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rename __CDECL16_ENTRY and EXIT

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This commit is contained in:
Elaina Claus
2025-09-07 13:29:24 -04:00
parent 6f2fc627be
commit 9493aefa68
11 changed files with 75 additions and 70 deletions
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12
include/BIOS/func/E820_memory_map.nasm
View File

@@ -35,7 +35,7 @@ endstruc
ALIGN 4, db 0x90
GetMemoryMap:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
push es ; save segment register
.func:
mov dword [SteviaInfo + SteviaInfoStruct_t.MemoryMapEntries], 0
@@ -83,11 +83,11 @@ GetMemoryMap:
ERROR STAGE2_MM_E820_NO_SMAP
.endp:
pop es
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
PrintMemoryMap:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
mov eax, dword [SteviaInfo + SteviaInfoStruct_t.MemoryMapEntries]
cmp eax, 0
@@ -106,15 +106,15 @@ PrintMemoryMap:
; print_string strformat_buffer
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
FormatMemoryMapEntry:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
; create a string buffer somewhere and return address to result string in ax
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret

4
include/BIOS/func/a20enable.nasm
View File

@@ -64,7 +64,7 @@
; Bits 6-7 - 00: HDD activity LED off; any other value is "on"
ALIGN 4, db 0x90
EnableA20:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
push ds
push es
.a20_check:
@@ -134,7 +134,7 @@ EnableA20:
.endp:
pop es
pop ds
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
%endif

4
include/BIOS/func/ext_read.nasm
View File

@@ -76,7 +76,7 @@ endstruc
; uint16_t count, uint8_t drive_num)
ALIGN 4, db 0x90
read_disk_raw:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
mov ax, LBAPkt_t_size
push ax ; len
@@ -123,7 +123,7 @@ read_disk_raw:
ERROR STAGE2_MBR_DISK_READ_ERROR
%endif
.endf:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
%endif

24
include/BIOS/func/video.nasm
View File

@@ -20,7 +20,7 @@
ALIGN 4, db 0x90
SetTextMode:
.prolog:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
pushf
.func:
xor ah, ah ; Set Video mode BIOS function
@@ -33,14 +33,14 @@ SetTextMode:
int 0x10 ; call video interrupt
.endp:
popf
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
; disables blinking text mode cursor via crtc pokes
; 0x3D4/0x3D5 for color, mono at 0x3B4/0x3B5
ALIGN 4, db 0x90
disable_cursor_crtc:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
mov dx, 0x3D4
mov al, 0xA ; low cursor shape register
@@ -50,13 +50,13 @@ disable_cursor_crtc:
mov al, 0x20 ; bits 6-7 unused, bit 5 disables the cursor, bits 0-4 control the cursor shape
out dx, al
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
; disables blinking text mode cursor via BIOS int 10h, ah = 01
ALIGN 4, db 0x90
disable_cursor_bios:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
push bx
mov ah, 03h ; read cursor pos & shape
@@ -68,14 +68,14 @@ disable_cursor_bios:
int 10h
pop bx
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
; Prints a C-Style string (null terminated) using BIOS vga teletype call
; void PrintString(char* buf)
ALIGN 4, db 0x90
PrintString:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
mov di, [bp + 4] ; first arg is char[]
.str_len:
xor cx, cx ; ECX = 0
@@ -101,14 +101,14 @@ PrintString:
jcxz PrintString.endp
jmp PrintString.print_L0 ; Fetch next character from string
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret ; Return from procedure
; Prints a single character
; void PrintCharacter(char c);
ALIGN 4, db 0x90
PrintCharacter:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
mov al, byte [bp + 4] ; AL = character c
mov ah, 0x0E ; INT 0x10, AH=0x0E call
@@ -116,7 +116,7 @@ PrintCharacter:
int 0x10 ; call video interrupt
; TODO: check for carry and clear carry before call
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
; TODO: fix the prolog, epilog and stack usage to confirm with cdecl16
@@ -124,7 +124,7 @@ PrintCharacter:
; void PrintDWORD(uint32_t val);
ALIGN 4, db 0x90
PrintDWORD:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
mov si, IntToHex_table
mov ebx, 16 ; base-16
@@ -166,7 +166,7 @@ PrintDWORD:
jmp PrintDWORD.print_stack
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
%endif
%define __INC_VIDEO

37
include/cdecl16.inc
View File

@@ -13,8 +13,8 @@
; You should have received a copy of the GNU General Public License
; along with this program. If not, see <https://www.gnu.org/licenses/>.
%ifnmacro __CDECL16_ENTRY
%macro __CDECL16_ENTRY 0-1
%ifnmacro __CDECL16_PROC_ENTRY
%macro __CDECL16_PROC_ENTRY 0-1
push bp
mov bp, sp
@@ -28,8 +28,8 @@
%endmacro
%endif
%ifnmacro __CDECL16_EXIT
%macro __CDECL16_EXIT 0
%ifnmacro __CDECL16_PROC_EXIT
%macro __CDECL16_PROC_EXIT 0
pop bx
pop di
pop si
@@ -42,7 +42,6 @@
; __CDECL16_ARGS nargs
; Creates %$arg1 .. %$argN as [bp+4], [bp+6], ...
; for use inside of function bodies
;
%ifnmacro __CDECL16_ARGS
%macro __CDECL16_ARGS 1
%assign %$__i 1
@@ -112,20 +111,26 @@
%endmacro
%endif
%ifnmacro __CDECL16_CALLER_SAVE
%macro __CDECL16_CALLER_SAVE 0
push ax
push cx
push dx
%ifnmacro CLOB
; e.g CLOB ax dx ... inside func entry, then UNCLOB ax dx at all exits
; ordering is already taken care of
; i.e if you CLOB ax cx dx then UNCLOB ax cx dx, the unclob is reversed
%macro __CDECL16_CLOB 1-*
%assign %$i 1
%rep %0
push %[%$i]
%assign %$i %$i+1
%endrep
%endmacro
%endif
%ifnmacro __CDECL16_CALLER_RESTORE
%macro __CDECL16_CALLER_RESTORE 0
pop dx
pop cx
pop ax
%ifnmacro __CDECL16_UNCLOB
%macro UNCLOB 1-*
%assign %$i %0
%rep %0
pop %[%$i]
%assign %$i %$i-1
%endrep
%endmacro
%endif

20
include/fat32/FAT32_SYS.inc
View File

@@ -23,7 +23,7 @@
; returns: none
ALIGN 4, db 0x90
InitFATDriver:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
mov ax, FAT32_State_t_size
push ax ; length of fat32_state structure
@@ -70,14 +70,14 @@ InitFATDriver:
mov eax, dword [bx + FAT32_ebpb_t.root_clus_dword]
mov dword [di + FAT32_State_t.curr_dir_cluster_32], eax
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
.error:
ERROR STAGE2_FAT32_INIT_CF
ALIGN 4, db 0x90
FSInfoPrinter:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
;info we want to print to validate we are loading stuff from the disk correctly
; boot_drive # (i.e 0x80)
@@ -88,7 +88,7 @@ FSInfoPrinter:
; print entire FAT32 state
;
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
.error:
ERROR STAGE2_ERROR_INFOPRINTER
@@ -104,7 +104,7 @@ FSInfoPrinter:
; uint32_t SearchFATDIR(uint8_t* SFN);
ALIGN 4, db 0x90
SearchFATDIR:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.file_lookup:
print_string SearchFATDIR_info
mov bx, fat32_state
@@ -201,7 +201,7 @@ SearchFATDIR:
mov ax, [si + FAT32_SFN_t.cluster_16_low]
; eax == first cluster of file
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
; BUG: this function needs review
@@ -210,7 +210,7 @@ SearchFATDIR:
; if eax == 0x0FFFFFF7 then this is a cluster that is marked as bad
ALIGN 4, db 0x90
NextCluster:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
print_string NextFATCluster_info
@@ -275,7 +275,7 @@ NextCluster:
mov si, fat_buffer
mov eax, dword [bx+si+0]
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
.error_cfdivz:
ERROR STAGE2_FAT32_NCLUS_CFDIVZ
@@ -283,7 +283,7 @@ NextCluster:
; uint8_t ReadFATCluster(uint16_t seg, uint16_t offset, uint32_t cluster)
ALIGN 4, db 0x90
ReadFATCluster:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
print_string ReadFATCluster_info
@@ -318,7 +318,7 @@ ReadFATCluster:
call read_disk_raw
add sp, 0xC
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
.error:
ERROR STAGE2_FAT32_CLS2LBA_CF

