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sprites.c
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479 lines (405 loc) · 11 KB
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#include "sprites.h"
#include "memory.h"
void sp_4_15_put(uint16_t x, uint16_t y, const uint8_t *image)
{
asm(
"mov $040000, r4\n\t"
"mov %[y], r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"add r0, r4\n\t"
"add %[x], r4\n\t"
"mov %[image], r3\n\t"
"mov $15, r2\n\t"
"bit r4, $1\n\t"
"beq .l2_%=\n"
".l1_%=:\n\t"
"mov (r3)+, r0\n\t"
"movb r0, (r4)+\n\t"
"swab r0\n\t"
"movb r0, (r4)+\n\t"
"mov (r3)+, r0\n\t"
"movb r0, (r4)+\n\t"
"swab r0\n\t"
"movb r0, (r4)\n\t"
"add $61, r4\n\t"
"sob r2, .l1_%=\n\t"
"br .l3_%=\n"
".l2_%=:\n\t"
"mov (r3)+, (r4)+\n\t"
"mov (r3)+, (r4)\n\t"
"add $62, r4\n\t"
"sob r2, .l2_%=\n"
".l3_%=:\n\t"
:
: [x]"g"(x), [y]"g"(y), [image]"m"(image)
: "r0", "r2", "r3", "r4", "cc", "memory"
);
}
void sp_4_15_h_mirror_put(uint16_t x, uint16_t y, const uint8_t *image)
{
asm(
"mov $040000, r4\n\t"
"mov %[y], r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"add r0, r4\n\t"
"add %[x], r4\n\t"
"add $4, r4\n\t"
"mov %[image], r3\n\t"
"mov $15, r2\n\t"
"bit r4, $1\n\t"
"beq .l2_%=\n"
".l1_%=:\n\t"
"mov (r3)+, r0\n\t"
"jsr pc, .l_mirror_%=\n\t"
"movb r0, -(r4)\n\t"
"swab r0\n\t"
"movb r0, -(r4)\n\t"
"mov (r3)+, r0\n\t"
"jsr pc, .l_mirror_%=\n\t"
"movb r0, -(r4)\n\t"
"swab r0\n\t"
"movb r0, -(r4)\n\t"
"add $68, r4\n\t"
"sob r2, .l1_%=\n\t"
"br .lq_%=\n"
".l2_%=:\n\t"
"mov (r3)+, r0\n\t"
"jsr pc, .l_mirror_%=\n\t"
"swab r0\n\t"
"mov r0, -(r4)\n\t"
"mov (r3)+, r0\n\t"
"jsr pc, .l_mirror_%=\n\t"
"swab r0\n\t"
"mov r0, -(r4)\n\t"
"add $68, r4\n\t"
"sob r2, .l2_%=\n\t"
"br .lq_%=\n"
".l_mirror_%=:\n\t"
// 16-bit word mirror
"mov r0, r1\n\t" // r0 = r1 = ABCD EFGH
"bic $0x3333, r1\n\t" // r1 = 0B0D 0F0H
"bic r1, r0\n\t" // r0 = A0C0 E0G0
"asl r0\n\t"
"asl r0\n\t" // r0 = 0A0C 0E0G
"clc\n\t"
"ror r1\n\t"
"ror r1\n\t" // r1 = B0D0 F0H0
"bis r1, r0\n\t" // r0 = BADC FEGH
"mov r0, r1\n\t" // r1 = BADC FEGH
"bic $0xF0F0, r1\n\t" // r1 = 00DC 00GH
"bic r1, r0\n\t" // r0 = BA00 FE00
"asl r1\n\t"
"asl r1\n\t"
"asl r1\n\t"
"asl r1\n\t" // r0 = 00BA 00FE
"clc\n\t"
"ror r0\n\t"
"ror r0\n\t"
"ror r0\n\t"
"ror r0\n\t" // r1 = DC00 GH00
"bis r1, r0\n\t" // r0 = DCBA GHFE
"rts pc\n"
".lq_%=:\n\t"
:
: [x]"g"(x), [y]"g"(y), [image]"m"(image)
: "r0", "r1", "r2", "r3", "r4", "cc", "memory"
);
}
void sp_4_15_hv_mirror_put(uint16_t x, uint16_t y, const uint8_t *image)
{
asm(
"mov $040000, r4\n\t"
"mov %[y], r0\n\t"
"add $14, r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"add r0, r4\n\t"
"add %[x], r4\n\t"
"add $4, r4\n\t"
"mov %[image], r3\n\t"
"mov $15, r2\n\t"
"bit r4, $1\n\t"
"beq .l2_%=\n"
