Files
open-roms/c64/basic/basic_commands_CC/cmd_merge.s
T
2020-06-22 21:25:23 +02:00

42 lines
737 B
ArmAsm

// #LAYOUT# STD * #TAKE
// #LAYOUT# * BASIC_0 #TAKE
// #LAYOUT# * * #IGNORE
cmd_merge:
lda #$00 // mark operation as LOAD
jsr helper_load_init_params
// Fetch the file name
jsr helper_load_fetch_filename
bcc !+
// No filename supplied - this should only be allowed for tape (device number below 8)
lda FA
and #%11111000
bne_16 do_MISSING_FILENAME_error
lda #$00
sta FNLEN
!:
// Fetch device number
jsr helper_load_fetch_devnum
// Perform loading - just for a different address
sec
lda VARTAB+0
sbc #$02
sta VARTAB+0
tax
bcs !+
dec VARTAB+1
!:
ldy VARTAB+1
jmp cmd_load_loadmerge // XXX check variable handling (VARTAB) after failure to load