corrected error induced by post/pre increment to stack

section_1/funcs/nine_args.s

@@ -1,103 +1,90 @@
-	.section	__TEXT,__text,regular,pure_instructions
+	.arch armv8-a
-	.build_version macos, 13, 0	sdk_version 13, 1
+	.file	"nine_args.c"
-	.globl	_LessSillyFunction              ; -- Begin function LessSillyFunction
+	.text
-	.p2align	2
+	.section	.rodata.str1.8,"aMS",@progbits,1
-_LessSillyFunction:                     ; @LessSillyFunction
+	.align	3
+.LC0:
+	.string	"This example hurts my brain: %ld\n"
+	.text
+	.align	2
+	.global	LessSillyFunction
+	.type	LessSillyFunction, %function
+LessSillyFunction:
+.LFB23:
 	.cfi_startproc
-; %bb.0:
+	stp	x29, x30, [sp, -16]!
-	sub	sp, sp, #96
+	.cfi_def_cfa_offset 16
-	stp	x29, x30, [sp, #80]             ; 16-byte Folded Spill
+	.cfi_offset 29, -16
-	add	x29, sp, #80
+	.cfi_offset 30, -8
-	.cfi_def_cfa w29, 16
+	mov	x29, sp
-	.cfi_offset w30, -8
+	mov	x2, x7
-	.cfi_offset w29, -16
+	adrp	x1, .LC0
-	stur	x0, [x29, #-8]
+	add	x1, x1, :lo12:.LC0
-	stur	x1, [x29, #-16]
+	mov	w0, 1
-	stur	x2, [x29, #-24]
+	bl	__printf_chk
-	stur	x3, [x29, #-32]
+	ldp	x29, x30, [sp], 16
-	str	x4, [sp, #40]
+	.cfi_restore 30
-	str	x5, [sp, #32]
+	.cfi_restore 29
-	str	x6, [sp, #24]
+	.cfi_def_cfa_offset 0
-	str	x7, [sp, #16]
-	ldr	x8, [sp, #16]
-	mov	x9, sp
-	str	x8, [x9]
-	adrp	x0, l_.str@PAGE
-	add	x0, x0, l_.str@PAGEOFF
-	bl	_printf
-	ldp	x29, x30, [sp, #80]             ; 16-byte Folded Reload
-	add	sp, sp, #96
 	ret
 	.cfi_endproc
-                                        ; -- End function
+.LFE23:
-	.globl	_SillyFunction                  ; -- Begin function SillyFunction
+	.size	LessSillyFunction, .-LessSillyFunction
-	.p2align	2
+	.section	.rodata.str1.8
-_SillyFunction:                         ; @SillyFunction
+	.align	3
+.LC1:
+	.string	"This example hurts my brain: %ld %ld\n"
+	.text
+	.align	2
+	.global	SillyFunction
+	.type	SillyFunction, %function
+SillyFunction:
+.LFB24:
 	.cfi_startproc
-; %bb.0:
+	stp	x29, x30, [sp, -16]!
-	sub	sp, sp, #112
+	.cfi_def_cfa_offset 16
-	stp	x29, x30, [sp, #96]             ; 16-byte Folded Spill
+	.cfi_offset 29, -16
-	add	x29, sp, #96
+	.cfi_offset 30, -8
-	.cfi_def_cfa w29, 16
+	mov	x29, sp
-	.cfi_offset w30, -8
+	mov	x2, x7
-	.cfi_offset w29, -16
+	ldr	x3, [sp, 16]
-	ldr	x8, [x29, #16]
+	adrp	x1, .LC1
-	stur	x0, [x29, #-8]
+	add	x1, x1, :lo12:.LC1
-	stur	x1, [x29, #-16]
+	mov	w0, 1
-	stur	x2, [x29, #-24]
+	bl	__printf_chk
-	stur	x3, [x29, #-32]
+	ldp	x29, x30, [sp], 16
-	stur	x4, [x29, #-40]
+	.cfi_restore 30
-	str	x5, [sp, #48]
+	.cfi_restore 29
-	str	x6, [sp, #40]
+	.cfi_def_cfa_offset 0
-	str	x7, [sp, #32]
-	str	x8, [sp, #24]
-	ldr	x10, [sp, #32]
-	ldr	x8, [sp, #24]
-	mov	x9, sp
-	str	x10, [x9]
-	str	x8, [x9, #8]
-	adrp	x0, l_.str.1@PAGE
-	add	x0, x0, l_.str.1@PAGEOFF
-	bl	_printf
-	ldp	x29, x30, [sp, #96]             ; 16-byte Folded Reload
-	add	sp, sp, #112
 	ret
 	.cfi_endproc
-                                        ; -- End function
+.LFE24:
-	.globl	_main                           ; -- Begin function main
+	.size	SillyFunction, .-SillyFunction
-	.p2align	2
+	.align	2
-_main:                                  ; @main
+	.global	main
+	.type	main, %function
+main:
+.LFB25:
 	.cfi_startproc
-; %bb.0:
+	stp	x29, x30, [sp, -16]!
-	sub	sp, sp, #32
+	.cfi_def_cfa_offset 16
-	stp	x29, x30, [sp, #16]             ; 16-byte Folded Spill
+	.cfi_offset 29, -16
-	add	x29, sp, #16
+	.cfi_offset 30, -8
-	.cfi_def_cfa w29, 16
+	mov	x29, sp
-	.cfi_offset w30, -8
+	mov	x3, 9
-	.cfi_offset w29, -16
+	mov	x2, 8
-	mov	x9, sp
+	adrp	x1, .LC1
-	mov	x8, #9
+	add	x1, x1, :lo12:.LC1
-	str	x8, [x9]
+	mov	w0, 1
-	mov	x0, #1
+	bl	__printf_chk
-	mov	x1, #2
+	mov	w0, 0
-	mov	x2, #3
+	ldp	x29, x30, [sp], 16
-	mov	x3, #4
+	.cfi_restore 30
-	mov	x4, #5
+	.cfi_restore 29
-	mov	x5, #6
+	.cfi_def_cfa_offset 0
-	mov	x6, #7
-	mov	x7, #8
-	bl	_SillyFunction
-	mov	w0, #0
-	ldp	x29, x30, [sp, #16]             ; 16-byte Folded Reload
-	add	sp, sp, #32
 	ret
 	.cfi_endproc
-                                        ; -- End function
+.LFE25:
-	.section	__TEXT,__cstring,cstring_literals
+	.size	main, .-main
-l_.str:                                 ; @.str
+	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
-	.asciz	"This example hurts my brain: %ld\n"
+	.section	.note.GNU-stack,"",@progbits
-
-l_.str.1:                               ; @.str.1
-	.asciz	"This example hurts my brain: %ld %ld\n"
-
-.subsections_via_symbols

