/
Laser2.c
2154 lines (2028 loc) · 79.9 KB
/
Laser2.c
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/***************************/
/* LASER 2 Graphic Engine */
/* Coded by Oleg N. Cher */
/* zx.oberon2.ru/forum */
/***************************/
extern unsigned int _Laser2_SCRL_BUF; // Scroll buffer start address
extern unsigned int _Laser2_SPRT_ADR; // Sprite file start address
// Sprite engine (in OUT_OF_SCREEN the coords can be outside the screen):
void Laser2_ATOF_INSCR (void);
void Laser2_ATOF_OUTSCR (void);
void Laser2_ATON_INSCR (void);
void Laser2_ATON_OUTSCR (void);
void Laser2_GTBL_INSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_GTBL_OUTSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_GTND_INSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_GTND_OUTSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_GTNV_INSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_GTNV_OUTSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_GTOR_INSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_GTOR_OUTSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_GTXR_INSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_GTXR_OUTSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_INVM (unsigned char spn) __z88dk_fastcall;
void Laser2_SCRN_INSCR (unsigned char hbyteadr) __z88dk_fastcall;
void Laser2_SCRN_OUTSCR (unsigned char hbyteadr) __z88dk_fastcall;
void Laser2_PTBL_INSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_PTBL_OUTSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_PTND_INSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_PTND_OUTSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_PTNV_INSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_PTNV_OUTSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_PTOR_INSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_PTOR_OUTSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_PTXR_INSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
void Laser2_PTXR_OUTSCR (signed char col, signed char row, unsigned char spn) __z88dk_callee;
// Screen windows processing (coordinates CANNOT be outside the screen):
void Laser2_CLSV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_INVV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_MIRV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_SDNV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt, unsigned char npx) __z88dk_callee;
void Laser2_SUPV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt, unsigned char npx) __z88dk_callee;
void Laser2_SL1V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_SL4V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_SL8V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_SR1V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_SR4V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_SR8V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_WL1V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_WL4V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_WL8V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_WR1V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_WR4V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_WR8V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_WU1V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
// Attribute windows processing (coordinates CANNOT be outside the screen):
