allow reading as dword ?
270 272
 		stosq
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 		pop rax
272 274
 		.match_op:
@@ -275,7 +277,7 @@ parse:
275 277
 			add rax, op_ptrs
276 278
 			mov rax, [rax]
277 279
 			test rax, rax
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-			jz exit.syntax_error
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+			jz exit.bad_op
279 281
 			jmp .end_op
280 282
 	
281 283
 	.no_nl: ; TODO : print warning
@@ -425,16 +427,23 @@ exit:
425 427
 		mov rdx, bigline_error_len
426 428
 		push qword 2
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 		jmp exit.parse_error
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+	.bad_op:
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+		mov rsi, badop_error
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+		mov rdx, badop_error_len
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+		push qword 2
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+		jmp exit.parse_error
428 435
 	.parse_error:
429 436
 		; print error lineno & chrno
430
-		push rsi
437
+		push rsi ; source ptr
431 438
 		push rdx
432
-		push rbx
439
+		push rbx ; chrno in line
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+		sub r14, rsi ; chr count
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+		push 14
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 		mov rdi, "chr:0x"
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 		mov rsi, 6
435 444
 		call short_err
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-		mov rdi, r15
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-		sub rdi, [rsp+(8*3)]
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+		pop rdi ; chr count
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+		mov rsi, 2
438 447
 		call print_hnum
439 448
 		mov rdi, ",line:0x"
440 449
 		mov rsi, 8
@@ -660,7 +669,14 @@ OP:
660 669
 		ret
661 670
 	.div:
662 671
 		call .prep_2arg
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+		test ebx, ebx
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+		jz .nodiv
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+		xor edx, edx
663 675
 		div ebx
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+		jmp .divend
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+		.nodiv:
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+		xor eax, eax
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+		.divend:
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 		mov edi, eax
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 		call OP._push
666 682
 		ret
@@ -678,7 +694,14 @@ OP:
678 694
 		ret
679 695
 	.mod:
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 		call .prep_2arg
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+		test ebx, ebx
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+		jz .nomod
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+		xor edx, edx
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 		div ebx
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+		jmp .endmod
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+		.nomod:
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+		xor edx, edx
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+		.endmod:
682 705
 		mov edi, edx
683 706
 		call OP._push
684 707
 		ret

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