24
include/util/arena_alloc.nasm
View File

@@ -12,7 +12,7 @@ endstruc
; void arena_init(ArenaState *a)
;
arena_init:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
mov ax, word [bp + 4] ; ptr to state structure
mov di, ax
@@ -35,7 +35,7 @@ arena_init:
add sp, 0x6
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
; size_t align_up(size_t x, size_t a)
@@ -44,7 +44,7 @@ arena_init:
; (x + (a-1)) & ~(a-1)
; return value in ax
arena_align_up:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
; if a == 0 return x
mov ax, [bp + 4] ; x
@@ -81,7 +81,7 @@ arena_align_up:
mov ax, cx ; move to ax and return
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
; void* arena_alloc(size_t bytes, size_t align)
@@ -89,7 +89,7 @@ arena_align_up:
; bp-4 - aligned_ptr
; bp-6 - new_end
arena_alloc:
__CDECL16_ENTRY 0x10
__CDECL16_PROC_ENTRY 0x10
.func:
; remove bytes from pool and increment mark to the new cursor location
; return a pointer to the begining of allocated segment
@@ -133,36 +133,36 @@ arena_alloc:
; return aligned_ptr
mov ax, word [bp - 4]
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
.error:
ERROR STEVIA_DEBUG_ERR
arena_mark:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
; return the current location of the 'cursor' in the allocator
ERROR STEVIA_DEBUG_UNIMPLEMENTED
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
arena_reset_to:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
; rewind the arena to a previously marked point
ERROR STEVIA_DEBUG_UNIMPLEMENTED
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
arena_reset:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
; reset the entire heap to a fresh state
ERROR STEVIA_DEBUG_UNIMPLEMENTED
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
%endif

8
include/util/kmem_func.nasm
View File

@@ -19,7 +19,7 @@
; void* kmemset_byte(void* dst, uint8_t val, uint16_t len);
ALIGN 4, db 0x90
kmemset:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
mov cx, [bp + 8] ; uint16_t len
mov al, byte [bp + 6] ; uint8_t val
@@ -29,14 +29,14 @@ kmemset:
rep stosb
mov ax, di ; return pointer to dest + len (last elem of dest)
.endp:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
; uint8_t* kmemset(uint16_t* dest, uint16_t* src, uint16_t len);
; not overlap safe
ALIGN 4, db 0x90
kmemcpy:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.func:
mov cx, [bp + 8] ; len
mov si, [bp + 6] ; src
@@ -46,7 +46,7 @@ kmemcpy:
rep movsb
mov ax, di ; return pointer to dest
.endf:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
%endif

4
include/util/kmemcpy5_func.nasm
View File

@@ -20,7 +20,7 @@
; not overlap safe, only for
ALIGN 4, db 0x90
kmemcpy5:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
push ds
push es
.setup_segments:
@@ -41,7 +41,7 @@ kmemcpy5:
pop es
pop ds
.endf:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
%define __INC_KMEMCPY5_FUNC

4
include/util/kmemset4_func.nasm
View File

@@ -19,7 +19,7 @@
; word kmemset_byte(word segment, word dst, byte val, word len);
ALIGN 4, db 0x90
kmemset4:
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
.setup_segment:
push es
mov ax, [bp + 4]
@@ -35,7 +35,7 @@ kmemset4:
.restore_segments:
pop es
.endf:
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
%endif

4
src/stage2/stage2.nasm
View File

@@ -264,7 +264,7 @@ hcf:
ALIGN 4, db 0x90
EnterUnrealMode:
__BOCHS_MAGIC_DEBUG
__CDECL16_ENTRY
__CDECL16_PROC_ENTRY
cli ; no interrupts
.func:
lgdt [((__STAGE2_SEGMENT << 4) + unreal_gdt_info)] ; load unreal gdt
@@ -301,7 +301,7 @@ EnterUnrealMode:
; to easily access data outside of 64KiB boundries using ds/es addressing
__TINY_DS_ES
__CDECL16_EXIT
__CDECL16_PROC_EXIT
ret
end_text: