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cleanup

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This commit is contained in:
Edward R. Gonzalez
2025-06-22 16:13:05 -04:00
parent a3e56b9394
commit 682401c731
1 changed files with 1 additions and 8 deletions
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9
code/asm/hello_files.asm
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@ -276,13 +276,10 @@ def_Slice Byte
push rstack_base_ptr ; Save the caller's frame pointer (RBP) push rstack_base_ptr ; Save the caller's frame pointer (RBP)
mov rstack_base_ptr, rstack_ptr ; Set our new frame pointer to the current stack position mov rstack_base_ptr, rstack_ptr ; Set our new frame pointer to the current stack position
%endmacro %endmacro
; Usage: cf_alloc <size_or_symbol> (call-frame allocate) ; Usage: cf_alloc <size_or_symbol> (call-frame allocate)
; Immediately allocates a block of memory on the stack.
%macro cf_alloc 1 %macro cf_alloc 1
sub rstack_ptr, %1 ; Allocate space by subtracting from the stack pointer (RSP) sub rstack_ptr, %1 ; Allocate space by subtracting from the stack pointer (RSP)
%endmacro %endmacro
; Usage: cf_commit (call-frame commit) ; Usage: cf_commit (call-frame commit)
; Finalizes the stack frame by ensuring it is correctly aligned for a function call. ; Finalizes the stack frame by ensuring it is correctly aligned for a function call.
%macro cf_commit 0 %macro cf_commit 0
@ -291,17 +288,14 @@ def_Slice Byte
; by clearing the last 4 bits of RSP, rounding it down to the nearest multiple of 16. ; by clearing the last 4 bits of RSP, rounding it down to the nearest multiple of 16.
and rstack_ptr, ~15 and rstack_ptr, ~15
%endmacro %endmacro
; Usage: cf_end (call-frame end) ; Usage: cf_end (call-frame end)
; Tears down the stack frame, deallocating all memory and restoring the caller's frame. ; Tears down the stack frame, deallocating all memory and restoring the caller's frame.
; This is a standard function epilogue.
%macro cf_end 0 %macro cf_end 0
; Deallocate the entire frame at once by resetting RSP to the saved RBP ; Deallocate the entire frame at once by resetting RSP to the saved RBP
mov rstack_ptr, rstack_base_ptr mov rstack_ptr, rstack_base_ptr
; Restore the caller's frame pointer ; Restore the caller's frame pointer
pop rstack_base_ptr pop rstack_base_ptr
%endmacro %endmacro
%macro cf_ctbl 1 %macro cf_ctbl 1
cf cf
cf_alloc %1 %+ _ctbl_size cf_alloc %1 %+ _ctbl_size
@ -681,7 +675,6 @@ global main
call WriteConsoleA ; WriteConsoleA <- rcounter, rdata, r9, stack call WriteConsoleA ; WriteConsoleA <- rcounter, rdata, r9, stack
cf_end cf_end
; Exit program
cf_ctbl ExitProcess ; call-frame ExitProcess { cf_ctbl ExitProcess ; call-frame ExitProcess {
xor ecx, ecx ; ecx = 0 xor ecx, ecx ; ecx = 0
call ExitProcess ; ExitProcess <- rcx, stack call ExitProcess ; ExitProcess <- rcx, stack