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| author | B. Watson <urchlay@slackware.uk> | 2025-04-28 08:19:11 -0400 |
|---|---|---|
| committer | B. Watson <urchlay@slackware.uk> | 2025-04-28 08:19:11 -0400 |
| commit | ac44a300e363e976b2ad36d8208bb1cd7828ad64 (patch) | |
| tree | d71708056632c020f5105e3d447366e3905edaf5 | |
| parent | ba3ffa27f20b697a8bc1de49a582efdef2182231 (diff) | |
| download | atari8-self-relocator-ac44a300e363e976b2ad36d8208bb1cd7828ad64.tar.gz | |
reloc.s: commentary.
| -rw-r--r-- | reloc.s | 9 |
1 files changed, 6 insertions, 3 deletions
@@ -1,6 +1,9 @@ +;;; reloc.s - relocate code. this is just one puzzle piece. +;;; see README.txt for details. ; uncomment to enable user-friendly "MEMLO is too high" error. -; adds ~80 bytes to the code size (40% larger). +; adds ~80 bytes to the code size. also, makes reloc.xex non-relocatable. +; currently not a problem, but may be in the future. ;verbose_memlo_check = 1 .export _main @@ -33,12 +36,12 @@ _main: ; if MEMLO isn't on a page boundary, move it up to the next ; page, e.g. $1cfc => $1d00. lda MEMLO - beq memlo_00 + beq calc_offset inc MEMLO+1 lda #0 sta MEMLO -memlo_00: +calc_offset: lda code_start+1 sec sbc MEMLO+1 |