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https://github.com/RaySollium99/picodrive.git
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asm for PicoDoHighPal555
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@561 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz
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e55f0cbba1
commit
b2305d080d
2 changed files with 67 additions and 43 deletions
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@ -1138,6 +1138,7 @@ static void BackFill(int reg7, int sh)
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unsigned short HighPal[0x100];
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#ifndef _ASM_DRAW_C
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void PicoDoHighPal555(int sh)
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{
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unsigned short *pal=HighPal;
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@ -1169,7 +1170,6 @@ void PicoDoHighPal555(int sh)
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}
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}
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#ifndef _ASM_DRAW_C
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static void FinalizeLineBGR444(int sh)
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{
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unsigned short *pd=DrawLineDest;
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108
Pico/Draw.s
108
Pico/Draw.s
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@ -1633,18 +1633,15 @@ FinalizeLineBGR444:
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orr \reg, \reg, r3 @ add blue back
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.endm
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.global vidConvCpyRGB565
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vidConvCpyRGB565: @ void *to, void *from, int pixels
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stmfd sp!, {r4-r9,lr}
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@ trashes: r2-r9,r12,lr; r0,r1 are advanced
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.macro vidConvCpyRGB565_local
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mov r12, r2, lsr #3 @ repeats
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mov lr, #0x001c0000
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orr lr, lr, #0x01c @ lr == pattern 0x001c001c
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mov r8, #0x00030000
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orr r8, r8, #0x003
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.loopRGB565:
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0:
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ldmia r1!, {r4-r7}
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subs r12, r12, #1
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convRGB565 r4
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@ -1656,44 +1653,51 @@ vidConvCpyRGB565: @ void *to, void *from, int pixels
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convRGB565 r7
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str r7, [r0], #4
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bgt .loopRGB565
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bgt 0b
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.endm
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.global vidConvCpyRGB565
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vidConvCpyRGB565: @ void *to, void *from, int pixels
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stmfd sp!, {r4-r9,lr}
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vidConvCpyRGB565_local
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ldmfd sp!, {r4-r9,lr}
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bx lr
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.global PicoDoHighPal555 @ int sh
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.global FinalizeLineRGB555 @ int sh
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FinalizeLineRGB555:
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stmfd sp!, {r4-r8,lr}
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ldr r8, =(Pico+0x22228) @ Pico.video
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ldr r4, =HighPal
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ldrb r7, [r8, #-0x1a] @ 0x2220e ~ dirtyPal
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mov r6, r0
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PicoDoHighPal555:
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stmfd sp!, {r4-r9,lr}
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mov r1, #0
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tst r7, r7
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beq .fl_noconvRGB555
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strb r1, [r8, #-0x1a]
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sub r1, r8, #0x128 @ r1=Pico.cram
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mov r0, r4
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mov r2, #0x40
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bl vidConvCpyRGB565
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ldr r8, =(Pico+0x22228) @ Pico.video
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.fl_noconvRGB555:
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mov r3, r4
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tst r6, r6
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beq .fl_noshRGB555
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tst r7, r7
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beq .fl_noshRGB555
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PicoDoHighPal555_nopush:
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str r1, [sp, #-8] @ is called from FinalizeLineRGB555?
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str r0, [sp, #-4]
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ldr r0, =HighPal
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mov r1, #0
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strb r1, [r8, #-0x1a] @ 0x2220e ~ dirtyPal
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sub r1, r8, #0x128 @ r1=Pico.cram
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mov r2, #0x40
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vidConvCpyRGB565_local
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ldr r0, [sp, #-4]
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tst r0, r0
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beq PicoDoHighPal555_end
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ldr r3, =HighPal
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@ shadowed pixels:
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mov r12, #0x008e
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orr r12,r12,#0x7300
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orr r12,r12,r12,lsl #16
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add r4, r3, #0x40*2
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orr r12,r12,#0x7300
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add r5, r3, #0xc0*2
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orr r12,r12,r12,lsl #16
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mov lr, #0x40/4
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.fl_loopcpRGB555_sh:
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ldmia r3!, {r1,r6}
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@ -1713,13 +1717,33 @@ FinalizeLineRGB555:
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str r1, [r4], #4
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subs lr, lr, #1
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bne .fl_loopcpRGB555_hi
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mov r0, #1
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sub r3, r3, #0x40*2
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mov r6, #1
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PicoDoHighPal555_end:
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ldr r1, [sp, #-8]
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tst r1, r1
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ldmeqfd sp!, {r4-r9,pc}
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ldr r8, =(Pico+0x22228) @ Pico.video
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b FinalizeLineRGB555_pal_done
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.global FinalizeLineRGB555 @ int sh
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FinalizeLineRGB555:
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stmfd sp!, {r4-r9,lr}
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ldr r8, =(Pico+0x22228) @ Pico.video
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ldrb r2, [r8, #-0x1a] @ 0x2220e ~ dirtyPal
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mov r1, #1
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tst r2, r2
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bne PicoDoHighPal555_nopush
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FinalizeLineRGB555_pal_done:
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ldr r3, =HighPal
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.fl_noshRGB555:
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ldr r12,=rendstatus
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eors r6, r6, #1 @ sh is 0
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eors r0, r0, #1 @ sh is 0
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ldr r12,[r12]
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mov lr, #0xff
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tstne r12,#PDRAW_ACC_SPRITES
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@ -1791,12 +1815,12 @@ FinalizeLineRGB555:
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stmia r0!, {r4,r5,r8,r12}
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bne .fl_loopRGB555
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ldmfd sp!, {r4-r8,lr}
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ldmfd sp!, {r4-r9,lr}
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bx lr
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.fl_32scale_RGB555:
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stmfd sp!, {r9,r10}
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stmfd sp!, {r10}
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mov r9, #0x3900 @ f800 07e0 001f | e000 0780 001c | 3800 01e0 0007
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orr r9, r9, #0x00e7
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@ -1857,8 +1881,8 @@ FinalizeLineRGB555:
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stmia r0!, {r4,r5,r6,r8,r10}
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bne .fl_loop32scale_RGB555
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ldmfd sp!, {r9,r10}
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ldmfd sp!, {r4-r8,lr}
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ldmfd sp!, {r10}
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ldmfd sp!, {r4-r9,lr}
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bx lr
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.if UNALIGNED_DRAWLINEDEST
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@ -1904,7 +1928,7 @@ FinalizeLineRGB555:
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strh r8, [r0], #2
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ldmfd sp!, {r4-r8,lr}
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ldmfd sp!, {r4-r9,lr}
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bx lr
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@ -1970,8 +1994,8 @@ FinalizeLineRGB555:
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strh r4, [r0], #2
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ldmfd sp!, {r9,r10}
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ldmfd sp!, {r4-r8,lr}
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ldmfd sp!, {r10}
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ldmfd sp!, {r4-r9,lr}
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bx lr
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.endif @ UNALIGNED_DRAWLINEDEST
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