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fixed redundancy and added sample rom
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@YusukeLab
YusukeLab committed Sep 14, 2022
1 parent e879475 commit 858f9e8
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Showing 6 changed files with 114 additions and 201 deletions.
120 changes: 41 additions & 79 deletions Build/Example1/MSXSample.c
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Original file line number Diff line number Diff line change
Expand Up @@ -8,35 +8,32 @@
#include "pcg_def.h"
#include "map_def.h"
#include "spr_def.h"

void buf2vram(unsigned short src, unsigned short dst, unsigned short len);
void vram2vram(unsigned short dst, unsigned short src, unsigned short size);
// Prototype declaration
void ram2vram(unsigned short, unsigned short, unsigned short);
// Working buffer
static unsigned char vrmbuf[768];
// Main function
void main()
{
unsigned char val;
unsigned char vrmbuf[768];
unsigned short i, j, p, q, x, y;
// Set screen mode to 2
set_mode(mode_2);
msx_color(15, 0, 0);
// Sprite size is 16x16
set_sprite_mode(sprite_large);
// Read pattern generator table
buf2vram(ptngen, 0x0000, 0x0800);
ram2vram(ptngen, 0x0000, 0x0800);
// 2nd and 3rd row
ram2vram(ptngen, 0x0800, 0x0800);
ram2vram(ptngen, 0x1000, 0x0800);
// Read pattern color table
buf2vram(ptnclr, 0x2000, 0x0800);
// Copy definitions to 2nd and 3rd row
vram2vram(0x0800, 0x0000, 0x0800);
vram2vram(0x1000, 0x0000, 0x0800);
vram2vram(0x2800, 0x2000, 0x0800);
vram2vram(0x3000, 0x2000, 0x0800);
ram2vram(ptnclr, 0x2000, 0x0800);
// 2nd and 3rd row
ram2vram(ptnclr, 0x2800, 0x0800);
ram2vram(ptnclr, 0x3000, 0x0800);
// Read sprite pattern generator table
buf2vram(sprptn, 0x3800, 0x0800);
// Show sandbox
buf2vram(nametable, 0x1800, 768);
do {
val = get_trigger(0);
} while(!val); // hit space bar to exit
ram2vram(sprptn, 0x3800, 0x0800);
// Show sprite
put_sprite_16(0, 128, 79, 1, 15);
// Show map
Expand All @@ -56,7 +53,7 @@ void main()
vrmbuf[p + 33] = mapptn[(q << 2) + 3];
}
}
buf2vram(vrmbuf, 0x1800, 768);
ram2vram(vrmbuf, 0x1800, 768);
do
{
val = msx_get_stick(0);
Expand All @@ -72,67 +69,32 @@ void main()
while(val == 0);
}
}

// Library
unsigned short dst_addr;
unsigned short src_addr;
unsigned short cpy_size;
#asm
EXTERN msxbios
DEFC MSX_BIOSCALL_RDVRM = $004A
DEFC MSX_BIOSCALL_WRTVRM = $004D
DEFC MSX_BIOSCALL_SETWRT = $0053
extern msxbios
public _ram2vram
defc MSX_BIOSCALL_SETWRT = $0053
// ram2vram(unsigned short src, unsigned short dst, unsigned short len)
_ram2vram:
ld ix, 2
add ix, sp
ld d, (ix+5)
ld e, (ix+4)
ld h, (ix+3)
ld l, (ix+2)
ld b, (ix+1)
ld c, (ix+0)
ld ix, MSX_BIOSCALL_SETWRT
call msxbios
di
_ram2vram_loop:
ld a, (de)
out ($98), a
inc de
dec bc
ld a, c
or b
jr nz, _ram2vram_loop
ei
ret
#endasm
void buf2vram(unsigned short src, unsigned short dst, unsigned short len)
{
dst_addr = dst;
src_addr = src;
cpy_size = len;
#asm
DI
LD BC, (_cpy_size)
LD DE, (_src_addr)
LD HL, (_dst_addr)
LD IX, MSX_BIOSCALL_SETWRT
CALL msxbios
MSX1_VWRITE_LOOP:
LD A, (DE)
OUT ($98), A
INC DE
DEC BC
LD A, C
OR B
JR NZ, MSX1_VWRITE_LOOP
EI
#endasm
}
void vram2vram(unsigned short dst, unsigned short src, unsigned short size)
{
dst_addr = dst;
src_addr = src;
cpy_size = size;
#asm
DI
LD HL, (_cpy_size)
LD C, L
LD B, H
LD HL, (_dst_addr)
EX DE, HL
LD HL, (_src_addr)
VRM_CPY_LOOP:
LD IX, MSX_BIOSCALL_RDVRM
CALL msxbios
EX DE, HL
LD IX, MSX_BIOSCALL_WRTVRM
CALL msxbios
EX DE, HL
INC DE
INC HL
DEC BC
LD A, B
OR C
JR NZ, VRM_CPY_LOOP
EI
#endasm
}

