port stat: save some bytes, slight speedup

1 files changed, 7 insertions, 2 deletions

diff --git a/portstat.s b/portstat.s
index fa68b9f..9aa54ee 100644
--- a/portstat.s
+++ b/portstat.s
@@ -29,17 +29,22 @@ partial = <screenlen
 ; compared to using memcpy().
 ; void redraw_port_stat(void);
 _redraw_port_stat:
- lda _port_stat_dirty
- beq @done
+ ;lda _port_stat_dirty
+ ;beq @done
 
  lda #<_port_stat_screen
  sta srcptr
  lda #>_port_stat_screen
  sta srcptr+1
 
+ ; add 40 because PORTSTAT.DAT no longer contains the all-blank
+ ; first line.
  lda SAVMSC
+ clc
+ adc #$28
  sta dstptr
  lda SAVMSC+1
+ adc #$00
  sta dstptr+1
 
  ; copy screenpages pages