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Modified delete key patch so that it does not use C4xx memory #14

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Modified delete key patch so that it does not use C4xx memory #14

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11 changes: 0 additions & 11 deletions rom5x/B0_C4EE_del_key.s
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10 changes: 10 additions & 0 deletions rom5x/B0_FD10_del_key_part_2.s
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Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
; patch RDKEY to skip over NOPs and add in additional code for handling
; delete key.
.code
.PC02
.include "iic+.defs"
.org $fd10
bra :+ ; skip over the patch
lda #$88 ; replace with left arrow code
bra $fd7c ; branch back out of the patch
:
6 changes: 0 additions & 6 deletions rom5x/B0_FD75_patch_getln1.s
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13 changes: 13 additions & 0 deletions rom5x/B0_FD78_del_key.s
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Original file line number Diff line number Diff line change
@@ -0,0 +1,13 @@
; patch GETLN1 to call delete key handler
;
; This patch uses the run of NOPs in RDKEY since there wasn't enough space here
; (6 bytes needed, 5 available).
.code
.include "iic+.defs"
.org $fd78
cmp #$ff ; check for delete
beq $fd12 ; go to part 2 of the patch
cmp #$95 ; check for control-u
bne $fd84
jsr $cc1d ; lift char