Merge pull request #78 from jbrandwood/master

Add load_sprites() to HuCC.
pce-devel · Feb 26, 2025 · 5b0619a · 5b0619a
2 parents e4ba39b + 2db9d3b
commit 5b0619a
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Showing 4 changed files with 65 additions and 11 deletions.
diff --git a/include/hucc/core-startup.asm b/include/hucc/core-startup.asm
@@ -241,6 +241,8 @@ __trampolineptr =	$5FFF			; are in MPR2, tell PCEAS to
 
 CORE_BANK	=	bank(*) - _bank_base	; It isn't always zero! ;-)
 
+		.bank	CORE_BANK, "CORE_BANK"	; Give it a label.
+
 	.if	USING_MPR7
 CORE_PAGE	=	7			; User code runs in MPR7.
 	.else
@@ -600,7 +602,11 @@ CONST_BANK	.rs	2
 
 DATA_BANK	.rs	0
 		.data
+	.if	BUILDING_STAGE1
+		.bank	DATA_BANK
+	.else
 		.bank	DATA_BANK, ".data"
+	.endif
 		.org	$6000
 
 		.code
diff --git a/include/hucc/hucc-baselib.asm b/include/hucc/hucc-baselib.asm
@@ -680,6 +680,48 @@ _set_sprpal.3	.macro
 
 
 
+; ***************************************************************************
+; ***************************************************************************
+;
+; N.B. Declared in hucc-gfx.h, but defined here because they're macros!
+;
+; void __fastcall __macro load_sprites( unsigned int vram<_di>, unsigned char __far *data<_bp_bank:_bp>, unsigned int num_groups<acc> );
+; void __fastcall __macro sgx_load_sprites( unsigned int vram<_di>, unsigned char __far *data<_bp_bank:_bp>, unsigned int num_groups<acc> );
+; void __fastcall __macro far_load_sprites( unsigned int vram<_di>, unsigned int num_groups<acc> );
+; void __fastcall __macro sgx_far_load_sprites( unsigned int vram<_di>, unsigned int num_groups<acc> );
+
+	.if	SUPPORT_SGX
+		.macro	_sgx_load_sprites.3
+		stz.l	<_ax
+		asl	a
+		sta.h	<_ax
+		call	_sgx_load_vram.3
+		.endm
+
+		.macro	_sgx_far_load_sprites.2
+		stz.l	<_ax
+		asl	a
+		sta.h	<_ax
+		call	_sgx_load_vram.3
+		.endm
+	.endif
+
+		.macro	_load_sprites.3
+		stz.l	<_ax
+		asl	a
+		sta.h	<_ax
+		call	_load_vram.3
+		.endm
+
+		.macro	_far_load_sprites.2
+		stz.l	<_ax
+		asl	a
+		sta.h	<_ax
+		call	_load_vram.3
+		.endm
+
+
+
 ; ***************************************************************************
 ; ***************************************************************************
 

diff --git a/include/hucc/hucc-codegen.asm b/include/hucc/hucc-codegen.asm
@@ -541,11 +541,11 @@ __switch_r.wr	.macro
 		jmp	[!table+, x]
 		.endm
 
-; !table:	dw	jmp1		; +01 x=\1
-;		dw	jmp2		; +23 x=\1+1
-;		dw	jmp3		; +45 x=\1+2
-;		dw	jmp4		; +67 x=\2
-;		dw	jmpdefault	; +89 x=\2+1
+; !table:	dw	jmp1		; +01 x=(\1 - \1)
+;		dw	jmp2		; +23 x=(\1 - \1)+1
+;		dw	jmp3		; +45 x=(\1 - \1)+2
+;		dw	jmp4		; +67 x=(\2 - \1)
+;		dw	jmpdefault	; +89 x=(\2 - \1)+1
 
 ; **************
 ; Y:A is the value to check for.
@@ -561,7 +561,7 @@ __switch_r.ur	.macro
 	.endif
 	.else
 		sec
-		sbc.l	#\1
+		sbc	#\1
 		bvc	!+
 		eor	#$80
 !:		bmi	!default+
@@ -574,11 +574,11 @@ __switch_r.ur	.macro
 		jmp	[!table+, x]
 		.endm
 
-; !table:	dw	jmp1		; +01 x=\1
-;		dw	jmp2		; +23 x=\1+1
-;		dw	jmp3		; +45 x=\1+2
-;		dw	jmp4		; +67 x=\2
-;		dw	jmpdefault	; +89 x=\2+1
+; !table:	dw	jmp1		; +01 x=(\1 - \1)
+;		dw	jmp2		; +23 x=(\1 - \1)+1
+;		dw	jmp3		; +45 x=(\1 - \1)+2
+;		dw	jmp4		; +67 x=(\2 - \1)
+;		dw	jmpdefault	; +89 x=(\2 - \1)+1
 
 ; **************
 ; the start of a "default" statement

diff --git a/include/hucc/hucc-gfx.h b/include/hucc/hucc-gfx.h
@@ -97,6 +97,9 @@ extern void __fastcall sgx_load_bat( unsigned int vram<_di>, unsigned char __far
 
 extern void __fastcall load_palette( unsigned char palette<_al>, unsigned char __far *data<_bp_bank:_bp>, unsigned char num_palettes<_ah> );
 
+extern void __fastcall __macro load_sprites( unsigned int vram<_di>, unsigned char __far *data<_bp_bank:_bp>, unsigned int num_groups<acc> );
+extern void __fastcall __macro sgx_load_sprites( unsigned int vram<_di>, unsigned char __far *data<_bp_bank:_bp>, unsigned int num_groups<acc> );
+
 extern void __fastcall set_font_addr( unsigned int vram<acc> );
 extern void __fastcall set_font_pal( unsigned char palette<acc> );
 
@@ -131,6 +134,9 @@ extern void __fastcall sgx_far_load_bat( unsigned int vram<_di>, unsigned char t
 extern void __fastcall far_load_palette( unsigned char palette<_al>, unsigned char num_palettes<_ah> );
 extern void __fastcall far_load_font( unsigned char count<_al>, unsigned int vram<acc> );
 
+extern void __fastcall __macro far_load_sprites( unsigned int vram<_di>, unsigned int num_groups<acc> );
+extern void __fastcall __macro sgx_far_load_sprites( unsigned int vram<_di>, unsigned int num_groups<acc> );
+
 // Deprecated functions ...
 
 extern void __fastcall load_background( unsigned char __far *tiles<_bp_bank:_bp>, unsigned char __far *palettes<__fbank:__fptr>, unsigned char __far *bat<_cl:_bx>, unsigned char w<_dl>, unsigned char h<_dh> );