void Laser2_AWLV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_AWRV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_ATUV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_ATDV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_ASUV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_ASDV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_MARV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_SETV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_BR0V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
void Laser2_BR1V (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __z88dk_callee;
/* Ñïðàéòû õðàíÿòñÿ â ïàìÿòè â ñëåäóþùåì ôîðìàòå:
Áàéò 1 - íîìåð ñïðàéòà.
Áàéò 2 - ìëàäøèé áàéò ðàçìåðà ñïðàéòà (9*HGT*LEN+3).
Áàéò 3 - ñòàðøèé áàéò ðàçìåðà ñïðàéòà.
Áàéò 4 - äëèíà ñïðàéòà.
Áàéò 5 - âûñîòà ñïðàéòà.
8*HGT*LEN - äàííûå î ñîñòîÿíèè
ïèêñåëåé.
HGT*LEN - àòðèáóòû.
ÈÒÎÃÎ: 9*HGT*LEN+5 áàéòîâ.
static typedef struct Sprite {
BYTE sprN;
struct Sprite *sprNext;
BYTE sprLen;
BYTE sprHgt;
};
*/
/*================================== Header ==================================*/
unsigned int _Laser2_SCRL_BUF; // Scroll buffer start address
/*--------------------------------- Cut here ---------------------------------*/
unsigned int _Laser2_SPRT_ADR; // Sprite file start address
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_ATOF_INSCR (void)
{
__asm
.globl _Laser2_ATOF_IN
LD A, #0xC9 ; "RET"
LD (_Laser2_ATOF_IN), A
__endasm;
} //Laser2_ATOF_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_ATOF_OUTSCR (void)
{
__asm
.globl _Laser2_ATOF_OUT
LD A, #0xC9 ; "RET"
LD (_Laser2_ATOF_OUT), A
__endasm;
} //Laser2_ATOF_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_ATON_INSCR (void)
{
__asm
.globl _Laser2_ATOF_IN
LD A, #0xED ; "LD DE,(ADDR) ED5BXXXX"
LD (_Laser2_ATOF_IN), A
__endasm;
} //Laser2_ATON_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_ATON_OUTSCR (void)
{
__asm
.globl _Laser2_ATOF_OUT
LD A, #0x11 ; "LD DE, NN 11XXXX"
LD (_Laser2_ATOF_OUT), A
__endasm;
} //Laser2_ATON_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_SCRN_INSCR (unsigned char hbyteadr) __z88dk_fastcall
{
__asm
.globl _Laser2_SCR_1
.globl _Laser2_SCR_2
.globl _Laser2_SCRATR_IN
.globl _Laser2_SCRATR
LD A, L
LD (_Laser2_SCR_1+1), A
LD (_Laser2_SCR_2+1), A
ADD #0x18
LD (_Laser2_SCRATR_IN+1), A
LD (_Laser2_SCRATR+1), A
__endasm;
} //Laser2_SCRN_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_GTBL_INSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_GTBL_IN
.globl __Laser2_PUT_SPRITE_INSCR
.globl ATRLINE_LDIR_IN
.globl SPRT_MODE_IN
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0x001A ; "LD A, (DE)" "NOP"
__Laser2_GTBL_IN:
LD A, #0x77 ; "LD (HL), A"
LD (SPRT_MODE_IN+2), A
PUSH HL
LD HL, #ATRLINE_LDIR_IN
LD (HL), #0xCD ; "CALL"
INC HL
LD (HL), #<DRAW_ATR_IN
INC HL
LD (HL), #>DRAW_ATR_IN
POP HL
CALL __Laser2_PUT_SPRITE_INSCR
LD A, #0x12 ; "LD (DE), A"
LD (SPRT_MODE_IN+2), A
LD HL, #ATRLINE_LDIR_IN
LD (HL), #0xED ; "LDIR"
INC HL
LD (HL), #0xB0
INC HL
LD (HL), #0x7B ; "LD A, E"
RET
; ----------
DRAW_ATR_IN: EX DE, HL
LDIR
EX DE, HL
LD A, E
RET
__endasm;
} //Laser2_GTBL_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_GTBL_OUTSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_GTBL_OUT
.globl __Laser2_PUT_SPRITE_OUTSCR
.globl ATRLINE_LDIR_OUT
.globl SPRT_MODE_OUT
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0x001A ; "LD A, (DE)" "NOP"
__Laser2_GTBL_OUT:
LD A, #0x77 ; "LD (HL), A"
LD (SPRT_MODE_OUT+2), A
PUSH HL
LD HL, #ATRLINE_LDIR_OUT
LD (HL), #0xCD ; "CALL"
INC HL
LD (HL), #<DRAW_ATR_OUT
INC HL
LD (HL), #>DRAW_ATR_OUT
POP HL
