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;
; int cprintf (const char* Format, ...);
;
; Ullrich von Bassewitz, 1.12.2000
;
.export _cprintf
.import pushax, addysp, _vcprintf
.importzp sp, ptr1
.macpack generic
; ----------------------------------------------------------------------------
; Data
.bss
ParamSize: .res 1 ; Number of parameter bytes
; ----------------------------------------------------------------------------
; Code
.code
_cprintf:
sty ParamSize ; Number of param bytes passed in Y
; Calculate a pointer that points to Format
dey
dey ; Sub size of Format
tya
add sp
sta ptr1
ldx sp+1
bcc @L1
inx
@L1: stx ptr1+1
; Push Format
ldy #1
lda (ptr1),y
tax
dey
lda (ptr1),y
jsr pushax
; Load va_list (last and __fastcall__ parameter to vfprintf)
lda ptr1
ldx ptr1+1
; Call vcprintf
jsr _vcprintf
; Cleanup the stack. We will return what we got from vcprintf
ldy ParamSize
jmp addysp
|
