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render-cg: fix negative alpha values being miscompared in P8

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Lephe 2022-05-07 18:12:44 +01:00
parent 667f43b45c
commit d2f788a3fc
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GPG key ID: 1BBA026E13FC0495
2 changed files with 8 additions and 2 deletions
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3
src/render-cg/image/image_p8_clearbg.S
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@ -79,6 +79,9 @@
nop nop
.endif .endif
exts.b r8, r8
nop
START START
mov.b @r3+, \TMP2 mov.b @r3+, \TMP2

7
src/render-cg/image/image_p8_dye.S
View file

@ -56,10 +56,13 @@
nop nop
.endif .endif
mov.w @(2,r8), r0 /* cmd.color_2 (dye value) */ mov.w @r8+, r11 /* cmd.color_1 ≤ 255, thus zero-extended */
nop nop
mov.w @r8, r8 /* cmd.color_1 ≤ 255, thus zero-extended */ mov.w @r8+, r0 /* cmd.color_2 (dye value) */
nop
exts.b r11, r8
mov #0, r11 mov #0, r11
START START