.DrawStrip_vsscroll:\r
rsb r8, r3, #0\r
mov r8, r8, lsr #3 @ r8=tilex=(-ts->hscroll)>>3\r
- bic r8, r8, #0xff000000\r
- orr r8, r8, r5, lsl #25 @ r8=(xmask[31:25]|had_output[24]|tilex[23:0])\r
+ bic r8, r8, #0x3fc00000\r
+ orr r8, r8, r5, lsl #25 @ r8=(xmask[31:25]|had_output[24]|tilex[21:0])\r
\r
ldr r4, =Scanline\r
orr r5, r1, r10, lsl #24\r
ldrh r7, [r7] @ r7=vscroll\r
\r
bic r10,r10,#0xff @ clear old ty\r
- and r4, r5, #0xff0000\r
- add r4, r4, r7, lsl #16\r
- and r4, r4, r5, lsl #16 @ r4=line<<16\r
+ and r4, r5, #0xff0000 @ scanline\r
+ add r4, r4, r7, lsl #16 @ ... += vscroll\r
+ and r4, r4, r5, lsl #16 @ ... &= ymask\r
and r7, r4, #0x70000\r
orr r10,r10,r7, lsr #15 @ new ty\r
\r
beq .DrawStrip_vs_samecode @ we know stuff about this tile already\r
\r
mov r9, r7 @ remember code\r
- orr r8, r8, #1<<24 @ seen non hi-prio tile\r
+ orr r8, r8, #(1<<24)@ seen non hi-prio tile\r
\r
movs r2, r9, lsl #20 @ if (code&0x1000)\r
mov r2, r2, lsl #1\r
b .dsloop_vs\r
\r
.dsloop_vs_exit:\r
- tst r8, #1<<24 @ seen non hi-prio tile\r
+ tst r8, #(1<<24) @ seen non hi-prio tile\r
ldreq r1, =rendstatus\r
mov r0, #0\r
ldreq r2, [r1]\r