".l1_%=:\n\t"
"mov (r3)+, r0\n\t"
"jsr pc, .l_mirror_%=\n\t"
"movb r0, -(r4)\n\t"
"swab r0\n\t"
"movb r0, -(r4)\n\t"
"mov (r3)+, r0\n\t"
"jsr pc, .l_mirror_%=\n\t"
"movb r0, -(r4)\n\t"
"swab r0\n\t"
"movb r0, -(r4)\n\t"
"sub $60, r4\n\t"
"sob r2, .l1_%=\n\t"
"br .lq_%=\n"
".l2_%=:\n\t"
"mov (r3)+, r0\n\t"
"jsr pc, .l_mirror_%=\n\t"
"swab r0\n\t"
"mov r0, -(r4)\n\t"
"mov (r3)+, r0\n\t"
"jsr pc, .l_mirror_%=\n\t"
"swab r0\n\t"
"mov r0, -(r4)\n\t"
"sub $60, r4\n\t"
"sob r2, .l2_%=\n\t"
"br .lq_%=\n"
".l_mirror_%=:\n\t"
// 16-bit word mirror
"mov r0, r1\n\t" // r0 = r1 = ABCD EFGH
"bic $0x3333, r1\n\t" // r1 = 0B0D 0F0H
"bic r1, r0\n\t" // r0 = A0C0 E0G0
"asl r0\n\t"
"asl r0\n\t" // r0 = 0A0C 0E0G
"clc\n\t"
"ror r1\n\t"
"ror r1\n\t" // r1 = B0D0 F0H0
"bis r1, r0\n\t" // r0 = BADC FEGH
"mov r0, r1\n\t" // r1 = BADC FEGH
"bic $0xF0F0, r1\n\t" // r1 = 00DC 00GH
"bic r1, r0\n\t" // r0 = BA00 FE00
"asl r1\n\t"
"asl r1\n\t"
"asl r1\n\t"
"asl r1\n\t" // r0 = 00BA 00FE
"clc\n\t"
"ror r0\n\t"
"ror r0\n\t"
"ror r0\n\t"
"ror r0\n\t" // r1 = DC00 GH00
"bis r1, r0\n\t" // r0 = DCBA GHFE
"rts pc\n"
".lq_%=:\n\t"
:
: [x]"g"(x), [y]"g"(y), [image]"m"(image)
: "r0", "r1", "r2", "r3", "r4", "cc", "memory"
);
}
void sp_4_15_mask_put(uint16_t x, uint16_t y, const uint8_t *image, const uint8_t *outline)
{
asm(
"mov $040000, r5\n\t"
"mov %[y], r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"add r0, r5\n\t"
"add %[x], r5\n\t"
"mov %[image], r1\n\t"
"mov %[outline], r2\n\t"
"mov $15, r4\n\t"
"bit r5, $1\n\t"
"bne .L_odd_%=\n\t"
// Чётный путь: пословные операции
"tst r1\n\t"
"beq .L_even_no_img_%=\n"
// image + outline пословно
".L_even_both_%=:\n\t"
"mov (r5), r0\n\t"
"bic (r2)+, r0\n\t"
"bis (r1)+, r0\n\t"
"mov r0, (r5)+\n\t"
"mov (r5), r0\n\t"
"bic (r2)+, r0\n\t"
"bis (r1)+, r0\n\t"
"mov r0, (r5)+\n\t"
"add $60, r5\n\t"
"sob r4, .L_even_both_%=\n\t"
"br .L_done_%=\n"
// Только outline пословно
".L_even_no_img_%=:\n\t"
"bic (r2)+, (r5)+\n\t"
"bic (r2)+, (r5)+\n\t"
"add $60, r5\n\t"
"sob r4, .L_even_no_img_%=\n\t"
"br .L_done_%=\n"
".L_odd_%=:\n\t"
"tst r1\n\t"
"beq .L_odd_no_img_%=\n"
// Нечётный путь: побайтно
".L_odd_both_%=:\n\t"
"movb (r5), r0\n\t"
"bicb (r2)+, r0\n\t"
"bisb (r1)+, r0\n\t"
"movb r0, (r5)+\n\t"
"movb (r5), r0\n\t"
"bicb (r2)+, r0\n\t"
"bisb (r1)+, r0\n\t"
"movb r0, (r5)+\n\t"
"movb (r5), r0\n\t"
"bicb (r2)+, r0\n\t"
"bisb (r1)+, r0\n\t"
"movb r0, (r5)+\n\t"
"movb (r5), r0\n\t"
"bicb (r2)+, r0\n\t"
"bisb (r1)+, r0\n\t"
"movb r0, (r5)+\n\t"
"add $60, r5\n\t"
"sob r4, .L_odd_both_%=\n\t"
"br .L_done_%=\n"
".L_odd_no_img_%=:\n\t"
"bicb (r2)+, (r5)+\n\t"
"bicb (r2)+, (r5)+\n\t"
"bicb (r2)+, (r5)+\n\t"
"bicb (r2)+, (r5)+\n\t"
"add $60, r5\n\t"
"sob r4, .L_odd_no_img_%=\n"
".L_done_%=:\n\t"
:
: [x]"g"(x), [y]"g"(y), [image]"m"(image), [outline]"m"(outline)
: "r0", "r1", "r2", "r4", "r5", "cc", "memory"
);
}
void erase_4_15(uint16_t x_graph, uint16_t y_graph)
{
asm volatile (
"mov $040000, r0\n\t"
"mov %[y], r1\n\t"
"asl r1\n\t"
"asl r1\n\t"
"asl r1\n\t"
"asl r1\n\t"
"asl r1\n\t"
"asl r1\n\t"
"add r1, r0\n\t"
"add %[x], r0\n\t"
"mov $15, r1\n\t"
"bit r0, $1\n\t"
"bne .L_e_odd_%=\n"
".L_e_even_%=:\n\t"
"clr (r0)+\n\t"
"clr (r0)+\n\t"
"add $60, r0\n\t"
"sob r1, .L_e_even_%=\n\t"
"br .L_e_done_%=\n"
".L_e_odd_%=:\n\t"
"clrb (r0)+\n\t"
"clrb (r0)+\n\t"
"clrb (r0)+\n\t"
"clrb (r0)+\n\t"
"add $60, r0\n\t"
"sob r1, .L_e_odd_%=\n"
".L_e_done_%=:\n\t"
:
: [x]"g"(x_graph), [y]"g"(y_graph)
: "r0", "r1", "cc", "memory"
);
}
void sp_put(uint16_t x, uint16_t y, uint16_t x_width, uint16_t y_width, const uint8_t *image, const uint8_t *outline)
{
asm(
"mov $040000, r5\n\t"
"mov %[y], r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"add r0, r5\n\t"
"add %[x], r5\n\t"
"add %[x_width], r5\n"
"mov %[image], r1\n\t"
"mov %[outline], r2\n\t"
"mov %[y_width], r4\n\t"
"tst r1\n\t"
"beq .L_no_img_%=\n\t"
"tst r2\n\t"
"bne .L_both_%=\n\t"
"br .L_img_only_%=\n"
".L_no_img_%=:\n\t"
"br .L_generic_%=\n"
".L_both_%=:\n"
".L_b_y_%=:\n\t"
"mov %[x_width], r3\n\t"
"sub r3, r5\n"
".L_b_x_%=:\n\t"
"movb (r5), r0\n\t"
"bicb (r2)+, r0\n\t"
"bisb (r1)+, r0\n\t"
"movb r0, (r5)+\n\t"
"sob r3, .L_b_x_%=\n\t"
"add $64, r5\n\t"
"sob r4, .L_b_y_%=\n\t"
"br .L_done_%=\n"
".L_img_only_%=:\n"
".L_i_y_%=:\n\t"
"mov %[x_width], r3\n\t"
"sub r3, r5\n"
".L_i_x_%=:\n\t"
"movb (r1)+, (r5)+\n\t"
"sob r3, .L_i_x_%=\n\t"
"add $64, r5\n\t"
"sob r4, .L_i_y_%=\n\t"
"br .L_done_%=\n"
".L_generic_%=:\n"
".L_g_y_%=:\n\t"
"mov %[x_width], r3\n\t"
"sub r3, r5\n"
".L_g_x_%=:\n\t"
"clr r0\n\t"
"tst r2\n\t"
"beq .L_g_no_out_%=\n\t"
"movb (r5), r0\n\t"
"bicb (r2)+, r0\n"
".L_g_no_out_%=:\n\t"
"tst r1\n\t"
"beq .L_g_no_img_%=\n\t"
"bisb (r1)+, r0\n"
".L_g_no_img_%=:\n\t"
"movb r0, (r5)+\n\t"
"sob r3, .L_g_x_%=\n\t"
"add $64, r5\n\t"
"sob r4, .L_g_y_%=\n"
".L_done_%=:\n\t"
:
: [x]"g"(x), [y]"g"(y), [x_width]"g"(x_width), [y_width]"g"(y_width), [image]"m"(image), [outline]"m"(outline)
: "r0", "r1", "r2", "r3", "r4", "r5", "cc", "memory"
);
}
void sp_clear_brick(uint16_t x, uint16_t y, uint8_t x_width, uint8_t y_width)
{
asm(
"mov %[y], r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"asl r0\n\t"
"add %[x], r0\n\t"
"add $040000, r0\n\t"
"movb %[x_width], r1\n\t"
"movb %[y_width], r2\n"
".l1_%=:\n\t"
"mov r1, r3\n"
".l2_%=:\n\t"
"clrb (r0)+\n\t"
"sob r3, .l2_%=\n\t"
"add $64, r0\n\t"
"sub r1, r0\n\t"
"sob r2, .l1_%=\n\t"
:
: [x]"g"(x), [y]"g"(y), [x_width]"g"(x_width), [y_width]"g"(y_width)
: "r0", "r1", "r2", "r3", "cc", "memory"
);
}