6502/cc65
1
0
Fork 0
mirror of https://github.com/cc65/cc65.git synced 2025-02-28 05:30:23 +00:00
Code Issues Projects Releases Wiki Activity

Merge pull request #2069 from jefftranter/bootstrap-fix

Browse Source 
Source listing in bootstrap.s is incorrect.
This commit is contained in:
Bob Andrews 2023-05-07 13:49:12 +02:00 committed by GitHub
commit c9857d9962
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
libsrc/osic1p/bootstrap.s
View File

@ -34,8 +34,7 @@ ram_top := __MAIN_START__ + __MAIN_SIZE__
.ifdef ASM
.include "osic1p.inc"
.macpack generic
.include "screen-c1p-24x24.s"
load := $08 ; private variables
count := $0A
@ -45,7 +44,7 @@ GETCHAR := $FFBF ; gets one character from ACIA
FIRSTVISC = $85 ; Offset of first visible character in video RAM
LINEDIST = $20 ; Offset in video RAM between two lines
ldy #<$0000
ldy #$00
lda #<load_addr
ldx #>load_addr
sta load
@ -57,9 +56,9 @@ LINEDIST = $20 ; Offset in video RAM between two lines
stx count+1 ; save size with each byte incremented separately
L1: dec count
bnz L2
bne L2
dec count+1
bze L3
beq L3
L2: jsr GETCHAR ; (doesn't change .Y)
sta (load),y
@ -70,12 +69,12 @@ L2: jsr GETCHAR ; (doesn't change .Y)
lsr a
and #8 - 1
ora #$10 ; eight arrow characters
sta SCRNBASE + FIRSTVISC + 2 * LINEDIST + 11
sta C1P_SCR_BASE + FIRSTVISC + 2 * LINEDIST + 11
iny
bnz L1
bne L1
inc load+1
bnz L1 ; branch always
bne L1 ; branch always
L3: jmp load_addr
@ -112,18 +111,15 @@ CR = $0D
hex2 >load_addr
.byte CR, "85", CR, "08", CR
.byte "86", CR, "09", CR
.byte "A9", CR
hex2 <load_size
.byte CR, "49", CR, "FF", CR
.byte "85", CR, "0A", CR
.byte "A9", CR
hex2 >load_size
.byte CR, "49", CR, "FF", CR
.byte "85", CR, "0B", CR
.byte "E6", CR, "0A", CR
.byte "A2", CR
hex2 (<load_size) + 1
.byte CR, "86", CR, "0A", CR
.byte "A2", CR
hex2 (>load_size) + 1
.byte CR, "86", CR, "0B", CR
.byte "C6", CR, "0A", CR
.byte "D0", CR, "04", CR
.byte "E6", CR, "0B", CR
.byte "C6", CR, "0B", CR
.byte "F0", CR, "16", CR
.byte "20", CR, "BF", CR, "FF", CR
.byte "91", CR, "08", CR