CALL __Laser2_PUT_SPRITE_OUTSCR
LD A, #0x12 ; "LD (DE), A"
LD (SPRT_MODE_OUT+2), A
LD HL, #ATRLINE_LDIR_OUT
LD (HL), #0x67 ; "LD H, A"
INC HL
LD (HL), #0xED ; "LDIR"
INC HL
LD (HL), #0xB0
RET
; ----------
DRAW_ATR_OUT: LD H, A
EX DE, HL
LDIR
EX DE, HL
RET
__endasm;
} //Laser2_GTBL_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_GTND_INSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_GTBL_IN
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0xA61A ; "LD A, (DE)" "AND (HL)"
JP __Laser2_GTBL_IN
__endasm;
} //Laser2_GTND_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_GTND_OUTSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_GTBL_OUT
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0xA61A ; "LD A, (DE)" "AND (HL)"
JP __Laser2_GTBL_OUT
__endasm;
} //Laser2_GTND_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_GTNV_INSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_GTBL_IN
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0x2F1A ; "LD A, (DE)" "CPL"
JP __Laser2_GTBL_IN
__endasm;
} //Laser2_GTNV_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_GTNV_OUTSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_GTBL_OUT
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0x2F1A ; "LD A, (DE)" "CPL"
JP __Laser2_GTBL_OUT
__endasm;
} //Laser2_GTNV_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_GTOR_INSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_GTBL_IN
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0xB61A ; "LD A, (DE)" "OR (HL)"
JP __Laser2_GTBL_IN
__endasm;
} //Laser2_GTOR_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_GTOR_OUTSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_GTBL_OUT
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0xB61A ; "LD A, (DE)" "OR (HL)"
JP __Laser2_GTBL_OUT
__endasm;
} //Laser2_GTOR_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_GTXR_INSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_GTBL_IN
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0xAE1A ; "LD A, (DE)" "XOR (HL)"
JP __Laser2_GTBL_IN
__endasm;
} //Laser2_GTXR_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_GTXR_OUTSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_GTBL_OUT
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0xAE1A ; "LD A, (DE)" "XOR (HL)"
JP __Laser2_GTBL_OUT
__endasm;
} //Laser2_GTXR_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_SCRN_OUTSCR (unsigned char hbyteadr) __z88dk_fastcall
{
__asm
.globl _Laser2_SCR_1
.globl _Laser2_SCR_2
.globl _Laser2_SCRATR
.globl _Laser2_SCRATR_OUT
LD A, L
LD (_Laser2_SCR_1+1), A
LD (_Laser2_SCR_2+1), A
ADD #0x18
LD (_Laser2_SCRATR_OUT+1), A
LD (_Laser2_SCRATR+1), A
__endasm;
} //Laser2_SCRN_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_PTBL_INSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_PUT_SPRITE_INSCR
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0x007E ; "LD A,(HL)" "NOP"
JP __Laser2_PUT_SPRITE_INSCR
__endasm;
} //Laser2_PTBL_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_PTBL_OUTSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_PUT_SPRITE_OUTSCR
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0x007E ; "LD A,(HL)" "NOP"
JP __Laser2_PUT_SPRITE_OUTSCR
__endasm;
} //Laser2_PTBL_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_PTND_INSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_PUT_SPRITE_INSCR
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0xA61A ; "LD A,(DE)" "AND (HL)"
JP __Laser2_PUT_SPRITE_INSCR
