np2/i286x/memory.x86 - diff

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Diff for /np2/i286x/memory.x86 between versions 1.9 and 1.14

version 1.9, 2004/01/25 05:41:29	version 1.14, 2005/03/18 06:49:17
Line 3	Line 3
; ToDo: egc word-boundary	; ToDo: egc word-boundary

%include 'x86/np2asm.inc'	%include 'x86/np2asm.inc'
	%include '../io/x86/iocore.inc'

section .bss	section .bss

global _mem	global _mem
extern _i286core	extern _i286core
extern _grcg
extern _gdcs
extern _tramupdate	extern _tramupdate
extern _vramupdate	extern _vramupdate
extern _cgwindow
extern _vramop	extern _vramop

_mem resb 0x200000	_mem resb 0x200000
Line 82 section .text	Line 80 section .text


%if USE_EGCASM	%if USE_EGCASM
extern _egca_read	extern egc_read
extern _egca_read_w	extern egc_read_w
extern _egca_write	extern egc_write
extern _egca_write_w	extern egc_write_w
%else	%else
extern @egc_read@4	extern @memegc_rd8@4
extern @egc_read_w@4	extern @memegc_rd16@4
extern @egc_write@8	extern @memegc_wr8@8
extern @egc_write_w@8	extern @memegc_wr16@8
%endif	%endif

; normal memory	; normal memory
Line 120 wtram_a: cmp ecx, 000a3fe0h	Line 118 wtram_a: cmp ecx, 000a3fe0h
jc short wtram_m	jc short wtram_m
cmp ecx, 000a4000h	cmp ecx, 000a4000h
jnc wcgwindow_s	jnc wcgwindow_s
	test ecx, 2
	je short wtram_m
cmp byte [_gdcs + gdcs_t.msw_accessable], 0	cmp byte [_gdcs + gdcs_t.msw_accessable], 0
je short wtram_e	je short wtram_e
wtram_m: shr ebx, 1	wtram_m: shr ebx, 1
Line 260 grcgtdw_end: pop ecx	Line 260 grcgtdw_end: pop ecx
; EGC bridge	; EGC bridge
align 16	align 16
@egc_wt: VRAMTRACE	@egc_wt: VRAMTRACE
	mov ebx, [_vramop + vramop_t.grcgwait]
	sub [_i286core + i286core_t.remainclock], ebx
pop ebx	pop ebx
%if USE_EGCASM	%if USE_EGCASM
jmp _egca_write	jmp egc_write
%else	%else
pushad	pushad
call @egc_write@8	call @memegc_wr8@8
popad	popad
ret	ret
%endif	%endif
Line 381 grcgtcr_end: not al	Line 383 grcgtcr_end: not al

; EGC bridge	; EGC bridge
align 16	align 16
@egc_rd: pop ebx	@egc_rd: mov ebx, [_vramop + vramop_t.grcgwait]
	sub [_i286core + i286core_t.remainclock], ebx
	pop ebx
%if USE_EGCASM	%if USE_EGCASM
jmp _egca_read	jmp egc_read
%else	%else
pushad	pushad
call @egc_read@4	call @memegc_rd8@4
mov [esp + 28], al	mov [esp + 28], al
popad	popad
ret	ret
Line 452 wtramw_a: je short wword_a1fffh	Line 456 wtramw_a: je short wword_a1fffh
jc short wtramw_m	jc short wtramw_m
cmp ecx, 000a3fffh	cmp ecx, 000a3fffh
jnc wcgwindoww_s	jnc wcgwindoww_s
	test ecx, 2
	je short wtramw_m
cmp byte [_gdcs + gdcs_t.msw_accessable], 0	cmp byte [_gdcs + gdcs_t.msw_accessable], 0
je short wtramw_e	je short wtramw_e
wtramw_m: and ebx, 1fffh	wtramw_m: and ebx, 1fffh
Line 613 grcgwtdw_end: pop ecx	Line 619 grcgwtdw_end: pop ecx
; EGC bridge	; EGC bridge
align 16	align 16
@egcw_wt: VRAMTRACE_W	@egcw_wt: VRAMTRACE_W
	mov ebx, [_vramop + vramop_t.grcgwait]
	sub [_i286core + i286core_t.remainclock], ebx
pop ebx	pop ebx
%if USE_EGCASM	%if USE_EGCASM
jmp _egca_write_w	jmp egc_write_w
%else	%else
test ecx, 1
jne short egcw_wtodd
pushad
call @egc_write_w@8
popad
ret
egcw_wtodd:
pushad	pushad
push ecx	call @memegc_wr16@8
push edx
call @egc_write@8
pop edx
pop ecx
inc ecx
shr edx, 8
call @egc_write@8
popad	popad
ret	ret
%endif	%endif
Line 773 grcgwtcr_end: not ax	Line 767 grcgwtcr_end: not ax

; EGC bridge	; EGC bridge
align 16	align 16
@egcw_rd: pop ebx	@egcw_rd: mov ebx, [_vramop + vramop_t.grcgwait]
test ecx, 1	sub [_i286core + i286core_t.remainclock], ebx
jne short egcw_rdodd	pop ebx
%if USE_EGCASM	%if USE_EGCASM
jmp _egca_read_w	jmp egc_read_w
%else	%else
pushad	pushad
call @egc_read_w@4	call @memegc_rd16@4
mov [esp + 28], ax	mov [esp + 28], ax
popad	popad
ret	ret
%endif	%endif

egcw_rdodd:
%if USE_EGCASM
inc ecx
call _egca_read
mov ah, al
dec ecx
jmp _egca_read
%else
pushad
push ecx
call @egc_read@4
pop ecx
mov [esp+28], al
inc ecx
call @egc_read@4
mov [esp+29], al
popad
%endif
ret

; EMM read	; EMM read
align 16	align 16

RetroPC.NET-CVS <cvs@retropc.net>

Removed from v.1.9
changed lines
	Added in v.1.14