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119 changes: 40 additions & 79 deletions Build/Example2/MSXSample.c
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Original file line number Diff line number Diff line change
Expand Up @@ -8,13 +8,14 @@
#include "pcg_def.h"
#include "map_def.h"
#include "spr_def.h"

void buf2vram(unsigned short src, unsigned short dst, unsigned short len);
void vram2vram(unsigned short dst, unsigned short src, unsigned short size);
// Prototype declaration
void ram2vram(unsigned short, unsigned short, unsigned short);
// Working buffer
static unsigned char vrmbuf[768];
// Main function
void main()
{
unsigned char val;
unsigned char vrmbuf[768];
unsigned short i, j, p, q, x, y;
unsigned char* ptr;
unsigned char byte_left;
Expand All @@ -24,21 +25,17 @@ void main()
// Sprite size is 16x16
set_sprite_mode(sprite_large);
// Read pattern generator table
buf2vram(ptngen, 0x0000, 0x0800);
ram2vram(ptngen, 0x0000, 0x0800);
// 2nd and 3rd row
ram2vram(ptngen, 0x0800, 0x0800);
ram2vram(ptngen, 0x1000, 0x0800);
// Read pattern color table
buf2vram(ptnclr, 0x2000, 0x0800);
// Copy definitions to 2nd and 3rd row
vram2vram(0x0800, 0x0000, 0x0800);
vram2vram(0x1000, 0x0000, 0x0800);
vram2vram(0x2800, 0x2000, 0x0800);
vram2vram(0x3000, 0x2000, 0x0800);
ram2vram(ptnclr, 0x2000, 0x0800);
// 2nd and 3rd row
ram2vram(ptnclr, 0x2800, 0x0800);
ram2vram(ptnclr, 0x3000, 0x0800);
// Read sprite pattern generator table
buf2vram(sprptn, 0x3800, 0x0800);
// Show sandbox
buf2vram(nametable, 0x1800, 768);
do {
val = get_trigger(0);
} while(!val); // hit space bar to exit
ram2vram(sprptn, 0x3800, 0x0800);
// Show sprite
put_sprite_16(0, 128, 79, 1, 15);
// Show map
Expand Down Expand Up @@ -74,7 +71,7 @@ void main()
vrmbuf[p + 33] = mapptn[(val << 2) + 3];
}
}
buf2vram(vrmbuf, 0x1800, 768);
ram2vram(vrmbuf, 0x1800, 768);
do
{
val = msx_get_stick(0);
Expand All @@ -90,67 +87,31 @@ void main()
while(val == 0);
}
}

// Library
unsigned short dst_addr;
unsigned short src_addr;
unsigned short cpy_size;
#asm
EXTERN msxbios
DEFC MSX_BIOSCALL_RDVRM = $004A
DEFC MSX_BIOSCALL_WRTVRM = $004D
DEFC MSX_BIOSCALL_SETWRT = $0053
extern msxbios
public _ram2vram
defc MSX_BIOSCALL_SETWRT = $0053
_ram2vram:
ld ix, 2
add ix, sp
ld d, (ix+5)
ld e, (ix+4)
ld h, (ix+3)
ld l, (ix+2)
ld b, (ix+1)
ld c, (ix+0)
ld ix, MSX_BIOSCALL_SETWRT
call msxbios
di
_ram2vram_loop:
ld a, (de)
out ($98), a
inc de
dec bc
ld a, c
or b
jr nz, _ram2vram_loop
ei
ret
#endasm
void buf2vram(unsigned short src, unsigned short dst, unsigned short len)
{
dst_addr = dst;
src_addr = src;
cpy_size = len;
#asm
DI
LD BC, (_cpy_size)
LD DE, (_src_addr)
LD HL, (_dst_addr)
LD IX, MSX_BIOSCALL_SETWRT
CALL msxbios
MSX1_VWRITE_LOOP:
LD A, (DE)
OUT ($98), A
INC DE
DEC BC
LD A, C
OR B
JR NZ, MSX1_VWRITE_LOOP
EI
#endasm
}
void vram2vram(unsigned short dst, unsigned short src, unsigned short size)
{
dst_addr = dst;
src_addr = src;
cpy_size = size;
#asm
DI
LD HL, (_cpy_size)
LD C, L
LD B, H
LD HL, (_dst_addr)
EX DE, HL
LD HL, (_src_addr)
VRM_CPY_LOOP:
LD IX, MSX_BIOSCALL_RDVRM
CALL msxbios
EX DE, HL
LD IX, MSX_BIOSCALL_WRTVRM
CALL msxbios
EX DE, HL
INC DE
INC HL
DEC BC
LD A, B
OR C
JR NZ, VRM_CPY_LOOP
EI
#endasm
}

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