__endasm;
} //Laser2_PTND_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_PTND_OUTSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_PUT_SPRITE_OUTSCR
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0xA61A ; "LD A,(DE)" "AND (HL)"
JP __Laser2_PUT_SPRITE_OUTSCR
__endasm;
} //Laser2_PTND_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_PTNV_INSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_PUT_SPRITE_INSCR
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0x2F7E ; "LD A,(HL)" "CPL"
JP __Laser2_PUT_SPRITE_INSCR
__endasm;
} //Laser2_PTNV_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_PTNV_OUTSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_PUT_SPRITE_OUTSCR
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0x2F7E ; "LD A,(HL)" "CPL"
JP __Laser2_PUT_SPRITE_OUTSCR
__endasm;
} //Laser2_PTNV_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_PTOR_INSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_PUT_SPRITE_INSCR
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0xB61A ; "LD A,(DE)" "OR (HL)"
JP __Laser2_PUT_SPRITE_INSCR
__endasm;
} //Laser2_PTOR_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_PTOR_OUTSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_PUT_SPRITE_OUTSCR
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0xB61A ; "LD A,(DE)" "OR (HL)"
JP __Laser2_PUT_SPRITE_OUTSCR
__endasm;
} //Laser2_PTOR_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_PTXR_INSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_PUT_SPRITE_INSCR
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0xAE1A ; "LD A,(DE)" "XOR (HL)"
JP __Laser2_PUT_SPRITE_INSCR
__endasm;
} //Laser2_PTXR_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_PTXR_OUTSCR (signed char col, signed char row, unsigned char spn) __naked __z88dk_callee
{
__asm
.globl __Laser2_PUT_SPRITE_OUTSCR
POP HL
POP BC ; C = col; B = row
DEC SP
POP DE ; D = spn
PUSH HL
LD HL, #0xAE1A ; "LD A,(DE)" "XOR (HL)"
JP __Laser2_PUT_SPRITE_OUTSCR
__endasm;
} //Laser2_PTXR_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void _Laser2_XYtoScr (void) {
// Ïðîöåäóðà ðàñ÷¸òà àäðåñà ýêðàíà èç êîîðäèíàò
// Âõîä: C = x; B = y
// Âûõîä: HL = àäðåñ âèäåîïàìÿòè
__asm
LD A, B
AND #7
RRCA
RRCA
RRCA
OR C
LD L, A
LD A, B
AND #24
.globl _Laser2_SCR_1
_Laser2_SCR_1: ADD #0x40
LD H, A ; 14 áàéò, 53 òàêòà
__endasm;
} //_Laser2_XYtoScr
/*--------------------------------- Cut here ---------------------------------*/
void _Laser2_XYtoScrAtr (void) {
// Ïðîöåäóðà âû÷èñëåíèÿ àäðåñà íà ýêðàíå ïî êîîðäèíàòàì
// Âõîä: L=x, H=y
// Âûõîä: HL = àäðåñ ïàìÿòè àòðèáóòîâ
__asm
; HL = y
LD A, L
LD L, H
LD H, #0
; HL = y*32
ADD HL, HL
ADD HL, HL
ADD HL, HL
ADD HL, HL
ADD HL, HL
; HL = y*32 + x
ADD L
LD L, A
;
LD A, H ; 4t
.globl _Laser2_SCRATR
_Laser2_SCRATR: ADD #0x58 ; 7t
LD H, A ; 4t
__endasm;
} //_Laser2_XYtoScrAtr
/*--------------------------------- Cut here ---------------------------------*/
void _Laser2_Pixel_Add (void) {
// Ïðîöåäóðà âû÷èñëåíèÿ àäðåñà íà ýêðàíå ïî êîîðäèíàòàì
// Âõîä: C = x (çíàêîìåñò), A = y (ïèêñåëåé)
// Âûõîä: HL = àäðåñ áàéòà â ýêðàííîé îáëàñòè
__asm
LD B, A ; 4t
AND #0x38 ; 7t
RLA ; 4t
RLA ; 4t
OR C ; 4t
LD L, A ; 4t
LD A, B ; 4t
AND #7 ; 7t
LD H, A ; 4t
LD A, B ; 4t
AND #0xC0 ; 7t
RRA ; 4t
RRA ; 4t
RRA ; 4t
OR H ; 4t
.globl _Laser2_SCR_2
_Laser2_SCR_2: ADD #0x40 ; 7t
LD H, A ; 4t
__endasm;
} //_Laser2_Pixel_Add
/*--------------------------------- Cut here ---------------------------------*/
void _Laser2_FindSprite (void)
// Input: D = spn
// Output: Z = not found | NZ = found
// HL = adr
