Files
open-roms/c64/basic/initmsg_real.s
T

49 lines
737 B
ArmAsm

// Routine is too long to fit in the original location
initmsg_real:
// Print startup banner, up to 255 characters
ldx #$00
!:
lda startup_banner, x
beq !+ // 0 means end of banner
jsr JCHROUT
inx
bne !-
!:
// Print ROM revision
lda #<rom_revision_basic_string
ldy #>rom_revision_basic_string
jsr STROUT
// Print PAL/NTSC, if configured
#if CONFIG_BANNER_PAL_NTSC
jsr print_pal_ntsc
#endif
jsr initmsg_double_return
jsr print_return
// Work out free bytes, display them
jsr basic_do_new
sec
lda MEMSIZ+0
sbc TXTTAB+0
tax
lda MEMSIZ+1
sbc TXTTAB+1
jsr print_integer
// Print rest of the start up message
ldx #34
jsr print_packed_message
initmsg_double_return:
jsr print_return
jmp print_return