section_1/funcs/nine_args_asm.s

@@ -1,19 +1,30 @@
 		.text
 		.global	main
 
+/*  Demonstration of using  more than 8 arguments to  a function.  This
+    demo is LINUX only as APPLE will put all arguments beyond the first
+    one on the stack anyway.
+
+    On LINUX, all parameters to a function beyond  the  eight go on the
+    stack.  The first 8 go in registers  x0  through  x7 as normal (for
+    LINUX).
+*/
+
 SillyFunction:
-		str		x30, [sp, -16]!
+		stp		x29, x30, [sp, -16]!    // Changes sp.
+        mov     x29, sp
 		ldr		x0, =fmt
 		mov		x1, x7
-		ldr		x2, [sp, 16]
+		ldr		x2, [sp, 16]            // This does not alter the sp.
 		bl		printf
-		ldr		x30, [sp], 32
+		ldp		x29, x30, [sp], 16      // Undoes change to sp.
 		ret
 
 main:	
-		str		x30, [sp, -16]!
+		stp		x29, x30, [sp, -16]!    // sp down total of 16.
+        mov     x29, sp
 		mov		x0, 9
-		str		x0, [sp, -16]!
+		str		x0, [sp, -16]!          // sp down total of 32.
 		mov		x0, 1
 		mov		x1, 2
 		mov		x2, 3
@@ -23,7 +34,9 @@ main:
 		mov		x6, 7
 		mov		x7, 8
 		bl		SillyFunction
-		ldr		x30, [sp], 32
+        add     sp, sp, 16              // undoes change of sp by 16 due
+                                        // to function call.
+		ldp		x29, x30, [sp], 16      // undoes change to sp of 16.
 		ret
 	
 		.data