{
__asm
LD HL, (__Laser2_SPRT_ADR)
FIND_BY_N_IN$: LD A, (HL) ; N of a sprite
OR A
RET Z ; Return Z
INC HL
CP D ; spn
JR Z, SPRT_FOUND_IN$
LD C, (HL)
INC HL
LD B, (HL)
ADD HL, BC ; + offset to next sprite
JR FIND_BY_N_IN$
SPRT_FOUND_IN$: INC HL
INC HL
OR A ; Return NZ
__endasm;
} //_Laser2_FindSprite
/*--------------------------------- Cut here ---------------------------------*/
void _Laser2_DE_x8 (void)
// Input: DE = x
// Output: DE = 8*x
{
__asm
SLA E
RL D
SLA E
RL D
SLA E
RL D
__endasm;
} //_Laser2_DE_x8
/*--------------------------------- Cut here ---------------------------------*/
void _Laser2_HL_x8 (void)
// Input: HL = x
// Output: HL = 8*x
{
__asm
SLA L
RL H
SLA L
RL H
SLA L
RL H
__endasm;
} //_Laser2_HL_x8
/*--------------------------------- Cut here ---------------------------------*/
void _Laser2_PUT_SPRITE_OUTSCR (void) {
// HL: mode; C: col; B: row; D: spn
__asm
.globl __Laser2_FindSprite
.globl __Laser2_DE_x8
.globl __Laser2_HL_x8
.globl SPRT_MODE_OUT
.globl __Laser2_XYtoScr
LD (SPRT_MODE_OUT), HL ; Set draw mode
PUSH BC
CALL __Laser2_FindSprite
POP DE
RET Z
; col
LD C, (HL) ; len
LD A, C
EX AF, AF
XOR A
LD (LEFT_SKIP$+1), A
LD A, E
OR A ; IF col < 0 THEN
JP P, X_POSITIVE_OR_0$
NEG
LD (LEFT_SKIP$+1), A
LD A, E
ADD C
RET Z ; -col = len
RET M ; -col < len
LD C, A ; len := len + col
LD E, #0 ; col := 0
; END
; len
X_POSITIVE_OR_0$: LD A, E
SUB #32
RET NC ; IF col >= 32 THEN RETURN END
ADD C
JP P, COR_RIGHT_SKIP$
XOR A
COR_RIGHT_SKIP$: LD (RIGHT_SKIP$+1), A
NEG
ADD C
LD C, A ;
; row
INC HL
LD B, (HL) ; hgt
XOR A
LD (UP_SKIP$+1), A
LD A, D
OR A ; IF row < 0 THEN
JP P, Y_POSITIVE_OR_0$
NEG
LD (UP_SKIP$+1), A
LD A, D
ADD B
RET Z ; -row = hgt
RET M ; -row < hgt
LD B, A ; hgt := hgt + row
LD D, #0 ; row := 0
; END
; hgt
Y_POSITIVE_OR_0$: LD A, D
SUB #24
RET NC ; IF row >= 24 THEN RETURN END
ADD B
JP P, COR_DOWN_SKIP$
XOR A
COR_DOWN_SKIP$: LD (DOWN_SKIP$+1), A
NEG
ADD B
LD B, A
PUSH BC ; len hgt
PUSH HL
LD C, E
LD B, D
CALL __Laser2_XYtoScr
LD (SCR_ADR_OUT$+1), HL
LEFT_SKIP$: LD HL, #0
CALL __Laser2_HL_x8
LD (LEFT_SKIP_x8$+1), HL
RIGHT_SKIP$: LD HL, #0
CALL __Laser2_HL_x8
LD (RIGHT_SKIP_x8$+1), HL
LD HL, #0
DOWN_SKIP$: LD DE, #0
CALL __Laser2_DE_x8
EX AF, AF
PUSH AF
INC_DN_SKIP_LINE$:ADD HL, DE
DEC A
JR NZ, INC_DN_SKIP_LINE$
LD (DOWN_SKIP_x8$+1), HL
POP AF
LD (UP_SKIP_MULT$+1), A
POP HL
INC HL
UP_SKIP$: LD DE, #0
CALL __Laser2_DE_x8
INC_UP_SKIP_LINE$:ADD HL, DE
DEC A
JR NZ, INC_UP_SKIP_LINE$
POP BC ; len hgt
PUSH BC
SCR_ADR_OUT$: LD DE, #0 ; adr at screen (up left corner)
SPRT_HLINE_OUT$: LD A, E ; Begin of loop on charlines
LD (SCR_LOBYTE_OUT$+1), A
PUSH DE
LEFT_SKIP_x8$: LD DE, #0
ADD HL, DE
POP DE
PUSH BC
LD B, #8 ; Draw 8 bytes (one charline)
SPRT_CHAR_OUT$:
SPRT_MODE_OUT: LD A, (HL) ; "LD A, (HL) " | "LD A, (DE)"
NOP ; "NOP" | "CPL" | "AND (HL)" | "OR (HL)" | "XOR (HL)"
LD (DE), A
INC HL
INC D
DJNZ SPRT_CHAR_OUT$
LD B, #8 ; Draw 8 bytes (one charline)
LD A, D
SUB A, B
LD D, A
INC E ; Next screen line
DEC C
JR NZ, SPRT_CHAR_OUT$
SCR_LOBYTE_OUT$: LD A, #0 ; X
ADD #0x20 ; Next charline
LD E, A ; If carry then jump to next third of screen
JR NC, CONTIN_1_3_OUT$
LD A, D ; Next third of screen
ADD B
LD D, A ; DE := DE + 0x0800
CONTIN_1_3_OUT$:
RIGHT_SKIP_x8$: LD BC, #0
ADD HL, BC
POP BC
DJNZ SPRT_HLINE_OUT$ ; End of loop on charlines (the same third)
POP BC ; len hgt
.globl _Laser2_ATOF_OUT
_Laser2_ATOF_OUT: ; "RET" | "LD DE, NN"
DOWN_SKIP_x8$: LD DE, #0
ADD HL, DE
UP_SKIP_MULT$: LD A, #0
COR_UP_SKIP$: EX AF, AF
LD A, (UP_SKIP$+1)
ADD L
LD L, A
LD A, H
ADC #0
LD H, A
EX AF, AF
DEC A
JR NZ, COR_UP_SKIP$
LD DE, (SCR_ADR_OUT$+1)
LD A, D ; Calculate attribute address
RRCA
RRCA
RRCA
AND #3
.globl _Laser2_SCRATR_OUT
_Laser2_SCRATR_OUT:
ADD #0x58
LD D, A
LD A, #32
SUB A, C ; 32 - len
LD (SPRT_HGT_DIS_OUT$+1), A
DRAW_ATRLINE_OUT$:PUSH BC ; Begin of loop on charlines
LD B, #0
LD A, (LEFT_SKIP$+1)
ADD L
LD L, A
LD A, H
ADC #0
.globl ATRLINE_LDIR_OUT
ATRLINE_LDIR_OUT: LD H, A
LDIR
LD A, (RIGHT_SKIP$+1)
ADD L
LD L, A
LD A, H
ADC B
LD H, A
LD A, E
SPRT_HGT_DIS_OUT$:ADD #0
LD E, A
LD A, D
ADC B
LD D, A
POP BC
DJNZ DRAW_ATRLINE_OUT$
__endasm;
} //_Laser2_PUT_SPRITE_OUTSCR
/*--------------------------------- Cut here ---------------------------------*/
void _Laser2_PUT_SPRITE_INSCR (void) {
// HL: mode; C: col; B: row; D: spn
__asm
.globl __Laser2_FindSprite
.globl __Laser2_XYtoScr
.globl ATRLINE_LDIR_IN
.globl SPRT_MODE_IN
LD (SPRT_MODE_IN), HL ; Set draw mode
CALL __Laser2_XYtoScr
LD (SCR_ADR_IN$+1), HL
CALL __Laser2_FindSprite
RET Z
LD C, (HL) ; length of sprite
INC HL
LD B, (HL) ; height of sprite
INC HL
PUSH BC ; len hgt
SCR_ADR_IN$: LD DE, #0 ; adr at screen (up left corner)
SPRT_HLINE_IN$: LD A, E ; Begin of loop on charlines
LD (SCR_LOBYTE_IN$+1), A
PUSH BC
LD B, #8 ; Draw 8 bytes (one charline)
SPRT_CHAR_IN$:
SPRT_MODE_IN: LD A, (HL) ; "LD A, (HL) " | "LD A, (DE)"
NOP ; "NOP" | "CPL" | "AND (HL)" | "OR (HL)" | "XOR (HL)"
LD (DE), A
INC HL
INC D
DJNZ SPRT_CHAR_IN$
LD B, #8 ; Draw 8 bytes (one charline)
LD A, D
SUB A, B
LD D, A
INC E ; Next screen line
DEC C
JR NZ, SPRT_CHAR_IN$
SCR_LOBYTE_IN$: LD A, #0 ; X
ADD #0x20 ; Next charline
LD E, A ; If carry then jump to next third of screen
JR NC, CONTIN_1_3_IN$
LD A, D ; Next third of screen
ADD B
LD D, A ; DE := DE + 0x0800
CONTIN_1_3_IN$: POP BC
DJNZ SPRT_HLINE_IN$ ; End of loop on charlines (the same third)
POP BC ; len hgt
.globl _Laser2_ATOF_IN
_Laser2_ATOF_IN: ; "RET" | "LD DE,(SCR_ADR_IN$+1)"
LD DE, (SCR_ADR_IN$+1)
LD A, D ; Calculate attribute address
RRCA
RRCA
RRCA
AND #3
.globl _Laser2_SCRATR_IN
_Laser2_SCRATR_IN:ADD #0x58
LD D, A
LD A, #32
SUB A, C ; 32 - len
LD (SPRT_HGT_DIS_IN$+1), A
DRAW_ATRLINE_IN$: PUSH BC ; Begin of loop on charlines
LD B, #0
ATRLINE_LDIR_IN: LDIR
LD A, E
SPRT_HGT_DIS_IN$: ADD #0
LD E, A
LD A, D
ADC B
LD D, A
POP BC
DJNZ DRAW_ATRLINE_IN$
__endasm;
} //_Laser2_PUT_SPRITE_INSCR
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_CLSV (unsigned char col, unsigned char row, unsigned char len, unsigned char hgt) __naked __z88dk_callee
{
__asm
.globl __Laser2_XYtoScr
POP DE
POP BC ; C = col; B = row
CALL __Laser2_XYtoScr
POP BC ; C = len; B = hgt
PUSH DE
CLSV_HLINE$: PUSH BC ; Begin of loop on charlines
LD E, L
LD D, H
XOR A
CLSV_PUT_ZERO0$: LD B, #8
CLSV_PUT_ZERO$: LD (DE), A
INC D
DJNZ CLSV_PUT_ZERO$
LD D, H ; Restore D
INC E ; Next screen line
DEC C
JR NZ, CLSV_PUT_ZERO0$
LD A, L
ADD #0x20 ; Next charline
LD L, A ; If carry then jump to next third of screen
JR NC, CONTIN_1_3_CLSV$
LD A, H ; Next third of screen
ADD #8
LD H, A ; HL := HL + 0x0800
CONTIN_1_3_CLSV$: POP BC
DJNZ CLSV_HLINE$ ; End of loop on charlines (the same third)
RET
__endasm;
} //Laser2_CLSV
/*--------------------------------- Cut here ---------------------------------*/
void Laser2_INVM (unsigned char spn) __z88dk_fastcall
{
__asm
.globl __Laser2_FindSprite
LD D, L ; D = spn
CALL __Laser2_FindSprite
RET Z
LD A, (HL) ; length of sprite
ADD A
ADD A ; This code works only for length <= 32
ADD A
LD E, A ; 32*8 MOD 256 = 0
INC HL