wip subtraction method, still not working

mandel.s

@@ -221,8 +221,12 @@ char_map:
     .endrepeat
 
 hex_chars:
+digits_zero:
     .byte "0123456789abcdef"
 
+digits_space:
+    .byte " 123456789abcdef"
+
 aspect:
     ; aspect ratio!
     ; pixels at 320w are 5:6 (narrow)
@@ -1982,7 +1986,11 @@ update_status:
     lda FR0 + 1
     sta temp + 1
 
-    .macro countdown divisor, string
+    ;jsr IFP
+    ;jsr FASC
+    ;jsr draw_string
+
+    .macro countdown divisor, digits
         .scope
             ; count the hours
             ldx #0
@@ -2003,20 +2011,27 @@ update_status:
             inx
             jmp countdown_loop
         countdown_done:
-            stx FR0
-            ldx #0
-            stx FR0 + 1
-            jsr IFP
-            jsr FASC
+            lda digits,x
+            eor #$80
+            sta temp2
+            lda #.lobyte(temp2)
+            sta INBUFF
+            lda #.hibyte(temp2)
+            sta INBUFF + 1
             jsr draw_string
-            draw_string_const string
         .endscope
     .endmacro
 
     draw_string_const str_space
-    countdown 3600, str_h
-    countdown 60, str_m
-    countdown 1, str_s
+    countdown 36000, digits_space
+    countdown 3600, digits_zero
+    draw_string_const str_h
+    countdown 600, digits_zero
+    countdown 60, digits_zero
+    draw_string_const str_m
+    countdown 10, digits_zero
+    countdown 1, digits_zero
+    draw_string_const str_s
 
 skipped: